Process design for processed Kashar cheese (a pasta-filata cheese) by means of microbial transglutaminase: Effect on physical properties, yield and proteolysis


TOPCU A., BULAT T., Ozer B.

LWT-FOOD SCIENCE AND TECHNOLOGY, vol.125, 2020 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 125
  • Publication Date: 2020
  • Doi Number: 10.1016/j.lwt.2020.109226
  • Journal Name: LWT-FOOD SCIENCE AND TECHNOLOGY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aquatic Science & Fisheries Abstracts (ASFA), BIOSIS, Biotechnology Research Abstracts, CAB Abstracts, Compendex, Food Science & Technology Abstracts, Veterinary Science Database
  • Keywords: Processed Kashar cheese, Transglutaminase, Rheology, Texture, Yield, Proteolysis, CHEDDAR CHEESE, CROSS-LINKING, RHEOLOGICAL PROPERTIES, WHITE CHEESE, BETA-CASEIN, SKIM MILK, RENNET, COAGULATION, STABILITY, PROTEINS
  • Hacettepe University Affiliated: Yes

Abstract

Cheese industry has long been interested in improving the quality and functionality of cheese to meet consumers' demand as well as reducing the production costs by using different manufacturing strategies. In this study, the effects of microbial transglutaminase (mTG) on the yield, proteolysis and physical properties of processed Kashar cheese were evaluated. The mTG level used was 0.75 U/g protein and the concentrations of emulsifying salt (ES) mixture were 0.8, 1.0 and 1.2 g/100 g cheese curd (w/w). The increase in the moisture adjusted yield of cheeses were between 1.68 and 2.00% as relative change compared to control cheese. The cheeses had similar melting profile with the control cheese. The rheological and textural properties of the cheeses were different from the control cheese. The ES concentration and addition of mTG had an impact on the proteolysis but it did not affect meltability in current concentration. To conclude, the yield of processed Kashar cheese may well be increased to a satisfactory level without adversely affecting the physical characteristics of the end product.