| 摘要 |
A process for increasing the capacity of plants for membrane filtration of milk or milk products, whereby prior to the membrane filtration, the milk or milk product is usually subjected to one or more pretreatments selected from the following: (a) heat treatment for bacteriological reasons, (b) fat standardization in view of the fat content of the product, (c) homogenization in view of the physical and organoleptic properties of the end product, and (d) pre-acidulation in order to influence the solubility of the ash components of the milk. According to this process, prior to the membrane filtration, said milk or milk product is additionally subjected to an enzymatic treatment with curdling enzyme under agitation of the milk or milk product to form an integrated dispersion of a coagel in whey. The resulting concentrate may be used as feeding additive or feeding starting material as well as a nutritive medium by microbial processes. |
