Composition and antimicrobial activity of the essential oil of Actinidia macrosperma from China.
Actinidia macrosperma is a medicinal plant in China and has been well known for its attraction to cats and activities against leprosy and cancers. The compositions and the antimicrobial activity of its leaf oil were reported for the first time. The oil obtained by hydrodistillation and analyzed by GC and GC-MS, was characterized by the high content of monoterpenes. Linalool (48.14%) is the major component identified, followed by 1,2-dimethyl-lindoline (7.94%), linolenic acid methylester (6.57%) and (E)-phytol (5.29%). The antimicrobial activity of the oil was evaluated against four bacterial and three fungal species. The results showed that it exhibited a mild antibacterial activity against two Gram-positive bacteria (Staphylococcus aureus and Bacillus subtilis), a significant activity against Gram-negative bacteria (Escherichia coli), and no activity on Pseudomonas aeruginosa. The test fungi were more sensitive to the oil, with a MIC range of 0.78-1.56 microL mL(-1) than bacteria in the range which were significantly higher from 0.78 to 25.50 microL mL(-1).
Lu
Y
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Research Group for Medicinal Plant Resource and Phytochemistry, Department of Biology, College of Life Sciences, Zhejiang University, Hangzhou 310058, Zhejiang Province, PR China.
Zhao
Y P
YP
Wang
Z C
ZC
Chen
S Y
SY
Fu
C X
CX
D029042:Actinidia / Q000737:chemistry*; D002176:Candida albicans / Q000187:drug effects; D002681:China; D008401:Gas Chromatography-Mass Spectrometry; D008826:Microbial Sensitivity Tests; D009822:Oils, Volatile / Q000737:chemistry* / Q000494:pharmacology*; D018515:Plant Leaves / Q000737:chemistry; D011550:Pseudomonas aeruginosa / Q000187:drug effects
D009822:Oils, Volatile