一、概述随着科学技术的发展和社会的繁荣,人们的日常饮食生活有了很大的改变。在一些先进国家,由于生活水平的提高,对食品的要求已不再仅仅是饱食,而是着重要求有益于健康的食品。食品是极易受污染的,受污染后不仅品质下降,而且会腐败变质,引起食物中毒。食品污染主要分三大类:第一类是生物性污染,包括致病菌和腐败菌两种。第二类 I. Overview With the development of science and technology and social prosperity, people’s daily diet has changed a lot. In some advanced countries, due to the improvement of living standards, the demand for food is no longer just a satiation but a focus on wholesome foods. Food is extremely polluted, contaminated not only the quality decline, but also spoilage, causing food poisoning. Food pollution is divided into three main categories: The first category is biological contamination, including pathogens and spoilage bacteria two. The second category