Mischler Sandra, André Amandine, Chetschik Irene, Miescher Schwenninger Susanne
Institute of Food and Beverage Innovation, ZHAW Zurich University of Applied Sciences, 8820 Wädenswil, Switzerland.
Microorganisms. 2024 Sep 13;12(9):1892. doi: 10.3390/microorganisms12091892.
Mycotoxins, toxic compounds produced by fungi, pose significant risks to food safety and human health. This study investigates the bio-detoxification potential of 238 strains of lactic acid bacteria (LAB) and spp., previously isolated from cereals (including mycotoxin-contaminated grains), against the emerging mycotoxin, enniatin B (ENB), and the prevalent mycotoxin, deoxynivalenol (DON). Out of the tested strains, 26 demonstrated notable mycotoxin reduction capabilities, including 2 and 24 strains. strains MA572, MA695, MA696, TR174a, TR284, TR363, and TR466a degraded ENB to levels below the detection limit, and six strains reduced DON by 30-35%; TR251b and TR374 showed the highest DON reduction with 35.7%. The most promising strains for bio-detoxification were TR284, which achieved a 100% reduction in ENB and a 28.6% reduction in DON and TR388 with a 97.5% reduction in ENB and a 31.9% reduction in DON. None of the tested LAB strains significantly reduced either mycotoxin. These findings highlight the promising potential of strains in bio-detoxifying mycotoxin-contaminated cereal products. Further research into the underlying detoxification mechanisms and safety aspects is essential to develop effective bio-detoxification strategies for enhancing food safety.
霉菌毒素是由真菌产生的有毒化合物,对食品安全和人类健康构成重大风险。本研究调查了先前从谷物(包括受霉菌毒素污染的谷物)中分离出的238株乳酸菌(LAB)和 种对新出现的霉菌毒素恩镰孢菌素B(ENB)和普遍存在的霉菌毒素脱氧雪腐镰刀菌烯醇(DON)的生物解毒潜力。在测试的菌株中,有26株表现出显著的霉菌毒素降低能力,包括2株 和24株 。菌株MA572、MA695、MA696、TR174a、TR284、TR363和TR466a将ENB降解至检测限以下,6株菌株将DON降低了30 - 35%;TR251b和TR374对DON的降低率最高,为35.7%。生物解毒最有前景的菌株是TR284,它使ENB降低了100%,DON降低了28.6%,以及TR388,它使ENB降低了97.5%,DON降低了31.9%。没有测试的LAB菌株能显著降低任何一种霉菌毒素。这些发现突出了 菌株在生物解毒受霉菌毒素污染的谷物产品方面的潜在前景。进一步研究潜在的解毒机制和安全性方面对于开发有效的生物解毒策略以提高食品安全至关重要。