Effect of whey pH at drainage on physicochemical, biochemical, microbiological, and sensory properties of Mozzarella cheese made from buffalo milk during refrigerated storage

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Yazıcı F., Dervisoglu M., Akgun A., Aydemir O.

JOURNAL OF DAIRY SCIENCE, vol.93, no.11, pp.5010-5019, 2010 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 93 Issue: 11
  • Publication Date: 2010
  • Doi Number: 10.3168/jds.2009-2908
  • Journal Name: JOURNAL OF DAIRY SCIENCE
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.5010-5019
  • Keywords: Mozzarella cheese, drainage, pH, proteolysis, FUNCTIONAL-PROPERTIES, CHEMICAL-COMPOSITION, CHEDDAR CHEESE, PROTEOLYSIS, CULTURES, CALCIUM, MANUFACTURE, IMPACT, PREACIDIFICATION, EVOLUTION
  • Ondokuz Mayıs University Affiliated: Yes

Abstract

The objective of this research was to determine the effect of drainage pH on physicochemical, biochemical, microbiological and sensory properties of Mozzarella cheese made from buffalo milk during refrigerated storage. Four vats of cheese were made at 4 different whey drainage pH (6.2, 5.9, 5.6, and 5.2). Lower drainage pH caused higher pH 4.4-soluble N and pH 4.4-soluble N:total N. Interaction of drainage pH at d 1 and 30 of storage on all soluble nitrogen fractions was significant. Degradation of caseins in samples made at a drainage pH of 6.2 was lower than that of other cheese samples. The decreasing whey drainage pH significantly increased counts of thermophilic and mesophilic lactobacilli of the samples during refrigerated storage. No coliforms or Escherichia coli were detected in the cheeses. The average sensory property scores of all cheese samples were very close, and, as expected, storage time had a negative effect on all sensory scores.