乳酸菌的抗真菌活性及其在麦芽粒镰刀菌毒素降解中的应用

Antifungal activity of lactic acid bacteria and their application for Fusarium mycotoxin reduction in malting wheat grains

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中文摘要:为了寻找减少麦芽粒中镰刀菌毒素的策略,本文研究了乳酸菌(LAB)对麦芽粒中所含的脱氧雪腐镰刀菌烯醇(DON)、玉米赤霉烯酮(ZEN)、T-2和HT-2毒素处理的效果。结果发现,用乳酸杆菌ICTU05.6、乳酸片球菌ICTU05-7和戊糖片球菌KTU05-8、KTU05-09及KTU05-10菌株处理导致麦芽粒中ZEN、DON、T-2和HT-2毒素浓度分别降低了23%、34%、58%和78%。此外,LAB菌株的测试表明,乳酸菌具有广谱抗真菌活性,尤其抗黄色镰刀菌和梨孢镰刀菌效果更好。预先用乳酸片球菌KTU05-7以及戊糖片球菌KTU05-10菌株渗透预发酵处理的污染麦粒,与未处理的谷物相比,麦粒萌芽率分别增加了9.5%和7.9%。
外文摘要:This study mainly focuses on finding a strategy for reduction of Fusarium mycotoxin in malting wheat grains, predominantly used in the production of beverages and certain baked goods. The effect of treatment with lactic acid bacteria (LAB) on deoxynivalenol (DON), zearalenone (ZEN), T-2 and HT-2 toxins contained in malting wheat grains was studied. Additionally, the impact of bio-treatment with bio-products based on cheese whey permeate previously fermented with LAB on microbial contamination and germination capacity of grains was studied. Treatment with Lactobacillus sakei ICTU05.6, Pediococcus acidilactici ICTU05-7, and Pediococcus pentosaceus KTU05-8, KTU05-09, and KTU05-10 strains resulted in reduction of ZEN, DON, T-2 and HT-2 toxin concentrations in malting grains by 23, 34, 58 and 73% respectively. Moreover, the test of LAB strains revealed a broad spectrum of antimicrobial activity against fungi, especially Fusarium culmorum and Fusarium poae. Treatment of contaminated wheat grains with permeate previously fermented with P. acidilactici KTU05-7 and P. pentosaceus KTU05-10 strains resulted in increased germination of wheat grains by 9.5 and 7.9% respectively comparing with grains that were not pre-treated.
外文关键词:Mycotoxins;Fusarium;Lactobacillus;Malting grains
作者:Juodeikiene, Grazina;Bartkiene, Elena;Cernauskas, Darius等
作者单位:Kaunas University of Technology
期刊名称:LWT-FOOD SCIENCE AND TECHNOLOGY
期刊影响因子:2.329
出版年份:2018
出版刊次:-
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  1. 编译服务:农产品质量安全
  2. 编译者:孙艺伟
  3. 编译时间:2018-07-05