title: Rennet Coagulation and Cheesemaking Properties of Thermally Processed Milk: Overview and Recent Developments.
abstract: Thermally induced changes in milk proteins and minerals, particularly interactions among caseins and denatured whey proteins, influence important properties of dairy products in both positive and negative ways. Whereas the extensive protein connectivity and increased water-holding capacity resulting from such heat-induced protein modification account for the much desired firmness of acid gels of yogurt, thermal processing, on the other hand, severely impairs clotting and adversely affects the cheesemaking properties of rennet-coagulated cheeses. In technological terms, the principal ongoing challenge in the cheese industry is to take advantage of the water-holding capacity of thermally aggregated whey proteins without compromising the rennetability of cheese milk or the textural and functional attributes of cheese. Including some recent data from the authors' laboratory, this paper will discuss important aspects and current literature on the use of thermally processed milk in the production of rennet-coagulated cheeses and also some of the potential alternatives available for inclusion of whey proteins in cheese, such as the addition of microparticulated whey proteins to cheese milk.
authors.affiliation: Department of Food Science, University of Guelph , Guelph, Ontario, Canada N1G 2W1.
authors.forename: Prashanti
authors.initials: P
authors.lastname: Kethireddipalli
authors.affiliation: Department of Food Science, University of Guelph , Guelph, Ontario, Canada N1G 2W1.
authors.forename: Arthur R
authors.initials: AR
authors.lastname: Hill
mesh_terms: D000818:Animals; D002611:Cheese / Q000032:analysis*; D012085:Chymosin / Q000737:chemistry*; D005511:Food Handling / Q000379:methods*; D008892:Milk / Q000737:chemistry*; D013696:Temperature
chemical_list: C025350:rennet; D012085:Chymosin
keywords: casein micelles; cheese; rennet coagulation of milk; thermally processed milk; whey protein/κ-casein complexes