Abstract
This study aimed to highlight the distinctive features of four Traditional Agri-food Products (TAP), namely, Caprino, Pecorino, Vaccino, and Cacioricotta cheeses produced at the same dairy plant to reveal any possible relationships between their microbiological and biochemical characteristics. Two distinct natural whey starter (NWS) cultures were used during Caprino and Vaccino cheesemaking, whereas no starter was used for the other cheeses. Cacioricotta retained the highest concentrations of salt and residual carbohydrates. Lactic acid bacteria dominated the microbiota of the cheeses. Furthermore, staphylococci represented an additional dominant microbial population in Cacioricotta. Although culture-dependent analysis showed that the use of NWS cultures only slightly affected the microbial community of cheeses, 16S metagenetic analysis showed that Lactobacillus helveticus dominated both the NWS cultures and the corresponding Caprino and Vaccino cheeses. This analysis indicated that Staphylococcus equorum and Streptococcus thermophilus dominated Cacioricotta and Pecorino cheeses, respectively. The highest peptidase activities were found in either Caprino or Vaccino. Enzymes involved in the catabolism of free amino acids and esterase showed the highest activity in Pecorino cheese. Each cheese showed a distinct profile of volatile organic compounds, with Pecorino being the richest cheese in carboxylic acids, ketones, and esters, related to lipolysis. The results of this study contribute to valorizing and safeguarding these TAP cheeses, sustaining local farming.
Subject
Plant Science,Health Professions (miscellaneous),Health (social science),Microbiology,Food Science
Reference96 articles.
1. Valorization of Foods: From Tradition to Innovation
2. European Commission: Agricultural and Rural Development: PDO, PGI, TSG Logoshttp://ec.europa.eu/agriculture/quality/schemes/logos/index_en.htm
3. Regolamento Recante Norme Per L’individuazione dei Prodotti Tradizionali di cui All’articolo 8, Comma 1, del Decreto Legislativo 30 Aprile 1998, n. 173https://www.gazzettaufficiale.it/eli/id/1999/10/12/099G0423/sg
4. I prodotti agroalimentari tradizionali (PAT), espressione del territorio e del patrimonio culturale italiano
5. Ministero delle Politiche Agricole Alimentari e Forestali Decreto ministeriale 15 febbraio 2021. Aggiornamento dell’elenco nazionale dei prodotti agroalimentari tradizionali ai sensi dell’articolo 12, comma 1, della legge 12 dicembre 2016, n. 238. (21A01168);Gazz. Uff. Ser. Gen.,2021