Zhu Ruiyu, Shan Shuo, Zhou Su, Chen Zhen, Wu Yuanfeng, Liao Wei, Zhao Chao, Chu Qiang
College of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, China.
College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China.
Food Funct. 2023 Apr 3;14(7):3083-3091. doi: 10.1039/d2fo03419k.
Patulin is one of the mycotoxins that exists in abundance in fruits and derivative products and is easily exposed in daily life, leading to various toxicities such as genotoxicity, teratogenicity, immunotoxicity, and carcinogenicity in the human body, while the efficient removal or degradation measures are still in urgent demand. In this work, , a natural yeast with both patulin degradation and intestine damage protection abilities, was first applied to prevent and decrease the hazard after patulin intake. , KD ( KD) could efficiently degrade patulin at high concentrations. In a () model fed on KD, locomotion, oxidative stress, patulin residual, intestine damage, and gene expression were investigated after exposure to 50 μg mL patulin. The results demonstrated that KD could efficiently degrade patulin, as well as weaken the oxidative stress and intestinal damage caused by patulin. Moreover, KD could regulate the gene expression levels of daf-2 and daf-16 through the IGF-1 signaling pathway to control the ROS level and glutathione (GSH) content, thus decreasing intestinal damage. In summary, this work uncovers the outstanding characteristic of an edible probiotic KD in patulin degradation and biotoxicity alleviation and provides enlightenment toward solving the hazards caused by the accumulation of patulin.
展青霉素是一种在水果及其衍生产品中大量存在的霉菌毒素,在日常生活中很容易接触到,会导致人体出现各种毒性,如遗传毒性、致畸性、免疫毒性和致癌性,而高效的去除或降解措施仍亟待开发。在这项研究中,首次应用了一种兼具展青霉素降解能力和肠道损伤保护能力的天然酵母,以预防和降低摄入展青霉素后的危害。KD(KD)能够在高浓度下高效降解展青霉素。在以KD为食的()模型中,在暴露于50μg/mL展青霉素后,研究了其运动能力、氧化应激、展青霉素残留、肠道损伤和基因表达情况。结果表明,KD能够高效降解展青霉素,并减轻展青霉素引起的氧化应激和肠道损伤。此外,KD可以通过胰岛素样生长因子-1(IGF-1)信号通路调节daf-2和daf-16的基因表达水平,以控制活性氧(ROS)水平和谷胱甘肽(GSH)含量,从而减少肠道损伤。综上所述,这项研究揭示了可食用益生菌KD在展青霉素降解和生物毒性缓解方面的突出特性,并为解决展青霉素积累所造成的危害提供了启示。