Chemical Process Laboratory CHE120.1 Lab Report No. 4 Extraction of Coconut Oil Name Maureen L. Vega Members Sophia Jane N. Galido Rania-Raihan M. Magangcong Charity G. Tuba Course Instructor Kristine Marfe Marohomsalic Laboratory Supervisor Iris T. Berangel A. Group No. 2 Date November 6, 2025 COLLEGE OF ENGINEERING – CHEMICAL ENGINEERING DEPARTMENT 1 Chemical Process Laboratory CHE120.1 Submitted Experiment No: 1 Experiment Title: Extraction of Coconut Oil Description of the Experiment Coconut oil, obtained from the endosperm of Cocos nucifera, has gained significant attention due to its wide range of applications in food, medicine, and cosmetic industries. It is known for being rich in medium-chain triglycerides (MCTs), especially lauric acid, which possesses antimicrobial, antioxidant, and anti-inflammatory properties (Dayrit, 2015; Marina et al., 2009). Beyond its commercial value, coconut oil also plays a role in household remedies, personal care routines, and even in small-scale entrepreneurial ventures, making it a highly accessible and multipurpose product. There are several ways to extract coconut oil, but traditional methods remain widely practiced due to their low cost, minimal processing requirements, and ability to produce relatively pure oil without chemical solvents. Two well-known techniques include the wet rendering or cooking method, which relies on controlled heat to break down coconut milk emulsions, and the fermentation or natural coagulation method, which utilizes natural enzymatic reactions and microbial activity to separate oil from water and protein components (Bawalan & Chapman, 2006; Marina et al., 2009). Although both methods aim to extract oil efficiently, they differ in terms of processing time, energy requirements, and potential effects on the physical and sensory qualities of the final oil product. Coconut abundance in tropical countries makes this experiment highly relevant from an economic and sustainability perspective, as coconutderived products serve as a major contributor to agricultural productivity and local businesses (FAO, 2019). Understanding coconut oil extraction also opens opportunities for innovation in improving yield, enhancing product quality, and reducing waste—especially since by-products such as coconut meat residue and coconut water can be repurposed rather than discarded. Overall, this experiment not only serves as a learning tool for oil extraction and separation techniques but also emphasizes the value of natural resources, the importance of sustainable processing, and the potential of combining scientific understanding with traditional methods to produce safe and useful products. Objectives COLLEGE OF ENGINEERING – CHEMICAL ENGINEERING DEPARTMENT 2 Chemical Process Laboratory CHE120.1 The objectives of this experiment are to: 1. Extract coconut oil through a wet rendering method. 2. Extract coconut oil through fermentation or natural coagulation method. 3. Compare the physical qualities (color and odor), and the yield of the two extraction methods. Materials and Equipment Materials, Supplies, Glassware: 1. Coconut meat 2. Water Equipment and Testing: 1. Hotplate 4. Spatula 5. Beaker/cooking pan Procedure Raw Material Preparation 1. Select mature coconuts and remove the husk and shell. Then, separate the meat from its shell using a mechanical or manual grater. 2. Weigh the freshly grated coconut meat, then add the water (1:1 w/v coconut meat-to-water ratio). 3. Extract the coconut milk by squeezing the mixture, then filter through a clean cheesecloth to separate the meat from the liquid mixture. 4. Collect the extracted coconut milk in a clean container to be used for both extraction methods. Cooking Method 1. Pour the extracted coconut milk into a clean cooking pan or beaker. 1. Heat the mixture at medium heat while stirring continuously to prevent burning 2. Maintain heating until the water has completely evaporated and the oil becomes clear, with brown solid residues forming at the bottom. 3. Turn off the heat and allow the mixture to cool slightly. 4. Filter the oil using cheesecloth or filter paper into a clean container to remove the solid residues. 5. Allow the oil to cool completely before storing in a sealed container for further analysis. Fermentation Method 1. Transfer the freshly extracted coconut milk into a clean, transparent container or jar. 2. Cover the container and leave it undisturbed at room temperature (approximately 24–48 hours) to allow natural fermentation. 3. After fermentation, observe the formation of three layers: COLLEGE OF ENGINEERING – CHEMICAL ENGINEERING DEPARTMENT 3 Chemical Process Laboratory CHE120.1 Top layer: coconut oil Middle layer: water Bottom layer: curds/proteins 4. Carefully decant or scoop out the top oil layer, making sure not to disturb the lower layers. 5. Transfer the purified oil into a clean, airtight container for storage and analysis. Analysis and Calculations The experiment was successfully carried out, enabling the extraction of coconut oil using two traditional techniques and the evaluation of both yield and physical quality. Table 1 shows the summary of results measured and observed during the experiment. Table 1. Summary of results emphasizing the physical qualities, measured parameters, and the duration of extraction of the two extraction processes. Extraction Method Physical Qualities Measured Parameters Extracti on Duration Color Odor Coconut Milk, mL Extracte d Coconut Oil, mL 1. Wet Rendering Method Slightly Yellow Strong aromatic coconut scent with a toasted, nutty fragranc e. 700 mL 43 mL Approxi mately 2 hours 1. Fermentatio n or Natural Coagulation Method Clear/ transpare nt Noticeab le tangy or mildly sour vinegarlike 700 mL 39 mL 48 hours COLLEGE OF ENGINEERING – CHEMICAL ENGINEERING DEPARTMENT 4 Chemical Process Laboratory CHE120.1 smell due to natural ferment ation acids Percent Yield Calculation: a. Cooking Method 43 πππ π¦ππππ = 700 (100) = 6.14% b. Fermentation Method πππ π¦ππππ = 39 (100) = 5.57% 700 Based on the results, the cooking method produced a higher oil yield of 6.14% compared to the fermentation method at 5.57%, indicating that heat application plays a significant role in breaking the coconut milk emulsion more rapidly and efficiently. The continuous heating process promotes faster water evaporation and oil separation, contributing to increased oil recovery within a shorter time. In terms of physical characteristics, the cooking method resulted in slightly yellow oil with a strong nutty coconut aroma, which can be attributed to heat exposure that enhances the natural fragrance but may also cause slight color change due to mild browning reactions. In contrast, the fermentation method produced clear and more transparent oil, suggesting that the absence of high temperatures helped preserve its natural visual properties. However, the oil extracted through fermentation exhibited a distinct vinegar-like or sour scent, likely caused by the production of organic acids during microbial activity throughout the fermentation period. While this indicates natural biochemical processes taking place, the resulting odor may affect product acceptability without additional refining or deodorization. COLLEGE OF ENGINEERING – CHEMICAL ENGINEERING DEPARTMENT 5 Chemical Process Laboratory CHE120.1 These findings highlight the trade-off between yield and sensory quality. The cooking method demonstrated superior oil recovery and a more favorable coconut aroma, making it practical for faster and higher-volume extraction. Meanwhile, the fermentation method preserved better oil clarity but resulted in lower yield and a stronger acidic smell, implying that although it is a gentle and less energy-intensive process, it may require further postprocessing to improve sensory attributes. Overall, the experiment underscores how extraction conditions influence not only the quantity of oil produced but also its physical quality. It also reinforces the importance of selecting appropriate extraction methods depending on the desired product characteristics, available resources, and processing time. Market Study The global demand for coconut oil has steadily increased due to its expanding applications in the food, pharmaceutical, and personal care industries, largely driven by consumer preference for natural and plantbased products (Grand View Research, 2022). Virgin coconut oil (VCO), in particular, has gained strong market appeal because it is minimally processed, free from synthetic chemicals, and associated with various health benefits, including skin nourishment, antimicrobial properties, and metabolic support (Dayrit, 2015). Health and wellness trends further contribute to market growth, as consumers increasingly seek clean-label, functional, and organic oil alternatives for daily use (Statista, 2023). In tropical countries, coconut oil remains not only a key cooking ingredient but also a widely used product for hair care, skin treatments, massage therapy, and traditional medicine (FAO, 2019). The rising preference for sustainable and ethically sourced commodities also boosts consumer willingness to purchase products that support local farmers and small enterprises (International Trade Centre, 2021). The accessibility of digital marketplaces, social commerce platforms, and local trade networks has made it easier for small-scale coconut oil producers to enter the market and directly reach consumers (Statista, 2023). Because raw materials are abundant, inexpensive, and renewable in coconut-producing regions, small businesses are positioned to compete through affordability, authenticity, and artisanal branding (FAO, 2019; ITC, 2021). Key market segments include: COLLEGE OF ENGINEERING – CHEMICAL ENGINEERING DEPARTMENT 6 Chemical Process Laboratory CHE120.1 β Health-conscious consumers seeking organic and chemical-free products. β Households using coconut oil for cooking and personal care. β Beauty, wellness, and cosmetic micro-businesses requiring natural oil ingredients. β Local retailers and resellers catering to regional market demand. β Online consumers purchasing through social platforms and ecommerce stores. The overall market outlook indicates continued demand expansion, especially for products marketed as natural, sustainably sourced, and community-based (Grand View Research, 2022; ITC, 2021). Market Strategies To successfully penetrate the coconut oil market, strategic positioning must emphasize both product value and consumer trust. The product can be marketed as naturally processed, chemical-free, and suitable for both personal care and culinary use, appealing to health-conscious and sustainability-oriented buyers. Since modern consumers increasingly prioritize clean-label and plant-based products, highlighting artisanal extraction methods and local sourcing can strengthen product identity and differentiation. Branding should integrate minimalist and eco-friendly packaging to reflect purity and environmental responsibility. Moreover, pricing strategies may adopt competitive or slightly lower introductory pricing to attract early buyers, while gradually transitioning into value-based pricing once brand credibility is built. Digital marketing also plays a crucial role, as online platforms such as Facebook, Instagram, and TikTok provide cost-effective promotion through product demonstrations, testimonials, and educational content. Communitybased marketing such as local bazaars, partnerships with wellness advocates, sample distributions, and reseller programs can further expand visibility. Establishing transparent communication with consumers through storytelling, product origin disclosure, and consistent engagement can increase customer loyalty and long-term market retention. Competition Analysis The coconut oil market consists of large commercial brands, imported products, and small local producers, each competing through pricing, brand reputation, and product accessibility. Large-scale commercial coconut oil manufacturers benefit from wide distribution and established brand presence, but they often rely on refined oil processing, which may be perceived by consumers as less natural compared to traditional or coldprocessed oils (Grand View Research, 2022). Imported coconut oil products also compete strongly in terms of packaging and international credibility; however, they tend to be more COLLEGE OF ENGINEERING – CHEMICAL ENGINEERING DEPARTMENT 7 Chemical Process Laboratory CHE120.1 expensive due to logistics and import costs, making them less accessible to price-sensitive markets (International Trade Centre, 2021). Local smallscale producers, on the other hand, compete through affordability, freshness, and handcrafted appeal, though they may lack marketing reach and standardized packaging (FAO, 2019). Given these conditions, a competitive advantage can be established by emphasizing local sourcing, small-batch authenticity, traditional extraction methods, and chemical-free production. Pricing accessibility, combined with emotional branding that supports community livelihood and sustainability, can further position the product favorably against mass-produced alternatives. To remain competitive, maintaining consistent product quality and strengthening digital presence are essential to bridging the gap between artisanal appeal and broader market reach. COLLEGE OF ENGINEERING – CHEMICAL ENGINEERING DEPARTMENT 8 Chemical Process Laboratory CHE120.1 Appendices 1. Photo Documentation Raw Material Preparation β Weighing of the freshly grated coconut meat β Addition of water β Extraction of coconut milk by squeezing and filtering COLLEGE OF ENGINEERING – CHEMICAL ENGINEERING DEPARTMENT 9 Chemical Process Laboratory CHE120.1 Cooking method β Heating the mixture β Filtering oil and removing its residues β Measuring and cooling of oil COLLEGE OF ENGINEERING – CHEMICAL ENGINEERING DEPARTMENT 1 0 Chemical Process Laboratory CHE120.1 Fermentation method β Transferring the extracted coconut milk in a container and allowing it to naturally ferment β Measuring the purified oil 2. References COLLEGE OF ENGINEERING – CHEMICAL ENGINEERING DEPARTMENT 1 1 Chemical Process Laboratory CHE120.1 Dayrit, C. S. (2015). The properties of lauric acid and their significance in coconut oil. Journal of the American Oil Chemists’ Society, 92(1), 1–15. Food and Agriculture Organization. (2019). Coconut production and its contribution to economies in tropical regions. Grand View Research. (2022). Virgin coconut oil market size, share & trends report. International Trade Centre. (2021). The coconut sector: Market opportunities for small-scale producers. Statista. (2023). Consumer trends in natural and organic personal care products. Bawalan, D. D., & Chapman, K. R. (2006). Virgin coconut oil: Production manual for micro- and village-scale processing. FAO Regional Office for Asia and the Pacific. Marina, A. M., Che Man, Y. B., & Amin, I. (2009). Virgin coconut oil: Emerging functional food oil. Trends in Food Science & Technology, 20(10), 481–487. Nevin, K. G., & Rajamohan, T. (2004). Beneficial effects of virgin coconut oil on lipid parameters. Clinical Biochemistry, 37(9), 830–835. COLLEGE OF ENGINEERING – CHEMICAL ENGINEERING DEPARTMENT 1 2 Chemical Process Laboratory CHE120.1 Lab Report No. 5 Production of Essential Oil from Melaleuca (Melaleuca alternifolia) Leaves COLLEGE OF ENGINEERING – CHEMICAL ENGINEERING DEPARTMENT 1 3 Chemical Process Laboratory CHE120.1 Name VEGA, Maureen L. Members GALIDO, Sophia Jane N. MAGANGCONG, Rania-Raihan M. TUBA, Charity G. A. Group No. 2 Date November 06, 2025 Course Instructor Kristine Marfe Marohomsalic Laboratory Supervisor Iris T. Berangel Experiment No: 5 Experiment Title: Production of Essential Oil from Melaleuca (Melaleuca alternifolia) Leaves Submitted Description of the Experiment This experiment focuses on extracting essential oil from Melaleuca alternifolia (melaleuca or tea tree) leaves through the maceration method and determining how different volumes of coconut oil as carrier oil affect the efficiency of the extraction. Essential oils are volatile, aromatic compounds produced and stored in specialized plant structures such as oil sacs or trichomes, and their release requires disrupting these structures either mechanically or through heating (Baser & Buchbauer, 2015). Melaleuca leaves were selected because they contain high concentrations of bioactive compounds, primarily terpinen-4-ol and α-terpineol, which are responsible for the oil’s known antimicrobial and medicinal properties (Carson, Hammer, & Riley, 2006). Unlike steam distillation which separates oil from the plant using vapor, maceration is a solvent extraction technique, where crushed COLLEGE OF ENGINEERING – CHEMICAL ENGINEERING DEPARTMENT 1 4 Chemical Process Laboratory CHE120.1 plant material is submerged in a carrier oil at mild temperatures to allow diffusion of the volatile compounds from the plant matrix into the solvent (Sarker, Nahar, & Kumarasamy, 2006). The mechanism driving the extraction is the concentration gradient between the high concentration of essential oil inside the plant tissues and the lower concentration in the carrier oil, allowing passive diffusion while heat accelerates the breakdown of cuticle barriers and softens leaf tissues, promoting oil release. Coconut oil was specifically used as the carrier oil because of its non-polar, lipophilic nature which is highly compatible with terpene-based compounds, allowing efficient absorption while remaining chemically stable and resistant to oxidation during heating (Guenther, 1972). Two trials were performed using different volumes of coconut oil (200 mL and 150 mL), keeping the mass of melaleuca leaves constant at 50 g. The leaves were crushed to increase surface area and submerged in the carrier oil. After maceration, the mixtures were filtered to remove solid residues, and the infused oil obtained was measured to calculate percent yield. By comparing the yields from both trials, the experiment evaluates how carrier-oil volume influences solubilization capacity and extraction efficiency, demonstrating the principle that an increase in solvent volume may enhance the extraction of plant-derived aromatic compounds. Objectives This experiment aims to extract essential oils from Melaleuca leaves using a maceration process. Specifically, this experiment seeks to: 1. To extract essential oil from Melaleuca leaves using the maceration method with different volumes of carrier oils. 2. To determine the effect of varying volumes of carrier oils on the extraction efficiency and quality of the essential oil. 3. To compare the physical characteristics (such as color, aroma intensity, and viscosity) of the extracted oil for each volume of carrier oil used. 4. To calculate and compare the percent yield of Melaleuca-infused oil for each carrier oil volume variation. 5. To evaluate which volume of carrier oil is most efficient in extracting mint aromatic compounds based on the resulting aroma strength and yield. COLLEGE OF ENGINEERING – CHEMICAL ENGINEERING DEPARTMENT 1 5 Chemical Process Laboratory CHE120.1 Materials and Equipment Materials, Supplies, Glassware: 1. Melaleuca leaves 2. Coconut oil 3. Protective gloves 4. Lab coat 5. Beakers 6. Stirring rod 7. Graduated cylinder 8. Spatula 9. Petri dish 10. Filter cloth 11. Tissue or Clean Cloth for Pat Drying 12. Glass bottles or vials 13. Mortar and Pestle Equipment and Testing 1. Weighing scale Procedure 1. Preparation of Materials a. Gather all necessary materials including fresh melaleuca leaves, coconut oil (carrier oil), two clean glass containers with lids, weighing scale, measuring cylinder, mortar and pestle, strainer or cheesecloth, funnel, and labeled sample bottles. 2.Weighing of Plant Material a. Using an analytical or digital balance, weigh 50 g of fresh melaleuca leaves for Trial A. b. Weigh another 50 g of melaleuca leaves for Trial B. c. Record the mass for both trials. 3.Leaf Pre-Treatment a. Wash the leaves with clean water to remove dust and impurities. b. Pat dry using tissue or clean cloth to remove excess moisture. COLLEGE OF ENGINEERING – CHEMICAL ENGINEERING DEPARTMENT 1 6 Chemical Process Laboratory CHE120.1 c. Using a mortar and pestle, lightly crush the leaves to rupture the oil sacs and increase surface area, but do not grind into a paste. d. Observe the release of aroma, indicating that oil glands have opened. 4.Maceration Setup a. Place the crushed 50 g leaves into Container A. b. Pour 200 mL of coconut oil into Container A, ensuring the leaves are fully submerged. c. Gently stir using a clean glass rod to distribute the leaves evenly in the oil. d. Repeat the same process for Container B: place the second 50 g of leaves into the container and add 150 mL of coconut oil. 5.Sealing and Storage a. Seal both containers tightly to prevent contamination and oxidation. b. Label the containers as: Trial A: 50 g leaves + 200 mL coconut oil Trial B: 50 g leaves + 150 mL coconut oil c. Store the containers at room temperature, away from direct sunlight to avoid degradation of the volatile compounds. 6.Maceration Period a. Allow the plant–oil mixture to sit for 7 days , letting the essential compounds diffuse into the carrier oil naturally. b. Gently shake or swirl each container once daily to promote mixing and diffusion throughout the oil. 7.Filtration a. After maceration, open the containers and filter the infused mixture using a strainer or cheesecloth into a clean beaker. b. If fine particles remain, perform a second filtration using filter paper and funnel to ensure clarity of the final infused oil. 8.Volume Collection and Measurement a. Transfer the filtered infused oil to a graduated cylinder and measure the volume of oil obtained from each trial. b. Record the final volume. 9.Storage of Extracted Essential Oil a. Transfer the infused oils into glass bottles to protect them from light exposure and oxidation. b. Seal and label the bottles properly. COLLEGE OF ENGINEERING – CHEMICAL ENGINEERING DEPARTMENT 1 7 Chemical Process Laboratory CHE120.1 Analysis and Calculations A. Experimental Data for Essential Oil Extraction by Maceration Mass of Melaleuc a Leaves (g) Volume of Carrier Oil Used (mL) Final Infused Oil Recovere d (mL) Percent Yield to Carrier Oil (%) Yield per Gram of Leaves (mL·gβ» ¹ ) 1 50 200 75 37.50 1.50 2 50 150 50 33.33 1.00 Trial Where the Percent Yield and Volumetric Yield per gram of leaf are solved as follows: πΉππππ π£πππ’ππ πππππ£ππππ (ππΏ) Percent Yield (%)= πΌπππ‘πππ πππππππ πππ π£πππ’ππ (ππΏ) π₯ 100 Yield (mL·gβ» ¹)= πΉππππ π£πππ’ππ πππππ£ππππ (ππΏ) πππ π ππ ππππ£ππ (π) The results show that Trial A, which used a larger amount of coconut oil (200 mL), produced 75 mL of infused oil with a 37.50% yield, while Trial B (150 mL of carrier oil) produced 50 mL of infused oil with a 33.33% yield. In terms of efficiency relative to the leaves, Trial A yielded 1.50 mL of infused oil per gram of leaf, while Trial B yielded only 1.00 mL per gram. These results demonstrate that increasing the solvent volume improved extraction efficiency. A higher volume of carrier oil provides a greater capacity to dissolve plant constituents and maintain the concentration gradient necessary for mass transfer (Guenther, 1972). The difference in yield confirms the principle that maceration efficiency is influenced by both solvent volume and solute equilibrium limits. Qualitative observations also supported this trend: the infused oil from Trial A developed a stronger odor intensity, implying a higher concentration of extracted volatile terpenes such as terpinen-4-ol, γterpinene, and α-terpinene, which are known active constituents of melaleuca oil (Carson et al., 2006). However, the maceration method inherently produces infused oil rather than pure essential oil, since the volatile components remain dissolved in the carrier oil rather than being directly separated. Despite that limitation, the method is simple, low-cost, and does not require specialized distillation equipment. COLLEGE OF ENGINEERING – CHEMICAL ENGINEERING DEPARTMENT 1 8 Chemical Process Laboratory CHE120.1 Several factors may have influenced the extraction yield. First, because no heat was applied, diffusion was slower compared to heatassisted infusion methods, potentially resulting in incomplete extraction. Second, oil absorbed by plant material during filtration likely reduced the measurable recovered volume. Third, leaves were used in their natural state; higher yield might have been achieved by slightly crushing or grinding the leaves to increase surface area (Baser & Buchbauer, 2015). Additionally, some infused oil may remain trapped within the plant matrix after pressing or straining, introducing unavoidable extraction loss. B. Comparison of Physical Characteristics of Extracted Essential Oil at Different Carrier Oil Volumes Parameter/ Observation Sample 1 (200 mL Carrier Oil) Sample 2 (150 mL Carrier Oil) Color Dark green Darker green; more concentrated color due to lower dilution Aroma Intensity Mild to moderate aroma; lighter scent due to higher dilution of essential oil in the carrier oil Strong and noticeable herbal aroma; scent is more concentrated and lasts longer Thinner consistency Slightly thicker Appears to have a larger volume, but essential oil concentration is lower Appears denser because the essential oil is more concentrated in the smaller carrier volume Viscosity(feel application) during Yield Appearance Based on the observations, the essential oil extracted using 150 mL of carrier oil (Sample A) demonstrated darker color, stronger aroma intensity, and thicker viscosity compared to the sample extracted using 200 mL (Sample B). This happens because using a smaller volume of carrier oil increases the concentration of the extracted compounds, making the oil more potent in terms of scent and color. Meanwhile, the higher carrier oil volume (200 mL) results in more dilution, leading to a little lighter color, weaker aroma, and thinner texture. COLLEGE OF ENGINEERING – CHEMICAL ENGINEERING DEPARTMENT 1 9 Chemical Process Laboratory CHE120.1 This indicates that carrier oil volume directly affects the quality and concentration of the essential oil extract, less carrier oil results in a more concentrated output, while more carrier oil dilutes the extract. Market Studies The global essential oils market is rapidly expanding as consumers increasingly shift toward natural, plant-derived, and therapeutic wellness products. According to Fortune Business Insights (2024), the global essential oils market was valued at USD 9.62 billion in 2023 and is projected to reach USD 15.33 billion by 2030, driven by rising consumer interest in aromatherapy, massage therapy, and natural remedies. Melaleuca (tea tree) oil, known for its antimicrobial and soothing properties, is among the most in-demand essential oils in the personal care and wellness sector. The use of essential oils in massage is also increasing due to the growing popularity of spa services, physical therapy clinics, and holistic wellness centers (Grand View Research, 2024). The Asia-Pacific region is projected to be the fastest-growing market for essential oils due to increasing disposable income, rising spa and wellness facilities, and the region’s strong cultural use of plant-based remedies (Allied Market Research, 2023). In the Philippines, demand for natural and artisanal personal care products continues to increase alongside consumer preference for organic and locally sourced ingredients. This trend aligns with the market shift toward chemical-free and environmentally sustainable self-care solutions. Given these trends, the Melaleuca massage essential oil holds significant potential as a competitive product in both local and international markets. Its unique value proposition combines natural aroma, skinsoothing effects, and therapeutic benefits such as antimicrobial and antiinflammatory properties that appeals to health-conscious individuals, spa and wellness businesses, and consumers seeking plant-based massage oils. Highlighting that the product is locally sourced and handcrafted may further differentiate it within a market that values authenticity and sustainability. Furthermore, emphasizing the gentleness of coconut oil as the carrier oil enhances customer perception of the product's moisturizing and skinconditioning benefits. The growing preference for natural massage oils over COLLEGE OF ENGINEERING – CHEMICAL ENGINEERING DEPARTMENT 2 0 Chemical Process Laboratory CHE120.1 synthetic mineral oils in massage therapy creates additional market opportunities. By promoting product benefits such as relaxation, stress relief, and skin nourishment, Melaleuca massage essential oil can effectively position itself within the premium aromatherapy segment. Competition Analysis The essential oil and massage oil market is moderately competitive, with both established commercial brands and emerging small-scale producers targeting consumers seeking natural wellness products. Large international brands such as Young Living, doTERRA, and Plant Therapy dominate the premium segment by emphasizing product purity, therapeuticgrade claims, and strong branding supported by global distribution networks. However, these brands are priced significantly higher, making them less accessible to price-sensitive consumers in local markets. In the Philippines, there is also a strong presence of mid-range brands such as Human Nature and various local artisanal producers selling through online platforms such as Shopee, Lazada, and Facebook Marketplace. These local sellers typically offer more affordable options, but product differentiation is often weak due to similar generic packaging and lack of product education. In comparison, the Melaleuca massage essential oil offers a distinctive competitive advantage by being locally sourced, handcrafted, and infused using a natural maceration process, which may appeal to consumers who value authenticity and sustainability over mass-produced imports. Its combination of carrier coconut oil and Melaleuca leaves targets both wellness and skincare benefits, setting it apart from competitors whose oils are not formulated specifically for massage application. By focusing on product uniqueness, eco-friendly positioning, and strategic digital marketing, the product can successfully penetrate both niche markets, such as wellness centers and spas, and the rapidly growing online personal care sector. Appendices 1. Photo Documentation COLLEGE OF ENGINEERING – CHEMICAL ENGINEERING DEPARTMENT 2 1 Chemical Process Laboratory CHE120.1 Preparation of materials Melaleuca Leaves Pre-Treatment COLLEGE OF ENGINEERING – CHEMICAL ENGINEERING DEPARTMENT 2 2 Chemical Process Laboratory CHE120.1 Weighing of Melaleuca Leaves Maceration Set-up COLLEGE OF ENGINEERING – CHEMICAL ENGINEERING DEPARTMENT 2 3 Chemical Process Laboratory CHE120.1 Storage of Extracted Essential Oil COLLEGE OF ENGINEERING – CHEMICAL ENGINEERING DEPARTMENT 2 4 Chemical Process Laboratory CHE120.1 References Baser, K. H. C., & Buchbauer, G. (2015). Handbook of essential oils: Science, technology, and applications (2nd ed.). CRC Press. Carson, C. F., Hammer, K. A., & Riley, T. V. (2006). Melaleuca alternifolia (Tea Tree) oil: A review of antimicrobial and other medicinal properties. Clinical Microbiology Reviews, 19(1), 50–62. Guenther, E. (1972). The essential oils: Vol. 1. History, origin in plants, production, analysis. D. Van Nostrand. Sarker, S. D., Nahar, L., & Kumarasamy, Y. (2006). Microextraction and isolation of volatile oils: A practical approach. In Natural Products Isolation (pp. 123–128). Humana Press. COLLEGE OF ENGINEERING – CHEMICAL ENGINEERING DEPARTMENT 2 5 Chemical Process Laboratory CHE120.1 Lab Report No. 6 Fragrance Oil Extraction from Thevetia peruviana Flower and Cupressus sp. Leaves Name Vega, Maureen L. Members Galido, Sophia Jane N. Magangcong, Rania-Raihan M. Tuba, Charity C. COLLEGE OF ENGINEERING – CHEMICAL ENGINEERING DEPARTMENT 2 6 Chemical Process Laboratory Marfe CHE120.1 Group No. 2 Date November 6, 2025 Course Instructor Prof. Kristine Marohomsalic Laboratory Supervisor Iris T. Berangel Experiment No: 6 Experiment Title: Fragrance Oil Extraction from Thevetia peruviana Flower and Cupressus sp. Leaves Submitted Description of the Experiment The study investigates process establishment for fragrance oil production from cypress leaves (Cupressus sp.) using solvent extraction. Cypress leaves were selected as a source material due to their robust profile of naturally existing aromatic compounds that make them suitable to obtain fragrance. C. sempervirens essential oil has dominant compounds such as α-pinene (14.37%), δ-3-carene (15.54%), limonene (6.37%), α-terpinolene (4.66%), carvacrol methyl ether (4.00%), α-terpinyl acetate (5.86%), propanamide (5.48%), and totarol (21.50%) identified by GC–MS (Farasat et al., 2012). These various volatile fractions provided a woodsy and refreshing fragrance as noted, producing a strong natural option for use in perfumery, cosmetic, and aromatherapy formulations. Prior to the extraction of cypress leaves, yellow oleander (Thevetia peruviana) was initially utilized as a model source material to determine optimal extraction for cypress leaves. The same ethanol-based solvent system was used, and extraction time was varied (1, 2, and 3 hours) to identify the time of extraction that provided the optimal fragrance recovery. After the optimal extraction hour was determined for the yellow oleander, the same condition was used for cypress leaves to evaluate if the parameter was appropriate and process consistent across a different plant source. This also confirmed that established specifications relative to extraction were validate before extraction was completed on the primary source material. During the extraction stage, the chopped cypress leaves, along with ethanol, a well-known solvent due to its effectiveness for dissolving polar COLLEGE OF ENGINEERING – CHEMICAL ENGINEERING DEPARTMENT 2 7 Chemical Process Laboratory CHE120.1 and nonpolar aromatic compounds. Extraction relies on mass transfer, diffusion processes by which the volatile solutes will migrate out of the solid plant matrix phase to the liquid solvent phase, the driving force is the concentration gradient from the solid matrix. The process of mass transfer is governed by Fick's laws of diffusion, which states the solute depends on factors such as surface area, the properties of the solvent, and contact time to move into the solvent phase (Azzaz, et al., 2019 & McCabe, 2009 & Geankoplis, 2005). It is crucial to control factors like extraction temperature, extraction time, and the ratio of solid to solvent to maximize yield while minimizing solvent and energy usage. The extraction time ultimately determines how closely the system approaches an equilibrium state. A time that is too short will not allow the solutes enough time to diffuse from the solid plant matrix into the solvent phase, whereas, an extended time may "overload" the solvent with solute saturation, or solute compounds may start degrading (Sulaiman, et al., 2017). Thus, the time duration for the extraction step is critical in balancing efficiency and product quality. The experiment reflects a number of key principles of chemical engineering, including mass transfer operations, solubility equilibrium, and process optimization. In addition to facilitating technical efficiency, the utilization of ethanol supports green engineering principles, as ethanol is a safe, biodegradable, and recoverable solvent that is suitable for sustainable extraction processes. By selecting cypress leaves with a well-characterized composition of highly aromatic compounds, the study demonstrates both the technical feasibility and industrial potential of producing sustainable, natural fragrance oils as alternatives to synthetic products. Objectives 1. To extract aromatic compounds from cypress leaves (Cupressus sp.) using ethanol as a solvent under varying extraction times. 2. To determine the optimal extraction time that produces the most favorable extraction result based on observed yield and quality. 3. To apply the optimized extraction condition obtained from the preliminary yellow oleander (Thevetia peruviana) experiment to COLLEGE OF ENGINEERING – CHEMICAL ENGINEERING DEPARTMENT 2 8 Chemical Process Laboratory CHE120.1 cypress leaves and characterize the resulting extract. Materials and Equipment Materials, Supplies, Glassware: 1. Cleaned and dried cypress leaves 2. Cleaned and dried yellow oleander flower 3. Ethanol Equipment and Testing 1. Beakers (250 mL) 2. Graduated cylinders 3. Digital weighing scale 4. Filter paper or fine cloth 5. Glass bottles or vials 6. Stirring rod 7. Thermometer Procedure 1. Weigh 5g of finely chopped cypress leaves and transfer them into a clean beaker or flask. 2. Add 25 mL of ethanol to the beaker as the extraction solvent. 3. Subject the mixture to extraction for three different durations to determine the effect of time on yield and odor intensity: Trial 1 – 1 hour Trial 2 – 2 hours Trial 3 – 3 hours 4. Perform extraction by gentle heating with occasional stirring to ensure uniform mass transfer between the solid and solvent phases. 5. After each extraction period, allow the mixture to cool to room temperature. 6. Filter the mixture through filter paper or a clean cloth to obtain a clear aromatic extract. COLLEGE OF ENGINEERING – CHEMICAL ENGINEERING DEPARTMENT 2 9 Chemical Process Laboratory CHE120.1 7. Measure and record the volume of extract (mL) obtained for each trial. 8. Using a cotton ball or paper strip, evaluate the odor intensity and pleasantness of each extract on a 0–5 sensory scale, where 0 indicates no detectable odor and 5 indicates a very strong or pleasant scent. 9. Using the optimal extraction time determined from the yellow oleander trials, perform ethanol extraction of the cypress leaves sample following the same procedure. 10. Record all observations and measurements in the prepared data tables for further analysis and interpretation. COLLEGE OF ENGINEERING – CHEMICAL ENGINEERING DEPARTMENT 3 0 Chemical Process Laboratory CHE120.1 Analysis and Calculations A. EXTRACTING OF FRAGNANCE OIL USING Thevetia peruviana FLOWER Trial Extraction Time (hr) Volume of Extract (mL) Extract Yield (%) Odor Intensity Pleasantness (0–5) (0–5) 1 1 19 76.0 2 3 2 2 15 60.0 4 4 3 3 12 48.0 4 3 Table 1. Effect of Extraction Time on the Yield, Odor Intensity, and Pleasantness of Fragrance Oil Extracted from Thevetia peruviana Flower Where the Extraction Yield is solved as follows: Extraction Yield= ππππ’ππ ππ πΈπ₯π‘ππππ‘ ππππ’ππ ππ ππππ£πππ‘ ππ ππ π₯ 100 Effect of Extraction Time on Yield 80 Percent Yield 75 70 65 60 55 50 45 1 1,5 2 2,5 3 Extraction Time (hr) Figure 1. Relationship Between Extraction Time and Extract Yield for Fragrance Oil from Thevetia peruviana Flower The graph above shows the relationship of time in extraction with yield of fragrance oil from Thevetia peruviana flowers. The data shows a COLLEGE OF ENGINEERING – CHEMICAL ENGINEERING DEPARTMENT 1 Chemical Process Laboratory CHE120.1 decreasing trend of extract yield with increasing time. Specifically, yield was 76.0% after 1 hour, 60.0% after 2 hours and 48.0% after 3 hours. This decreased trend suggests an opposite effect of prolonged extraction on recovery of essential oils. During the initial period of time (1 hour), the solvent is able to effectively extract and dissolve the volatile aromatic compounds from the presence of the flower, yielding a large amount of extraction. But by leaving it to extract longer than this initial stage of time, the solvent is likely recovering less volatile compounds which may have evaporated or decomposed, and be sensitive to heat or oxidation. Additionally, prolonged extraction times may result in the co-extraction of non-volatile or resinous materials that could complicate and decrease the recovery of oil phase. Although the intensity of the odor was rated as slightly higher at the longer extraction times (4 out of 5), the pleasantness ratings did not markedly improve, meaning that stronger odor doesn't always mean it has a better smelling fragrance. In fact, an excessive extraction time may impart heavier or less desirable notes which lessened the overall quality of the fragrance. Consequently, if we consider both the quantitative yield and the qualitative sensory evaluation, the ideal extraction time to achieve the best extraction conditions (yielding a clean, floral aroma suitable for later formulations or products) was at 1 hour. The 1 hour of extraction time was hence selected as the standard extraction time for the Cupressus sp. leaves in subsequent experiments. EXTRACTING OF FRAGNANCE OIL USING Cupressus sp. LEAVES After establishing the most effective extraction condition for Thevetia peruviana flowers (iextraction time of 1 hour), the same parameters were utilized for the leaves of Cupressus sp. to determine if the same process could produce a fragrant and commercially viable oil from Cupressus sp. No separate optimization tests were conducted for Cupressus sp. because the objective was to evaluate the efficacy of the established optimal time to another plant material. The extraction produced (under the 1-hour extraction condition) a clear extract with a fresh, woody, and slightly balsamic fragrance associated with cypress oils. The fragrance intensity was 4 (moderately strong), with a pleasantness factor of 4, indicating that the optimized condition was effective in extracting the aromatic material present in Cupressus sp. leaves. These findings suggest that even by using a single extraction time, a product COLLEGE OF ENGINEERING – CHEMICAL ENGINEERING DEPARTMENT 2 Chemical Process Laboratory CHE120.1 can be obtained with useful sensory characteristics ready for further development. MARKET ANALYSIS The worldwide fragrance market continues to flourish as consumer demand for personal care products, home fragrance, and natural wellness products escalates. Fragrance is no longer reserved for luxury perfumes; fragrance is now incorporated into cosmetics, soaps, candles, and mother aromatherapy products, and can be found in multiple sources of inspiration. The total value of the global fragrance market was approximately USD 54 billion in 2024 and is expected to exceed USD 70 billion by 2030, driven by innovation, premiumization, and the demand for natural and sustainable ingredients (Statista, 2024). The movement toward sustainability and transparent ingredient sourcing has affected the fragrance industry, too. Consumers are now aware of the environmental impact of synthetic chemicals and the ethical issues surrounding raw material sourcing. This has resulted in an increased preference for essential oils and plant-based alternatives as ethicallysourced, natural, renewable raw ingredients. Specifically, Cupressus sp. oil is a natural, biodegradable, renewable aromatic ingredient sourced from low-impact distillation, which fits this consumer bracket. Sourcing Cupressus sp. oil is also an agricultural benefit to the local economy and promotes responsible forestry, increasing its appeal amongst brands and consumers who are concerned for the environment (Mordor Intelligence, 2024). Applications and Market Potential of Cupressus sp. Oil As a result of its unique woody scent and natural source, the fragrance oil from Cupressus sp. has viable applications in various industries. The distinctive woody scent has a calming and refreshing effect, making it an appropriate component of aromatherapy and an ingredient in essential oil blends, oils used in diffusers, or massage oils. Cupressus sp. is also appealing as a fragrance component, appearing as a natural additive to scented candles, scented soaps, perfumes, air fresheners, and personal care formulations for a consumer base that desires organic or plant-based scents. Because cypress oil is noted for its mild insect-repelling activity and some antimicrobial actions, it should also be considered for household or environmental scenting applications such as eco-friendly sprays and cleaning products. COLLEGE OF ENGINEERING – CHEMICAL ENGINEERING DEPARTMENT 3 Chemical Process Laboratory CHE120.1 Functional Fragrance and Product Integration Beyond fine perfumery, the application of Cupressus sp. oil extends to functional fragrances used in products such as body sprays, lotions, hair care, and home fragrances. Its subtle yet enduring scent provides a grounding and soothing effect, making it popular for wellness-oriented brands and aromatherapy products. The essential oil’s mild antimicrobial and deodorizing properties add value in personal care formulations, aligning with consumer demand for multifunctional and natural ingredients (GaloviΔová et al., 2023). This versatility allows fragrance manufacturers to utilize cypress oil not only as a perfuming agent but also as a component that enhances product performance. Regional Market Insights Market data suggests that the leading regions for fine and functional fragrances are the Asia-Pacific, Europe, and North America. Brands in these markets are developing niche and artisanal perfumes that highlight botanicals and sustainability. The olfactory profile of cypress oil is clean and natural, fitting well with the “green luxury” orientation employed by many niche fragrance houses. Furthermore, cypress oil can be blended with other widely used essential oils such as cedarwood, sandalwood, and bergamot, providing perfumers options when creating distinctive and harmonious compositions. Versatility and Industry Relevance The use of Cupressus sp. oil extends beyond the fine fragrance space into functional fragrances in body sprays, lotions, hair care, and home fragrance applications. The scent of cypress oil is subtle but long-lasting and lends itself well to grounding and calming effects, making it suitable to wellness focused brands and aromatherapy. The essential oil also complements formulation for personal care products with its mild antimicrobial and deodorizing properties, which attracts consumers looking for multifunctional and natural products. This versatility provides fragrance manufacturing companies with options to use cypress oil not just for perfuming, but as a component that enhances product efficacy. In summary, Cupressus sp. oil has strong potential as a sustainable, multi-purpose, and fragrant raw material in the global fragrance industry. The oil's fresh-woody scent profile fits well with contemporary fragrance philosophies that stress nature, simplicity, and authenticity in products. Heightening global interest in natural and sustainable products can be expected to facilitate the general expansion of the global market, with COLLEGE OF ENGINEERING – CHEMICAL ENGINEERING DEPARTMENT 4 Chemical Process Laboratory CHE120.1 cypress oil appearing to be an ingredient to help harmonize the bridging of old perfumery with the modern sustainable movement. COLLEGE OF ENGINEERING – CHEMICAL ENGINEERING DEPARTMENT 2 Chemical Process Laboratory CHE120.1 Appendices 1. Photo Documentation For Thevetia peruviana flower: o Collection of Raw Materials o Washing and Drying o Size Reduction o Preparation of Cupressus sp. Leaves and Ethanol Mixture COLLEGE OF ENGINEERING – CHEMICAL ENGINEERING DEPARTMENT 1 Chemical Process Laboratory CHE120.1 o Boiling of Mixture o Filtration o Storing COLLEGE OF ENGINEERING – CHEMICAL ENGINEERING DEPARTMENT 2 Chemical Process Laboratory CHE120.1 For Cupressus sp. Leaves: o Collection of Raw Materials o Size Reduction o Preparation of Cupressus sp. Leaves and Ethanol Mixture COLLEGE OF ENGINEERING – CHEMICAL ENGINEERING DEPARTMENT 3 Chemical Process Laboratory CHE120.1 COLLEGE OF ENGINEERING – CHEMICAL ENGINEERING DEPARTMENT 4 Chemical Process Laboratory CHE120.1 2. References Azzaz, N., Hamed, S., & Kenawy, T. (2019). Chemical studies on cypress leaves ( Cupressus sempervirens ) and their activity as antimicrobial agents. Al-Azhar Journal of Agricultural Research, 44(2), 100-109. https://doi.org/10.21608/ajar.2019.102641 Farasat, N., Zangeneh, M., Salimi-Sabour, E., Eidizade, A., & Golmohammadi, R. (n.d.). Antibacterial activities and chemical composition of essential oils of Cupressus sempervirens L. and C. funebris Endl. in Khuzestan, Iran. https://doi.org/10.22104/MMB.2023.6354.1114 Geankoplis, C. J. (2003). Transport processes and separation process principles (includes unit operations) (4th ed.). Prentice Hall. McCabe, W. L., Smith, J. C., & Harriott, P. (2005). Unit operations of chemical engineering (7th ed.). McGraw-Hill Education. Mordor Intelligence. (2024). Fragrance ingredients market – Growth, trends, and forecast (2024–2029). Retrieved from https://www.mordorintelligence.com/industry-reports/fragranceingredients-market Statista. (2024). Global fragrances market size from 2018 to 2030. Retrieved from https://www.statista.com/outlook/cmo/beautypersonal-care/fragrances/worldwide Sulaiman, I. S. C., Basri, M., Masoumi, H. R. F., Chee, W. J., Ashari, S. E., & Ismail, M. (2017). Effects of temperature, time, and solvent ratio on the extraction of phenolic compounds and the anti-radical activity of Clinacanthus nutans Lindau leaves by response surface methodology. Chemistry Central Journal, 11, 54. https://doi.org/10.1186/s13065-017-0285-1 COLLEGE OF ENGINEERING – CHEMICAL ENGINEERING DEPARTMENT 5
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