Biodetoxification of both AFB1 and ZEN by Bacillus subtilis ZJ-2019-1 in gastrointestinal environment and in mice
文献类型： 外文期刊
作者： Wu, Jianwen 1 ; An, Wei 1 ; Wang, Zhenlong 1 ; Gao, Boquan 1 ; Wang, Jiaxue 1 ; Zhao, Ya 1 ; Han, Bing 1 ; Tao, Hui 1 ; Guo, Yaping 1 ; Wang, Jinquan 1 ; Wang, Xiumin 1 ;
作者机构： 1.Chinese Acad Agr Sci, Inst Feed Res, Beijing 100081, Peoples R China
2.Minist Agr & Rural Affairs, Key Lab Feed Biotechnol, Beijing, Peoples R China
关键词：
Biodegradation; Aflatoxin; Zearalenone;
期刊名称：MYCOTOXIN RESEARCH （ 影响因子：3.1； 五年影响因子：3.1 ）
ISSN： 0178-7888
年卷期： 2025 年 41 卷 2 期
页码：
收录情况： SCI
摘要： Aflatoxin B1 (AFB1) and zearalenone (ZEN) are the most prevalent mycotoxins in production, posing a serious threat to human and animal health. Therefore, it is very urgent to find a safe and efficient method for the biodegradation of these mycotoxins. Our previous study demonstrated that Bacillus subtilis ZJ-2019-1 moderately degrades both mycotoxins in vitro and ZEN in female gilts. In this study, we assessed the effect of B. subtilis ZJ-2019-1 on AFB1 and ZEN degradation in naturally moldy corn gluten meal in a gastrointestinal environment while also evaluating the cytotoxicity of degradation products using the Cell Counting Kit-8 (CCK-8) assay. The efficacy of B. subtilis in degrading mycotoxins was further evaluated by orally administering 5 mg/kg AFB1 and 50 mg/kg ZEN to mice, followed by treatment with B. subtilis ZJ-2019-1 for 15 d. The results showed that B. subtilis ZJ-2019-1 moderately degraded both AFB1 and ZEN present in naturally moldy corn gluten meal in simulated small intestinal fluids, with degradation rates reaching 14.71% for AFB1 and 19.53% for ZEN respectively. Following degradation by B. subtilis ZJ-2019-1, the toxicity of resulting products from both AFB1 and ZEN decreased by 11.68-46.41% and 42.62-59.25%, respectively. Moreover, oral administration of B. subtilis ZJ-2019-1 exhibited remarkable detoxification effects on AFB1 and ZEN in mice, as evidenced by significant restoration of abnormal serum biochemical indices (including aspartate aminotransferase/alanine transaminase, alkaline phosphatase, total cholesterol, etc.) and alleviation of liver, intestine, and uterine damage caused by mycotoxins in mice. These findings indicate that B. subtilis ZJ-2019-1 possesses the ability to moderately degrade both AFB1 and ZEN, making it a promising candidate for biodegrading multi-mycotoxin contaminants in food and feed.
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