【摘 要】
:
对牛奶中叶酸、VB12和生物素的本底含量进行测定,为乳制品中叶酸、VB12和生物素的强化提供数据支持.选取大量牛奶样本,通过微生物法对叶酸、VB12和生物素含量进行测定.牛奶中
【机 构】
:
内蒙古蒙牛乳业(集团)股份有限公司质量安全管理系统中心实验室,内蒙古呼和浩特市第二中学生物组
论文部分内容阅读
对牛奶中叶酸、VB12和生物素的本底含量进行测定,为乳制品中叶酸、VB12和生物素的强化提供数据支持.选取大量牛奶样本,通过微生物法对叶酸、VB12和生物素含量进行测定.牛奶中的叶酸含量大约为1.68 μg/100 mL~5.69 μg/100 mL,平均值为3.79 μg/100 mL,多数集中在3.0 μg/100 mL~5.0 μg/100 mL;VB12含量大约为0.043 μg/100 mL~0357 μg/1 00 mL,平均值为0.18 μg/100 mL,多数集中在0.1 μg/100 mL~0.3 μg/100 mL;生物素含量大约为1.47 μg/100 mL~4.63 μg/100 mL,平均值为2.60 μg/100 mL,多数集中在2μg/100 mL~3 μg/100 mL.乳制品中强化叶酸、生物素和VB12可以依据上述数值参考添加.
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