Antibacterial activity of extracts from <Emphasis Type="Italic">Zostera marina</Emphasis> against pathogens of <Emphasis Type="Italic">Apostichopus japonicus</Emphasis> skin ulceration disease |
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| Authors: | Yang Liu Guoliang Jiang Zhiqiang Wu |
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| Institution: | College of Marine Life Sciences, Ocean University of China, Qingdao 266003, P. R. China |
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| Abstract: | The purpose of this study was to investigate the antibacterial activity of extracts from Zostera marina against the pathogens of Apostichopus japonicus skin ulceration disease. When 95% ethanol (v/v) solvent was used to extract Zostera marina at 50°C, aqueous extract (ZA) showed obvious bacteriostatic effects on the tested bacterial strains (inhibition halo diameters
between 8.23 mm and 13.62 mm), whereas the ethyl acetate extract (ZE) was almost inactive. The minimal inhibitory concentration
(MIC) of ZA against four pathogens were homogeneous at 12.8 g L?1. ZA components were analyzed by thin layer chromatography (TLC) assay and six fractions were obtained. In another study,
the six fractions showed inhibitory effects against the tested bacteria while their functions seemed to counteract the ZA
activity. |
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| Keywords: | Zostera marina Apostichopusjaponicus skin ulceration disease antibacterial activity |
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