Effect of high-pressure processing on the characteristics of cheese made from ultrafiltered milk: Influence of the kind of rennet

Autor(es)

Ribeiro, Luma Rossi ^[1] ; de Castro Leite Junio, Bruno Ricardo ^{[1, 2]} ; Cristianini, Marcelo ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Campinas, UNICAMP, Sch Food Engn FEA, Dept Food Technol DTA, Monteiro Lobato 80, POB 6121, BR-13083862 Campinas, SP - Brazil

^[2] Univ Vicosa UFV, Dept Food Technol DTA, Univ Campus, BR-36570900 Vicosa, MG - Brazil

• Tipo de documento: Artigo Científico
• Fonte: INNOVATIVE FOOD SCIENCE & EMERGING TECHNOLOGIES; v. 50, p. 57-65, DEC 2018.
• Citações Web of Science: 0

Resumo

High pressure processing (HPP) can reduce proteolysis and extend the shelf life of cheese products. This study evaluated the physicochemical, rheological, microbiological, and microstructural characteristics of HP-processed cheese made from ultrafiltered milk (UF-cheese). UF-cheeses were manufactured with recombinant chymosin (RC) or bovine rennet (BR), processed at 600 MPa/5 min/25 degrees C, and stored at 7 degrees C for up to 56 days. HPP did not affect color parameters. Both UF-cheeses (made with RC or BR) showed a significant increase in syneresis over time. Regarding texture, HPP yielded firmer cheeses. After 1 day of storage, HP-processed cheeses made with RC and BR had a reduction of 42.8 and 52.5% in proteolysis, respectively, in comparison with the controls. Moreover, HPP promoted a reduction in psychrotrophic count. HPP is a promising technology for the production of fresh UF-cheese, as it reduces proteolysis and extends product shelf life. Industrial relevance: HPP is an interesting technology for the processing of fresh UF-cheese. HP process yielded firmer cheeses, caused no significant changes in color and promoted a reduction in psychrotrophic count. Additionally, the proteolysis reduction of the UF-cheese by HPP may maintain the characteristics of fresh cheeses and extend product shelf life. Therefore, the HP processing of UF-cheese can improve its market in the dairy industry to obtain fresh UF-cheese with excellent quality and an extended shelf-life. (AU)

• Processo FAPESP: 12/13509-6 - Aplicação da tecnologia de alta pressão na modificação de enzimas utilizadas na fabricação de queijos
• Beneficiário: Marcelo Cristianini
• Modalidade de apoio: Auxílio à Pesquisa - Regular