tecnological data on "LUTEIN"

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ORYZA OIL & FAT CHEMICAL CO., LTD.

L U T E I N

              

AMD Prophylaxis

Cataract Prophylaxis

Anti-Oxidative Effect

LUTEIN-P80

LUTEIN-P40

LUTEIN-L8

ORYZA OIL & FAT CHEMICAL CO., LTD.

                      ver.  2.0TS

        

LUTEIN CATALOG ver.2.0 TS

L U T E I N

     Health Food Ingredients

for human eyes

1.

Introduction

IT (Information Technology) has become a popular term everywhere.

However, in recent years, children in elementary school to teenagers in junior high school classes are straining their eyes by using electronic games, cellular phones and personal computers for the Internet.

Deterioration of the visual acuity is advancing especially in junior high school and high school students.

As the relationships between the roles of lutein and zeaxanthin and age-related macular degeneration (AMD), which is the primary cause of blindness, have been increasingly indicated by recent studies, more and more people have begun to incorporate these carotinoids, which are antioxidant nutrients, into their diet.

The product introduced here is a health-promoting dietary supplement, rich in lutein and zeaxanthin, extracted from marigold.

2.

What are lutein and zeaxanthin?

Carotinoids are a group of dyes widely distributed in animals and plants. Lutein is a typical xanthophyll in carotinoids. Zeaxanthin is a carotinoid that is always found with lutein.

Carotinoids have strong activities to eliminate active oxygen and are useful for the prevention of lifestyle-related disorders.

Furthermore, studies in the United States have shown that only lutein and zeaxanthin are present in the eye among the several hundred carotinoids that are known today.

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LUTEIN CATALOG ver.2.0 TS

3.

Structures of lutein and zeaxanthin

  1 ) Structures

OH

HO

Lutein

OH

HO

2 ) Molecular formula

Zeaxanthin

LUTEIN

ZEAXANTHIN

Molecular formula

40

56

2

40

56

2

4.

To stop aging of the eye

Prevention of AMD and cataract

Molecular weight

568.88

568.88

An extraocular muscle

Melting point

190 ℃

207 ℃

Zinn’s zonule

Lens

Cornea

Pupil

Ciliary body

Iris

Vitreum

Retina

Optic nerve

Macula: where Lutein and

Zeaxanthin are present

Fig.1. Structure of eye

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LUTEIN CATALOG ver.2.0 TS

Cataracts and retinal detachment are disorders of the eye associated with aging, but agerelated macular degeneration (AMD) is increasing in recent years.

This disorder occurs first in one eye, progresses slowly without pain, extends to both eyes in time, and causes blindness in the worst case.

As no treatment, surgical or chemical, effective for this condition has been developed to date, many studies of its prevention or measures to delay of its progression are in progress.

AMD is considered to occur due to oxidative degeneration of cells in the macular region by active oxygen, which increases as lutein decreases in the macular region with aging.

In cataracts, the visual acuity is reduced as the lens becomes opaque, and this opacity is also caused by active oxygen.

Thus, decreases in lutein and zeaxanthin are considered to be related to aging of the eye.

It has also been discovered by Dr.Snoddary of Harvard University that lutein absorbs blue light, which is likely to damage the eye.

5.

Lutein esters bioavailability

In the same manner that triglycerides and fats are hydrolyzed in the digestive tract to the corresponding fatty acids in order to be absorbed, lutein esters are also hydrolyzed to fatty acids liberating free lutein, which is then absorbed into the blood serum.

Certain enzymes known as esterases and lipases and perform hydrolysis of esters in digestive track.

These enzymes are produced in the pancreas by a mechanism that is regulated by the presence of fat in the stomach and duodenum, so as in the case of free lutein, the bioavailability of lutein Esters is also enhanced by the fat in foods (Roodenburg et al. 2000).

Lutein Ester    Free Lutein     Free Lutein In Serum

These are studies on the bioavability of lutein esters that show a good incorporation of serum when lutein esters are supplemented.

The following graph shows the lutein assimilation in blood plasma,or bioavaility, obtained in these studies.

The curve in short broken line corresponds to the results reported by Berendschot where eight subjects took a daily dose of 10 mg of (as lutein esters) for a period of 84 days

(Berendschot et al. 2000).

The curve in long broken line corresponds to Granado’s study where subject supplemented their diets with 15 mg of lutein (in the form of lutein esters) per day for a period of 112 days

3

        

LUTEIN CATALOG ver.2.0 TS

(Granado et al. 1998)

The line curve corresponds to Landrum’s study where 2 subjects supplemented their diets with 30 mg of lutein (in the form of lutein esters) per day for a period of 140 days (Landrum et al. 1997)

Metabolism and Absorbed of Lutein Ester

30mg/day Supplementation of Lutein Ester  

15mg/day Supplementation of Lutein Ester  

10mg/day Supplementation of Lutein Ester   stop

3

2.5

2

1.5

stop stop

1

0.5

start

0

0 20 40 60 80 100 120 140 160 180 200

Days

Berendschot et al., LOVS 41 (2000) 3322 - 3326

Granado et al., Br J Nutr 80 (1998) 445 - 449

Landrum et al., Exp. Eye Res. 65 (1997) 57 - 62

Fig.2. Absorbed dose of Lutein Esters

From these reports it is possible to summarize the following

1) Lutein ester is a good source of lutein since both studies show that high levels of lutein in blood plasma are obtained in relatively short times (7-10 days).

2) The concentration of lutein in plasma depends on the amount of lutein ester supplemented

3) Lutein concentration remains at its highest level as long as supplementation is maintained

4

        

LUTEIN CATALOG ver.2.0 TS

4)nce supplementation stop , basal levels of lutein are reached in a period 15 to 20 days .

6.

Lutein versus lutein ester bioavailability

Free lutein from the lutein diester formulation appeared in the peripheral circulation more quickly than the unesterified lutein formulation, and attained a higher peak concentration. The mean AUC (Areas under the serum lutein concentration time curves from 0 to 408h) of lutein diester formulation was 61.6% greater than that of unesterified lutein formulation.

Mean peak concentration for both lutein formulations was achieved at 32 h with considerable variation among subjects. At this higher peak concentration, absorption of free lutein from the lutein diester formulation is two times greater than that of unesterified lutein formulation

(Fig.3.).

In the paired baseline adjusted AUC comparisons of the two lutein formulation for each individual, apparent absorption of free lutein from the lutein diester formulation was greater in

14 of the 18 subjects (Fig.4.).

These data show that bioavailability of the lutein diester formulation is greater than that of unesterified lutein formulation.

* P=0.03

Lutein diester

Lutein

Time(h)

Phylips E. Bowen et al., J. Nutr. 132 : 3668 - 3673, 2002

Fig.3. Lutein and Lutein Ester Bioavailability

(Serum lutein concentration)

        

LUTEIN CATALOG ver.2.0 TS

□  Lutein Diester

■ Lutein

Subject Number

Phylips E. Bowen et al., J. Nutr. 132 : 3668 - 3673, 2002

Fig.4. Lutein and Lutein Ester Bioavailability(AUC)

7.

Lutein ester deposition in maculr pigment

Two paper were referred to have studied the bioavailability of lutein ester (Landrum et al.

1997, and Berendschot et al. 2000). In both paper, not only the levels of lutein in serum reached by the supplementation of lutein ester were studied, but also how this lutein in serum was deposited in the macula. For example in Landrum’s paper using a heterochromatic flicker photometer for macular pigment optical density measurements it was found 50% increase in optical density as shown in the following graph.

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LUTEIN CATALOG ver.2.0 TS

3

2.5

2

30mg/day Supplementation of 

Lutein Ester  for 140 days  

0.90

1.5

1

      

Optical density 

0.5

0

0.60

200

0.55

40 80

Days

120 160

Landrum et al., Exp.Eye Res. 65 (1997) 57 - 62

Fig.5. Absorbed of Lutein Ester and Lutein Ester Deposit in

Mocular Pigment

Berendschot reports similar evidence to Landrum’s report by using a lower than 30mg/day supplementation of lutein Ester and using scanning laser ophthalmoscopy and reflectance spectral analysis for measuring the macular pigment optical density.

These two paper prove that lutein ester not only is well absorbed into the human body, but also that the lutein provided by lutein ester supplementation is well deposited into the macular pigment.

8.

Lutein intake

Spinach contains a high level of lutein. Although broccoli, Brussels sprouts, and green beans also contain lutein, spinach is considered to be the best food in terms of the ease and efficiency of lutein intake.

A recommended daily lutein intake for prevention of AMD is reported to be 6 mg/day (as free lutein).

To eat this quantity of lutein from spinach alone, one must eat 5 salad bowls of spinach

7

        

LUTEIN CATALOG ver.2.0 TS according to an estimation in the United States. This is impractical.

This lutein intake may be easily achieved by the use of a supplement.

9.

Recommended intake of lutein extracted from marigold

The product introduced here has a very high lutein content, which is 80% as lutein ester

(40% as free lutein). An intake of 15-20 mg/day is recommended particularly for prevention of AMD.

10.

Stability of lutein ester

The change in content of lutein ester dose not occur at room temperature and original

Packing. Data comes from the study of LUTEIN-P80 kept in original packing and room temperature.

120

100

80

60

40

20

0

0 150 180 30 60 90

Days

120

Fig.6. Longtime Stability of Lutein Ester

11. Acute toxicity and safety

11-1.

Residual agricultural chemicals

Assayed Items

BHC

DDT

Aldrin

Dieldrin

Endrin

Diazinon

Parathion

Results

Not Detected

Not Detected

Not Detected

Not Detected

Not Detected

Not Detected

Not Detected

Detection Limits

0.02ppm

0.02ppm

0.01ppm

0.01ppm

0.01ppm

0.05ppm

0.05ppm

Assay Method

Gas Chromatography

Gas Chromatography

Gas Chromatography

Gas Chromatography

Gas Chromatography

Gas Chromatography

Gas Chromatography

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LUTEIN CATALOG ver.2.0 TS

Test trustee : Japan Food Research Center Foundation

Date of issue of the result report: January 24,2003.

Research issue number : 302120606-001

11-2.

Acute toxicity

Five weeks old mice were orally given LUTEIN-P80 (5000mg/kg) and then fed a laboratory chow for two weeks. No toxic effect were observed, thus the LD50 (mouse) is more than

5000mg/kg

12. Practical applications of lutein

  

Applications

Snacks

Fermentative

Foods

Examples

Dried Foods

Soup, Dried noodles, Seasoning, Pasta, Cereal, Oatmeal, and Topping for pizza

Confectionery Candies, Gum, Cookies, Pudding, Jelly, Yogurt, Chocolate

Rice crackers, Cookies, and Wafers

Bread and Yogurt

Drinks

Others

Protein Shakes , Nutritional Drinks

Health foods, Nutraceutical foods, and Functional foods

13. Packaging

   LUTEIN -P80

(powder)

    

1kg

Interior packaging

: aluminium-coated plastic bag

   

Exterior packaging

: cardboard box

LUTEIN -P40   (powder)

    

1kg

Interior packaging

: aluminium-coated plastic bag

    Exterior packaging : cardboard box

LUTEIN-L8 (water soluble liquid type)

5 kg Interior packaging

: cubic polyetylene container

   

Exterior packaging

: cardboard can

14. Storing Method

Store in cool, dry place.

Avoid humidity.

15. Expression of lutein

Marigold Extract

9

        

LUTEIN CATALOG ver.2.0 TS

Lutein Ester

※  Please refer to your nation’s standards.

PRODUCT STANDARD

PRODUCT NAME

LUTEIN-P80

(FOOD)

This product is extracted and refined from marigold, the flower of Tagetes erecta (Compositae).

It includes more than 80.0 % of lutein esters.

Appearance

Content of Lutein (free)

Content of Lutein Esters

It is yellow orange powder with slightly unique smell.

Min. 40.0 %

    

(HPLC)

Min. 80.0 % (Content of Lutein (free) 2)

Content of Total Carotenoid (free)

Content of Total Carotenoid Esters

Min. 42.5 %      (UV)

Min. 85.0 % (Content of Total Carotenoid (free) 2)

Loss on Drying   Max. 5.0 % (1g, 40 ℃ Reduced Pressure,

    

Posphprus Pentaoxide, 4h)

Purity Test

(1) Heavy Metals

Moulds and Yeasts

Max. 10 ppm

   

(The Japanese Standards for Food Additives)

(2) Arsenic

Max. 1

  ppm (Standard Methods of Analysis in Food Safety

                                  

Regulation)

Standard Plate Counts

Max. 1 10 3 cfu/g

  

(Analysis for Hygienic Chemists)

Max. 1 10 2 cfu/g

  

(Analysis for Hygienic Chemists)

Coliforms

Negative

  

(Analysis for Hygienic Chemists)

Composition

    

Ingredients

Marigold extract

Natural tocopherols

Contents

99.75 %

0.25 %

10

        

LUTEIN CATALOG ver.2.0 TS

Total 100.00 %

PRODUCT STANDARD

PRODUCT NAME

LUTEIN-P40

(FOOD)

This product is extracted and refined from marigold, the flower of Tagetes erecta (Compositae).

It includes more than 40.0 % of lutein esters.

Appearance

Content of Lutein (free)

Content of Lutein Esters

It is yellow orange powder and has slightly unique smell.

Min. 20.0 %

    

Min. 40.0 %

(HPLC)

(Content of Lutein (free) 2)

Content of Total Carotenoid (free)

Content of Total Carotenoid Esters

Loss on Drying

Min. 21.0 % (UV)

Min. 42.0 % (Content of Total Carotenoid (free) 2)

  Max. 5.0 % (1g, 40 ℃ Reduced Pressure,

   Posphprus Pentaoxide, 4h)

Purity Test

(1) Heavy Metals

(2) Arsenic   Max. 1   ppm (Standard Methods of Analysis in Food Safety

                                   Regulation)

Standard Plate Counts   Max. 1 10 3 cfu/g     (Analysis for Hygienic Chemists)

Moulds and Yeasts

  Max. 10 ppm     (The Japanese Standards for Food Additives)

  Max. 1 10 2 cfu/g (Analysis for Hygienic Chemists)

Coliforms   Negative

Composition     

Ingredients

Marigold extract

Natural tocopherols

Total

(Analysis for Hygienic Chemists)

Contents

99.75 %

0.25 %

100.00 %

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LUTEIN CATALOG ver.2.0 TS

PRODUCT STANDARD

PRODUCT NAME

LUTEIN-L8

(FOOD)

This product is emulsifing liquid extracted and refined from marigold, the flower of Tagetes erecta

(Compositae). It includes more than 8.0 % of lutein esters.

Appearance It is orange liquid and has slightly unique smell.

Content of Lutein (free) Min. 4.0 %

     

(HPLC )

Content of Lutein Esters Min. 8.0 % (Content of Lutein (free) 2)

Purity Test

(1) Heavy Metals Max. 10 ppm

    

(The Japanese Standards for Food Additives)

(2) Arsenic Max. 1 ppm

    

(Standard Methods of Analysis in Food Safety

                                   

Regulation)

Standard Plate Counts Max. 1 10 3 cfu/g

     

(Analysis for Hygienic Chemists)

Moulds and Yeasts Max. 1 10 2 cfu/g

    

(Analysis for Hygienic Chemists)

Coliforms Negative

    

(Analysis for Hygienic Chemists)

Composition     

Ingredients

Marigold extract

Hydrogenated glucose syrup

Caprylic/capric acid triglyceride

Glycerin ester of fatty acid

Lecithin

Purified water

Total

Contents

10.0 %

40.0 %

12.4 %

8.0 %

1.6 %

28.0 %

100.0 %

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LUTEIN CATALOG ver.2.0 TS

ORYZA OIL & FAT CHEMICAL CO., LTD., striving for the development of the new functional food materials to promote your health.

From product planning to OEM

-

For any additional information or assistance, please contact :

ORYZA OIL & FAT CHEMICAL CO., LTD.

NO. 1, Numata Kitagata-cho, Ichinomiya-city, Aichi-pref.,

493-8001 JAPAN

Tel: +81 (0) 586 86 5141

Fax: +81 (0) 586 86 6191

URL/http : //www.oryza.co.jp/

E-mail : info@oryza.co.jp

* The contents of this catalogue may be changed without prior notice.

Established Date: July 8,2002

Revised Date: November 26,2003

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