Chemical composition and biological activities of hedychium coccineum buch.-ham. ex sm. essential oils from kumaun hills of uttarakhand
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Date
2022
Journal Title
Journal ISSN
Volume Title
Publisher
Molecules
Abstract
Hedychium coccineum Buch. Ham. ex Sm. is a perennial rhizomatous herb belonging to
the family Zingiberaceae. The aim of the present study was to compare the chemical composition
and biological activities of H. coccineum rhizome essential oil (HCCRO) and H. coccineum aerial part
essential oil (HCCAO). The plant material was subjected to hydro-distillation using Clevenger’s
apparatus in order to obtain volatile oil and analyzed for its chemical constituents using GC-MS.
The comparative study of the rhizome and aerial part essential oils of H. coccineum displayed that
(E)-nerolidol (15.9%), bornyl acetate (13.95%), davanone B (10.9%), spathulenol (8.9%), and 1, 8-cineol
(8.5%) contributed majorly to the HCCRO, while 7-hydroxyfarnesen (15.5%), -farnesene (11.1%),
-pinene (10.9%), spathulenol (7.7%), and -pinene (6.8%) were present as major constituents in
the HCCAO. Both the essential oils were studied for their biological activities, such as nematicidal,
insecticidal, herbicidal, antifungal, and antibacterial activities. The essential oils exhibited significant
nematicidal activity against Meloidogyne incognita, insecticidal activity against Spodoptera litura, and
moderate herbicidal activity against R. raphanistrum sub sp. sativus, and good antifungal activity
against Fusarium oxysporum and Curvularialunata. Essential oils were also tested for antibacterial
activity against Staphylococcus aureus and Salmonella enterica serotype Typhi. Both oils showed good to
moderate activity against the tested pathogens. The significant nematicidal, insecticidal, herbicidal,
antifungal, and antibacterial activities of both the essential oils might be helpful for the development
of environmentally friendly pesticides that could be an alternative to synthetic pesticides in the future.
Description
Keywords
natural products; bioactive compounds; (E)-nerolidol; 7-hydroxyfarnesen; biological activities