文献类型： 外文期刊
作者： Wang, J. Q. 1 ; Yang, F. 1 ; Yang, L. 1 ; Liu, J. 1 ; Lv, Z. H. 1 ;
作者机构： 1.Chinese Acad Agr Sci, Feed Res Inst, 12 Zhongguancun South St, Beijing 100081, Peoples R China
关键词： microbial reduction; zearalenone; microorganism; detoxification
期刊名称：WORLD MYCOTOXIN JOURNAL （ 影响因子：3.353； 五年影响因子：3.108 ）
ISSN： 1875-0710
年卷期： 2018 年 11 卷 4 期
页码：
收录情况： SCI
摘要： Zearalenone (ZEA) has a strong reproductive toxicity. Reducing and eliminating ZEA from food and feed is of great significance. The aim of the present study was to screen bacteria for reduction of ZEA. A pure culture of strain ZJ-2016-1, identified as Lysinibacillus sp. by 16S rRNA gene sequence analysis methods, was isolated from chicken large intestine digesta and showed to be effective in eliminating ZEA; 32 mu g/ml of ZEA in Luria-Bertani medium was completely removed within 48 h by whole cells of ZJ-2016-1. Heating treatment significantly reduced the removal rate of ZEA from 95.8 to 10.4% in the culture supernatant, suggesting that the microbial reduction of ZEA was likely enzymatic. The optimal conditions for the microbial reduction of ZEA by ZJ-2016-1 included temperature of 37 degrees C and pH of 7.0. To sum up, these results indicated that the Lysinibacillus strain is a promising bacterium resource for reducing ZEA, and its genes and enzymes involved in microbial reduction of ZEA should be further explored.
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