Microbial reduction of zearalenone by a new isolated Lysinibacillus sp. ZJ-2016-1

文献类型: 外文期刊

第一作者: Wang, J. Q.

作者: Wang, J. Q.;Yang, F.;Yang, L.;Liu, J.;Lv, Z. H.

作者机构:

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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