利用膜分离技术和酶技术生产低乳糖牛奶的研究

Studies on the Manufacture of LowLactose Milk Using Membrane and Enzymatic Technology

摘要: 提出了一种生产低乳糖牛奶的新工艺，即借助膜分离这一新型工程技术手段，对牛奶先进行超滤／稀释超滤处理，透过液经β－半乳糖苷酶水解，再与保留液混合、标准化、均质。从而解决了传统工艺中由于牛奶组分复杂，易引起β－半乳糖苷酶污染、失活的问题。

Abstract: An alternative process for the manufacture of lowlactose milk was investigated in this paper. Milk was first subjected to ultrafiltration / diafiltration treatment, the permeateagent was subjected to β－galactosidase treatment and then mixed with the retentionaid again. This process compared favourably with the traditional process with respect to fouling and microbial contamination of the enzyme.