【作者】 孙涛； 高海燕； 尹京苑； 韩奕奕；

【Author】 Tao Sun Haiyan Gao Jingyuan Yin Yiyi Han (Life Science College,Shanghai University,Shanghai,200444)

【机构】 上海大学生命科学学院；

【摘要】 本实验以2009年上海市及周边地区牧场的生鲜乳为研究对象,利用相关分析、通径分析、多元回归分析等方法,对上海地区生鲜乳质量的变化规律和影响因素进行了研究。结果显示生鲜乳中体细胞、菌落总数的变化显著,脂肪含量与蛋白质含量和冰点,蛋白质含量与冰点和体细胞、菌落总数与体细胞和平均温度间呈极显著正相关,而体细胞和平均温度间呈极显著负相关关系。同时建立了影响生鲜乳菌落总数含量与温度、脂肪、蛋白质、湿度的回归模型Y=7.592+0.465X₁-4.029X₂-3.494X₃-0.182X₄。更多还原

【Abstract】 The quality changes and influential factors of raw milk on the Shanghai area was researched by applying methods of correlation analysis,path analysis,multiple regression analysis,etc,taking raw milk in the pastureland of Shanghai and the surrounding area of 2009 as object.The results showed that somatic cells,the total of colonies of bacteria in raw milk change significantly,the correlation between fat content and protein content and the freezing point,protein content and the freezing point and the somatic cells,the total of colony of bacteria and somatic cells and the average temperature was significantly positive,while correlation between the somatic cells and the average temperature was significantly negative.At the same time,a regression model is established which shows about affecting the total of colonies of bacteria and temperature,fat,protein,moisture:Y=7.592+0.465X,-4.029X₂-3.494X₃-0.182X₄.更多还原