食品科学 ›› 2009, Vol. 30 ›› Issue (3): 197-200.doi: 10.7506/spkx1002-6630-200903044

• 生物工程 • 上一篇    下一篇

高蛋白低聚肽奶粉生产用酶的筛选研究

任国谱1,李忠海1,彭灿2,彭美纯2   

  1. 1.中南林业科技大学食品科学与工程学院 2.湖南亚华乳业有限公司技术中心
  • 收稿日期:2008-01-12 修回日期:2008-05-06 出版日期:2009-02-01 发布日期:2010-12-29
  • 通讯作者: 任国谱 E-mail:topren@vip.163.com
  • 基金资助:

    “十一五”国家支撑计划项目(2006BAD04A15);国家农业转化基金项目(2006GB2D200202)

Enzyme Screening for Production of High-protein and Oligopeptides Milk Powder

REN Guo-pu1,LI Zhong-hai1, PENG Can2, PENG Mei-chun2   

  1. (1.College of Food Science and Engineering, Central South University of Forestry Technology, Changsha 410004, China;
    2.Center of Technology, Hunan Avadairy Corp. Ltd.,Changsha 410200, China)
  • Received:2008-01-12 Revised:2008-05-06 Online:2009-02-01 Published:2010-12-29
  • Contact: REN Guo-pu1 E-mail:topren@vip.163.com

摘要:

以水解度(DH)、氮溶解指数(NSI)及低聚肽得率为指标,研究各种蛋白酶对乳蛋白的水解情况。结果表明,碱性蛋白酶、复合酶A 和Protamex 对各种乳蛋白都有较强的水解作用,其他蛋白酶的作用相对较弱。复合酶B和木瓜蛋白酶作用于各种乳蛋白得到的水解液的苦味程度轻微,而其他酶得到的水解液苦味程度较强且有异味。

关键词: 水解度, 氮溶解指数, 白酶, 牛乳, 奶粉, 低聚肽, 蛋白质

Abstract:

The hydrolysis of milk protein by different enzymes was studied by with DH, nitrogen soluble index (NSI) and peptide content as indexes. The results showed that milk protein can be hydrolyzed well enough by alkalizyme, prozyme A and Protamex. Moreover, the bitterness of the hydrolysate by prozyme B or pepsin is weaker than that of hydrolysate by other enzymes.

Key words: degree of hydrolysis (DH), nitrogen soluble index(NSI), enzyme, milk, milk powder, oligopeptide, protein

中图分类号: