title: Identification of volatile components in Phyllanthus emblica L. and their antimicrobial activity.
abstract: The volatile components and in vitro antimicrobial activities of Emblica (Phyllanthus emblica L.) essential oils (EOs) obtained by hydrodistillation (HD-EO) and supercritical fluid extraction (SFE-EO) were investigated. The compositions of volatile compounds in these oils were tentatively determined by gas chromatography-mass spectrometry. The antimicrobial activites of these two extracts were investigated with microbiological tests against Gram-positive and Gram-negative bacteria and three pathogenic fungi. The main components of both oils were beta-caryophyllene, beta-bourbonene, 1-octen-3-ol, thymol, and methyleugenol. Both essential oils showed a broad spectrum of antimicrobial activity against all the tested microorganisms. Gram-positive bacteria were more sensitive to the investigated oils than Gram-negative bacteria. SFE-EO exhibited a higher antifungal activity compared to HD-EO.
authors.affiliation: College of Light Industry and Food Science, South China University of Technology, Guangzhou, The People's Republic of China.
authors.forename: Xiaoli
authors.initials: X
authors.lastname: Liu
authors.forename: Mouming
authors.initials: M
authors.lastname: Zhao
authors.forename: Wei
authors.initials: W
authors.lastname: Luo
authors.forename: Bao
authors.initials: B
authors.lastname: Yang
authors.forename: Yueming
authors.initials: Y
authors.lastname: Jiang
mesh_terms: D000900:Anti-Bacterial Agents / Q000302:isolation & purification / Q000494:pharmacology*; D000935:Antifungal Agents / Q000302:isolation & purification / Q000494:pharmacology*; D005054:Eugenol / Q000031:analogs & derivatives / Q000302:isolation & purification / Q000494:pharmacology; D005638:Fruit; D008826:Microbial Sensitivity Tests; D000442:Octanols / Q000302:isolation & purification / Q000494:pharmacology; D009822:Oils, Volatile / Q000302:isolation & purification / Q000494:pharmacology*; D029842:Phyllanthus emblica / Q000737:chemistry*; D010938:Plant Oils / Q000302:isolation & purification / Q000494:pharmacology*; D000081223:Polycyclic Sesquiterpenes; D012717:Sesquiterpenes / Q000302:isolation & purification / Q000494:pharmacology*; D013943:Thymol / Q000302:isolation & purification / Q000494:pharmacology
chemical_list: D000900:Anti-Bacterial Agents; D000935:Antifungal Agents; D000442:Octanols; D009822:Oils, Volatile; D010938:Plant Oils; D000081223:Polycyclic Sesquiterpenes; D012717:Sesquiterpenes; C005223:methyleugenol; D013943:Thymol; D005054:Eugenol; C024714:caryophyllene; C542377:beta-bourbonene; C038844:1-octen-3-ol