羊奶婴儿配方奶粉中蛋白质体外模拟消化研究  

in vitro Digestion of Proteins in Goat Milk Formula

作　　者：顾浩峰[1,2] 张富新[1] 张怡[1] 

机构地区：[1]陕西师范大学食品工程与营养科学学院,陕西西安710062 [2]安康学院农学与生命科学院,陕西安康725000

出　　处：《食品科学》2013年第19期302-305,共4页Food Science

基　　金：陕西省农业科技创新项目(2010NKC-10);国家公益性行业(农业)科研专项(201103038);西安市科技富民工程项目(NC08025);科技部农业成果转化资金项目(2009GB2G000368)

摘　　要：以全脂羊奶粉和牛奶婴儿配方奶粉为对照，模拟婴儿胃肠消化环境对3组羊奶婴儿配方奶粉中的蛋白质进行体外模拟消化研究，测定其体外胃消化率、肠消化率、总消化率和消化液中氨基酸的含量。结果表明：羊奶婴儿配方奶粉的体外胃消化率、肠消化率及胃肠总消化率均显著高于牛奶配方奶粉和全脂羊奶粉（P＜0.05）；羊奶婴儿配方奶粉体外消化液中总氨基酸和必需氨基酸的含量较高，其中总氨基酸含量为112.94～117.55mg/100g消化液，必需氨基酸含量为75.61～78.89mg/100g消化液。由此说明羊奶婴儿配方奶粉中蛋白质能较好地被机体吸收利用，营养价值较高。in vitro digestion of proteins in goat milk formula was conducted in a simulated digestion environment of infants. Whole goat milk powder and cow milk infant formula powder were used as controls. The in vitro gastric, intestinal and total digestibility of proteins was measured. The results showed that the in vitro gastric, intestinal and total digestibility of proteins in goat milk formula was significantly higher than that in cow milk formula and whole goat milk powder （P 〈 0.05）, and amino acid contents in digestive juice for goat milk formula were also higher. The content of total amino acids was 112.94 to 117.55 mg/100 g digestive juice and the content of essential amino acids was 75.61 to 78.89 mg/100 g digestive juice. Therefore, proteins in goat milk formula are nutritional due to easy absorption.

关 键 词：羊奶婴儿配方奶粉 蛋白质 体外模拟消化 消化率 

分 类 号：TS252.51[轻工技术与工程—农产品加工及贮藏工程]