内蒙古生鲜乳中氨基酸含量及其地区差异比较研究  

Comparison of Amino Acid Content and Regional Difference in the Raw Milk of Inner Mongolia

作　　者：宋洁[1] 张三粉[1] 冯小慧 杜琳 史培[1] 王丽芳[1] 姚一萍[1] SONG Jie;ZHANG Sanfen;FENG Xiaohui;DU Lin;SHI Pei;WANG Lifang;YAO Yiping(Laboratory of Quality&Safety Risk Assessment for Agricultural Products, Ministry of Agriculture,Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences,Hohhot 010031,China)

机构地区：[1]内蒙古农牧业科学院,农业部农产品质量安全风险评估实验室,呼和浩特010031

出　　处：《中国畜牧兽医》2018年第10期2969-2975,共7页China Animal Husbandry & Veterinary Medicine

基　　金：内蒙古农牧业科学院创新基金项目(2017CXJJM09)

摘　　要：试验旨在分析内蒙古生鲜乳中氨基酸含量、乳蛋白营养价值及其在不同地区的差异,为生鲜乳营养品质评定提供理论依据。选取内蒙古呼伦贝尔市、锡林郭勒盟、乌兰察布市、赤峰市、呼和浩特市、兴安盟、通辽市7个代表地区,采集同一季节70批次奶罐奶,用于分析内蒙古生鲜乳中17种氨基酸含量,并用FAO(2011)推荐的最新氨基酸评分模式评价乳蛋白营养价值,同时比较地区差异。结果表明:内蒙古生鲜乳中氨基酸总量为3.117%,其中谷氨酸含量最高(0.593%),其次是脯氨酸、亮氨酸、赖氨酸,甘氨酸和胱氨酸含量最低(0.060%和0.061%)。内蒙古生鲜乳中必需氨基酸(EAA)构成比例及氨基酸评分均高于FAO/WHO理想蛋白质标准和模式。内蒙古不同地区生鲜乳氨基酸含量存在较大差异,主要表现为:与赤峰市生鲜乳中氨基酸含量相比,锡林郭勒盟生鲜乳中EAA、非必需氨基酸(NEAA)和总氨基酸(TAA)的含量优势明显(P<0.05),呼伦贝尔市生鲜乳中缬氨酸、赖氨酸、组氨酸、甘氨酸、丙氨酸的含量较高(P<0.05),呼和浩特市生鲜乳中亮氨酸、赖氨酸、组氨酸、丙氨酸、天冬氨酸和酪氨酸含量相对较高(P<0.05),其他几个盟市差异不显著(P>0.05)。综合上述试验结果,内蒙古生鲜乳中乳蛋白为优质蛋白,其中锡林郭勒盟、呼伦贝尔市和呼和浩特市生鲜乳氨基酸营养价值相对较高。The purpose of this experiment was to compare the amino acid content,nutritional value of milk protein and regional difference in the raw milk of Inner Mongolia,so as to provide a theoretical basis for the quality evaluation of raw milk.70 milk samples were selected from milk storage tank with the similar season in Hulunbuir,Xilinguole Meng,Wulanchabu,Chifeng,Hohhot,Xing’an Meng and Tongliao,to measure the content of 17 amino acids in the raw milk of Inner Mongolia,and evaluate the nutritional value of milk protein according to the latest amino acid score recommended by FAO(2011),meanwhile compare the regional difference.The results showed that the total amount of 17 amino acids in Inner Mongolia raw milk was 3.117%,the content of glutamic acid was the highest(0.593%),followed by proline,leucine and lysine,glycine(0.060%)and cystine(0.061%)were the lowest.The proportion of essential amino acids(EAA)and amino acid score in raw milk of Inner Mongolia were higher than that of FAO/WHO ideal protein standard and ideal protein pattern.The content of amino acids in milk of different regions of Inner Mongolia were quite different.Compared with the amino acids content in the milk of Chifeng,the content of EAA,non essential amino acids(NEAA)and total amino acids(TAA)in Xilinguole Meng milk were significantly higher(P<0.05),the content of valine,lysine,histidine,glycine and alanine were higher in Hulunbuir(P<0.05).The content of leucine,lysine,histidine,alanine,aspartic acid and tyrosine in Hohhot were relatively higher(P<0.05),the differences in other regions were not significantly(P>0.05).It was concluded that the protein of raw milk from Inner Mongolia had high quality,and the amino acid nutritional value of Xilinguole Meng,Hulun Buir and Hohhot were better.

关 键 词：内蒙古 生鲜乳 氨基酸 地区差异 

分 类 号：TS252.1[轻工技术与工程—农产品加工及贮藏工程]