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Assessment of antibacterial properties and the active ingredient of plant extracts and its effect on the performance of crucian carp (Carassius auratus gibelio var. E'erqisi, Bloch)

文献类型： 外文期刊

作者： Lu, Chunxia 1 ; Luo, Xiaoling 1 ; Luo, Ruifeng 1 ; Chen, Xia 1 ; Xing, Lijie 1 ; Tang, Zonggui 1 ; Li, Hongmin 1 ;

作者机构： 1.Xinjiang Acad Agr & Reclamat Sci, Minist Agr, Supervis & Testing Ctr Food Qual, Shihezi 832000, Peoples R China

关键词： plant extracts;UPLCMS;MS;Aeromona hydrophila;antibacterial property;crucian carp (Carassius auratus gibelio var;E'erqisi;Bloch)

期刊名称：JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE （ 影响因子：3.638； 五年影响因子：3.802 ）

ISSN： 0022-5142

年卷期： 2013 年 93 卷 4 期

页码：

收录情况： SCI

摘要： BACKGROUND: In this study, the antibacterial properties and active ingredient of plant extracts and its effect on the performance of crucian carp (Carassius auratus gibelio var. E'erqisi, Bloch) were assessed. RESULTS: The transmission electron microscopy and flow cytometric analysis showed that the antibacterial activity of plant extracts is due to the disruption of the cell membrane and the leakage of cytoplasmic contents. The UPLCMS/MS analysis showed that the contents of gallic acid, ()epigallocatechin, (+)catechin, ()epigallocatechin gallate, ()epicatechin gallate, aloeemodin, rhein, emodin, chrysophanol, and physcion, were 5.27%, 3.30%, 1.08%, 19.32%, 5.46%, 0.23%, 0.56%, 1.28%, 0.75% and 0.39% in plant extracts, respectively. Results of feeding experiment showed that feeding crucian carp with 1.0% and 2.0% plant extracts significantly enhanced specific growth rate, serum total protein, lysozyme, catalase and superoxide dismutase activities, and decreased the feed conversion rate, malondialdehyde contents and the mortality rate (P < 0.05). CONCLUSION: It can be concluded that plant extracts added to fish feed can act as natural antimicrobial and immunostimulants to prevent pathogenic infection, enhance immune response, and promote growth of the fish. (c) 2012 Society of Chemical Industry

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