PRODUCTION OF COW'S MILK FAT GLOBULE MEMBRANE

摘要

PURPOSE:To economically obtain a cow's milk fat globule membrane, having high safety and capable of exhibiting excellent emulsifying characteristics by subjecting butter milk formed as a by-product in collecting butter from cow's milk cream to ultrafiltration or isoelectric precipitation. CONSTITUTION:Cow's milk formed as a by-product in collecting butter from cow's milk cream is subjected to ultrafiltration or isoelectric precipitation to provide a cow's milk fat globule membrane. The butter milk is treated with an ultrafiltration membrane having 20000 fractionation molecular weight to nearly completely remove low-molecular weight substances accounting for 50-55% in the butter milk. Thereby, the ratio occupied by the cow's milk fat globule membrane in the total solid substance can be remarkably enhanced. In the ultrafiltration, if an ultrafiltration membrane with 100000 fractionation molecular weight is used, not only cow's milk low-molecular weight compounds but also whey proteins can be removed. As a result, the ratio occupied by the cow's fat globule membrane in the total solid substance can further be enhanced.