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Volatile Chemical Composition, Antibacterial and Antifungal Activities of Extracts from Different Parts of Globba schomburgkii H ook.f.
Author(s) -
Doungchawee Jeerapat,
Kulsing Chadin,
Suekaew Naruemon,
Na Pombejra Sarisa,
Chavasiri Warinthorn,
Plabutong Napasawan,
Thammahong Arsa,
Khotavivattana Tanatorn
Publication year - 2019
Publication title -
chemistry and biodiversity
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.427
H-Index - 70
eISSN - 1612-1880
pISSN - 1612-1872
DOI - 10.1002/cbdv.201900057
Subject(s) - rhizome , terpenoid , labdane , chemistry , antimicrobial , antibacterial activity , caryophyllene , dichloromethane , composition (language) , antifungal , traditional medicine , terpene , extraction (chemistry) , diterpene , botany , food science , essential oil , organic chemistry , bacteria , stereochemistry , biology , microbiology and biotechnology , solvent , medicine , linguistics , genetics , philosophy
Globba schomburgkii H ook.f. is an ornamental plant that has recently found increasing demand as cut flowers, hence generating a significant number of by‐products from different parts of the plant. To investigate the further applications of these by‐products, twelve crude extracts from rhizomes, stalks, leaves, and flowers were prepared by serial exhaustive extraction. The volatile composition of these extracts was analyzed by GC/MS; a total of 89 compounds were identified, most of which were sesquiterpenes as well as some labdane‐type diterpenes. The antimicrobial activities of these extracts were evaluated, revealing a correlation between the terpenoid content and antibacterial activities. Notably, the dichloromethane extracts of rhizomes and flowers, which contained the highest amount of terpenoids (e. g., α ‐gurjunene, guaia‐9,11‐diene, γ ‐bicyclohomofarnesal, β ‐caryophyllene, and caryophyllene oxide), displayed the most prominent antibacterial activities. This work demonstrates the potential use of the crude extracts from G. schomburgkii as natural antibacterial ingredients for pharmaceutical and other applications.