Chemical Compositions, and Antimicrobial and Mosquito Larvicidal Activities of Essential Oils from Four SyzygiumSpecies Syzygium formosum(Wall.) Masam., S. syzygioides(Miq.) Merr. & L.M. Perry, S. megacarpum(Craib) Rathakr. & N.C. Nair, and S. chantaranothaianumW.K. Soh & J. Parn

Autor: Huong, Le Thi, Phu, Hoang Vinh, Hung, Nguyen Huy, Duc Giang, Le, Dai, Do Ngoc, Hop, Nguyen Quang, The Son, Ninh
Zdroj: Journal of Essential Oil Research; May 2024, Vol. 36 Issue: 3 p214-221, 8p
Abstrakt: ABSTRACTChemical compositions in the leaf essential oils of four Syzygiumspecies were first identified by the GC-FID/MS analysis. Monoterpene hydrocarbons (39.6-51.1%), and sesquiterpene hydrocarbons (27.0-37.8%) were the main chemical classes in S. formosumand S. syzygioidesleaf oils, whereas sesquiterpene hydrocarbons (83.0-83.8%) were predominant in S. Megacarpumand S. chantaranothaianumleaf essential oils. Bicyclogermacrene (9.1-37.0%) was the principal compounds in these essential oils. All the tested essential oils with the MIC values of 16-128 µg/mL were comparable to the positive control streptomycin against Gram-positive bacteria Staphylococcus aureusand Bacillus cereus, and Gram-negative bacterium Pseudomonas aeruginosa. The leaf essential oils of S. formosum, S. syzygioides, and S. chantaranothaianumwith the MIC values of 16-128 µg/mL were comparable to the positive control cycloheximide against the yeast Candida albicans. Four samples also exhibited good larvicidal activity against the mosquito Aedes aegyptiwith the 24-h and 28-h LC50values of 25-40 µg/mL
Databáze: Supplemental Index