Additional file 2: Table S2. Major constituents of essential oils of Hedychium coronarium from literature Origin Biological Plant Parts Major constituents References Antifungal and Fresh 1,8-cineole (41.42%), β-pinene (10.39%), α-terpineol 19 antibacterial rhizome (8.8%) Antifungal and Dried 1,8-cineole (37.44%), β-pinene (17.4%), α-terpineol antibacterial rhizome (6.7%) - Flower linalol, methyl jasmonate, eugenols, cis-jasmone, β- activities - - Japan 19 20 ionone, lactones Cuba - Flower (E)-β-ocimene (28.7%), linalool (19.3%), 1,8-cineole 21 (14.5%) China - - β-pinene (21.73%),1,8-cineole (11.8%), sabinene 22 (11.32%), Japan Flower linalool, methyl benzoate, cis-jasmone, eugenol, (E)- 23 isoeugenol, jasmin lactone, methyl jasmonate, methyl epi-jasmonate, indole, nitriles and oximes China - Flower myrcenol, linalool, β-caryophyllene, β-terpineol, benzyl 24 benzoate Brazil - Leaf β-caryophyllene (43.0%), caryophyllene oxide (12.1%), 25 β-pinene (11.6%,) ‘’ - Rhizome 1,8-cineole (34.8%), β-pinene (16.7%), α-terpineol ‘’ (13.1%) India Antibacterial Rhizome linalool (29.3 %), limonene (20.3 %), trans-m- 26 mentha,2,8diene (12.9 %), γ-terpinene (8.9 %) Polynesia - Rhizome β-pinene (24.8%) and 1, 8-cineole (40.2%) 27 India Antibacterial Rhizome 1,8-cineole (48.7%) 28 Mauritius - Rhizome α-muurolol (16.8%), α-terpineol (15.9%), 1, 8-cineole 29 (11.2%), Fijian - Rhizome α-pinene (10.6%), β-pinene (31.4%), 1,8-cineole 30 (55.9%) Fijian - Leaf β-pinene (53.6%), α-pinene (20.9%), 1,8-cineole (11.9%), β-caryophyllene (17.7%) 1 30 India Antioxidant Rhizome and trans-m-mentha-2,8-diene (25.2%), linalool (21.7%), α- 31 terpineol (10.9%) antibacterial China Antioxidant Rhizome β -trans ocimenone (28.05%), linalool (18.52%), 1,8- 32 cineole (11.35%) China Antimicrobial Leaf β-pinene (33.9%), -pinene (14.7%), 1,8-cineole 33 (13.3%), -elemene (11.0%), carotol (9.1%) larvicidal and antioxidant ‘’ Antimicrobial Rhizome 1,8-cineole (37.3%), β-pinene (23.0%), ‘’ -terpineol (10.4%) and -pinene (9.9%) larvicidal andantioxidant Brazil Anti- Rhizome Antitrypanocidal - 34 (12.0%), 𝛽-pinene (11.0%) trypanocidal ‘’ 1,8-cineole (31.7%), coronarin E (14.1%), 𝛼-terpineol Leaf caryophyllene oxide (43.9%), β-caryophyllene (12.1%) and caryophylladienol I (7.7%) Not known 2 34