改性蒙脱土对霉菌毒素的吸附研究进展

发布时间：2018-04-11 17:16

本文选题：霉菌毒素 + 蒙脱土　；参考：《化工进展》2017年02期

【摘要】：霉菌毒素广泛地存在于腐败变质的饲料和食物中,关系到人类的食品安全问题,如何降低霉菌毒素对饲料和食品等的威胁是目前正在研究的热点,其方法之一就是采用改性蒙脱土进行脱毒处理。本文以此为目的,首先介绍了常见霉菌毒素的种类和基本脱毒方法,然后针对蒙脱土脱毒问题,介绍了蒙脱土的结构、性能与脱毒原理,重点综述了用于脱毒的蒙脱土改性方法,主要包括季铵盐改性、金属离子改性、有机酸改性及其他改性方法等。改性过程不但可以改变蒙脱土的层间距,而且可改善其表面性能,同时交换后的阳离子,如金属离子可能通过与毒素分子之间形成强相互作用而提高改性蒙脱土的脱毒素能力;与此同时,改善的杀菌能力也有助于提高脱毒素效果。在未来的应用中,新的改性方法包括研发新的可降解改性剂及其对不同霉菌毒素的综合吸附会有更为深入的研究。
[Abstract]:Mycotoxins widely exist in spoilage fodder and food, which is related to human food safety. How to reduce the threat of mycotoxins to feed and food is a hot research topic.One of the methods is to detoxify the modified montmorillonite.For this purpose, this paper first introduces the kinds of mycotoxins and the basic methods of detoxification, and then introduces the structure, performance and detoxification principle of montmorillonite, aiming at the problem of demineralization of montmorillonite.The modification methods of montmorillonite for detoxification were reviewed, including quaternary ammonium salt modification, metal ion modification, organic acid modification and other modification methods.The modification process can not only change the interlayer spacing of montmorillonite, but also improve the surface properties of montmorillonite. At the same time, the exchangeable cations, such as metal ions, may improve the ability of demineralization of modified montmorillonite by forming strong interaction with toxin molecules.At the same time, the improved bactericidal ability also helps to improve the detoxification effect.In future applications, new modification methods include the development of new degradable modifiers and their comprehensive adsorption of different mycotoxins.
【作者单位】：西安理工大学应用化学系;北京创新高农饲料有限公司;
【分类号】：O647.3;S816

【相似文献】