摘要
牦牛乳渣中含有多种人体生长发育所必需的营养和矿物质。通过对3种不同海拔的牦牛乳渣中营养成分和多肽的抗氧化活性进行研究,结果表明,牦牛乳渣中的营养成分主要包括蛋白质、脂肪、水分、灰分、维生素D_(3)、维生素E、维生素A以及矿物质元素Ca、Fe、P;香气成分主要包括酸类、烯烃类、酮类、醛类、酚类、醇类、苯环及其他化合物;不同海拔的牦牛乳渣中所含有的营养成分和挥发性成分存在一定程度的差异,这是牦牛的品种和养殖环境导致的。牦牛乳渣对羟基自由基、超氧化物和DPPH自由基具有明显的清除效果,且当牦牛乳渣经过多肽酶解后,其抗氧化活性明显增加。对牦牛乳渣多肽的研究有助于充分利用畜牧业资源,提高农牧业的经济效益。
Yak milk residues contain a variety of nutrients and minerals,which are essential for the growth and development of the human body.The nutrients and antioxidant activity of polypeptides in yak milk residues at three different altitudes are studied,and the results show that the nutrients in yak milk residues mainly include protein,fat,moisture,ash,vitamin D_(3),vitamin E,vitamin A and mineral elements such as Ca,Fe and P;the aroma components mainly include acids,alkenes,ketones,aldehydes,phenols,alcohols,benzenoid and other compounds;the nutrients and volatile components in yak milk residues at different altitudes are different to some extent,which is caused by the species and breeding environment of yaks.Yak milk residues have obvious scavenging effect on hydroxyl free radicals,superoxide and DPPH free radicals,and the antioxidant activity significantly increases when yak milk residues are enzymatically hydrolyzed by polypeptides.The study on polypeptides in yak milk residues is helpful to make full use of animal husbandry resources and improve the economic benefits of agriculture and animal husbandry.
作者
曹岚
张猛
CAO Lan;ZHANG Meng(Harbin Food Industry Institute Co.,Ltd.,Harbin 150025,China;Harbin Xiangfang District Center for Disease Control and Prevention,Harbin 150030,China)
出处
《中国调味品》
CAS
北大核心
2024年第12期175-178,共4页
China Condiment
关键词
牦牛乳渣
营养成分
多肽
抗氧化活性
yak milk residue
nutrient
polypeptide
antioxidant activity
