Abstract: The pH of milk is lowered to 4.5 to 5.5 by direct acidification without the necessity of cooling the milk to avoid local coagulation and casein precipitation by adding acid as a spray from above a portion of the milk surface undergoing high velocity mixing.

Abstract: A process for improving the quality of microbial rennet by inactivating cellulase impurities in microbial rennet which comprises heat-treating microbial rennet in an aqueous medium in the presence of sodium chloride.

Abstract: A process for the production of a protein food, especially cheese, which comprises coagulating the coagulable proteins of a milk, treating the curd obtained by ultrafiltration on at least one semi-permeable membrane and collecting a concentrated curd of which the dry solids content and the ratio by weight of proteins to non-proteins are substantially equal to those of the end product.

Abstract: A soy cheese having superior texture and body characteristics is made without milk solids by coagulating a fermented emulsion containing soy milk and a fat composition with about 0.05 to about 1.0 weight percent of a coagulant selected from the group consisting of aldonic acid lactones, uronic acid lactones, and mixtures thereof. A flavor producing proteolytic enzyme can be added to the soy milk before formation of the emulsion, to the emulsion prior to fermentation, or to the cooked curd without adversely affecting the texture and body of the resultant soy cheese.