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Article: Impact of Chymosin- and Plasmin-Mediated Primary Proteolysis on the Growth and Biochemical Activities of Lactobacilli in Miniature Cheddar-Type Cheeses
- Article from:
- Journal of Dairy Science
- Article date:
- September 1, 2008
- Author:
CopyrightCopyright American Dairy Science Association Sep 2008. Provided by ProQuest LLC. (Hide copyright information)
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ABSTRACT
Strongly proteolytic starters seem to improve the growth of nonstarter lactobacilli during cheese ripening, but no information is available on the impact of the nonmicrobial proteases usually active in cheese on their development. In the current study, the influence of chymosin- and plasmin-mediated proteolysis on the growth and biochemical activities of lactobacilli during ripening of miniature Cheddar-type cheeses, manufactured under controlled microbiological conditions, was studied. Two experiments were performed; in the first, residual chymosin activity was inhibited by the addition of pepstatin, and in the second, plasmin activity was increased by adding more enzyme, obtained ...