METHOD OF PURIFYING WHEY OF LACTIC ACID FERMENTATION BY ELECTRODIALYSIS

摘要

In a method of purifying whey separated from lactic acid fermentation liquid by electrodialysis wherein said whey contains angiotensin-converting enzyme inhibiting peptides, the improvement which comprises using an anion exchange membrane having a permeability of diffusion coefficient in the range of 3.0 to 9.0 x 10<-6> cm/sec. An anion exchange membrane having a permeability of diffusion coefficient in the range of 5.0 to 7.0 x 10<-6> cm/sec. is more efficiently used. The product is particularly suited to produce granules and tablets.