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由于营养丰富等特点,纯奶也是微生物生长、繁殖的良好培养基,极易受到动物体以及挤奶环境中微生物的污染。引起“生鲜奶”微生物污染的主要是来源于环境中的大肠杆菌、金黄色葡萄球菌、假单胞菌、真菌等,以及源于动物体的布鲁氏杆菌、结核杆菌等人畜共患致病菌等。——中国农业大学食品科学与营养工程学院副教授朱毅
Because of its nutrient-rich characteristics, pure milk is also a good medium for the growth and reproduction of microorganisms and is highly susceptible to microbial contamination in animal and milking environments. Caused by “fresh milk ” microbial contamination is mainly derived from the environment of E. coli, Staphylococcus aureus, Pseudomonas, fungi, etc., and from animals, such as Brucella, Mycobacterium tuberculosis and other livestock Pathogenic bacteria and so on. - China Agricultural University, Associate Professor of Food Science and Nutrition Engineering, Zhu Yi