Chemical composition and antimicrobial activities of persimmon (Diospyros kaki) leaf extracts

摘要

The chemical composition of Persimmon leaves was determined by gas chromatography-mass spectrometry (GC-MS) and the antimicrobial activities of different polar extracts (distilled water, ethanol, ethyl acetate, petroleum ether and n-hexane) were studied. In total, 72 compounds (alkanes, alcohols, aldehydes, esters, acids, phenols, flavonoids, ethers, amides, coumarins, phytosterols and ketones) were identified in five extracts [water, ethanol (95%), ethyl acetate, petroleum ether, or n-hexane]. The various extracts differed in their inhibitory acivity against 5 bacteria and 14 fungi and the effects were concentration dependant.