中国食品添加剂Issue(6)：210-214,5.
响应面法优化低乳糖奶水解工艺
Optimization of low- lactose milk manufacture using response surface methodology
摘要
Abstract
Nutrient-rich milk and dairy products, easy digestion and absorption, known as "white blood" , is the best natural food. China dairy industry has developed rapidly in recent years, but there is still a huge gap in average level compared to the world. And lactose intolerance is one of the most important reason for restricting the development of China dairy industry. Using β-galactosidase hydrolysis of milk can generate glucose, galactose and the " bifidus factor" galactooligosaccharide, which Not only solve the problem of lactose intolerance, but also increase the nutritional value of milk. On the basis of single factor experiment, the best hydrolysis technique parameter were acquired by response analysis in which the galactooligosaccharide synthesis rate was the main indicator. The results showed that when the reaction temperature was 45. 3 ℃ , enzyme concentration was 2. 5ml and reaction time was 69. 7min, the maximum galactooligosaccharide yield was 6. 15%. The lactulose content in low-lactose milk was 158. 17mg/L determined by lactulose kit.关键词
低聚半乳糖/β-半乳糖苷酶/响应面法/低乳糖奶Key words
galactooligosaccharide/p-galactosidase/response surface methodology/low-lactose milk分类
轻工纺织引用本文复制引用
徐晨,杜鉴,陈历俊,石维忱..响应面法优化低乳糖奶水解工艺[J].中国食品添加剂,2011,(6):210-214,5.基金项目
北京市科技计划(D10110504600000). （D10110504600000）
