燕麦发酵乳及品质分析  

Fermented Oat Milk and Quality Analysis

作　　者：韩姣姣 赵婷 赵近尧 马玲[1] HAN Jiao-jiao;ZHAO Ting;ZHAO Jin-yao;MA Ling(College of Food Science and Engineering,Shanxi Agricultural University,Jinzhong 030801,China)

机构地区：[1]山西农业大学食品科学与工程学院,山西晋中030801

出　　处：《中国调味品》2024年第9期162-166,185,共6页China Condiment

基　　金：黄土高原特色作物优质高效生产省部共建协同创新中心(SBGJXTZX-05);山西农业大学科技创新基金项目(2018YJ02)。

摘　　要：将富硒燕麦添加到生牛乳中制成富硒燕麦发酵乳,对富硒燕麦发酵乳在低温贮藏过程中的感官、酸度、持水力、活菌数、蛋白质、总酚等进行评价。结果表明,贮藏第1~7天,富硒燕麦发酵乳的持水力高于对照发酵乳,之后下降较快,颜色更偏红和偏黄。富硒燕麦发酵乳的活菌数在贮藏7 d后高于对照发酵乳,而整个贮藏过程中滴定酸度低于对照发酵乳,DPPH自由基清除率高于对照发酵乳,总酚含量和蛋白质含量接近,而富硒燕麦发酵乳的质构更好且感官评分高于对照发酵乳。富硒燕麦发酵乳具有较高的抗氧化活性、较低的后酸化,更有利于贮藏过程中品质的保持,相较于普通燕麦发酵乳具有一定的产品优势,故富硒燕麦发酵乳的产品研发具有可行性。Selenium-enriched oat is added into raw cow milk to make selenium-enriched oat fermented milk,and the sensory properties,acidity,water holding capacity,viable bacterial count,protein and total phenol of selenium-enriched oat fermented milk during low-temperature storage are evaluated.The results show that the water holding capacity of selenium-enriched oat fermented milk is higher than that of the control fermented milk at the 1st~7th days of storage,then decreases rapidly,and the color is more red and yellow.The viable bacteria count of selenium-enriched oat fermented milk is higher than that of the control fermented milk after 7 d of storage.During the whole storage process,the titrated acidity is lower than that of the control fermented milk,DPPH free radical scavenging rate is higher than that of the control fermented milk,the total phenol content and protein content are similar,the texture of selenium-enriched oat fermented milk is better and the sensory score is higher than that of the control fermented milk.Selenium-enriched oat fermented milk has higher antioxidant activity and lower post-acidification,which is more conducive to the quality maintenance during storage.Compared with ordinary oat fermented milk,selenium-enriched oat fermented milk has certain product advantages,so the research and development of selenium-enriched oat fermented milk products is feasible.

关 键 词：燕麦发酵乳 富硒燕麦 贮藏 品质分析 

分 类 号：TS252.42[轻工技术与工程—农产品加工及贮藏工程]