PMID- 38154252 OWN - NLM STAT- MEDLINE DCOM- 20240110 LR - 20240110 IS - 1879-3460 (Electronic) IS - 0168-1605 (Linking) VI - 411 DP - 2024 Feb 2 TI - Comparative analysis of microbial succession and proteolysis focusing on amino acid pathways in Asiago-PDO cheese from two dairies. PG - 110548 LID - S0168-1605(23)00465-8 [pii] LID - 10.1016/j.ijfoodmicro.2023.110548 [doi] AB - In this study, a comprehensive and comparative analysis was conducted on Italian Asiago-PDO cheese obtained from two different dairies named Dairy I and Dairy II using industrial and natural fermented milk, respectively. The analysis encompassed the evaluation of chemical composition, the succession of the microbiota during manufacture and ripening, and proteolysis mainly focusing on free individual amino acid (FAA) profiles. A metagenomic approach was used to investigate the cheese microbiome functionality. Differences in gross chemical composition were more evident during ripening, with Dairy II showing higher variability within batches. The microbiota varied significantly between the two dairies and ripening stages. The choice of starter culture shaped the microbiota during production and affected the microbial diversity of non-starter lactic acid bacteria (NSLAB) originated from the raw milk during ripening. Peptide chromatographic profiles and FAA concentrations increased as ripening progressed, with Dairy I showing higher production of FAA. Functional analysis of the metagenomes linked species to specific amino acid metabolism/catabolism pathways. The amino acid metabolism pathways, particularly those related to aromatic amino acids, lysine, and branched-chain amino acids, were affected by the presence of specific NSLAB species, which differed between the two dairies. The results obtained in this study reveal the impact of starter culture on peculiar cheese microbiota assemblies, which selectively targets amino acid pathways, providing insights into the potential flavor and aroma characteristics of Asiago-PDO cheese. CI - Copyright (c) 2023. Published by Elsevier B.V. FAU - Galli, Bruno Domingues AU - Galli BD AD - Free University of Bozen-Bolzano, Faculty of Agricultural, Environmental and Food Sciences, Piazza Universita 1, 39100 Bolzano, BZ, Italy. FAU - Nikoloudaki, Olga AU - Nikoloudaki O AD - Free University of Bozen-Bolzano, Faculty of Agricultural, Environmental and Food Sciences, Piazza Universita 1, 39100 Bolzano, BZ, Italy. Electronic address: olga.nikoloudaki@unibz.it. FAU - Granehall, Lena AU - Granehall L AD - Free University of Bozen-Bolzano, Faculty of Agricultural, Environmental and Food Sciences, Piazza Universita 1, 39100 Bolzano, BZ, Italy. Electronic address: lena.granehaell@unibz.it. FAU - Carafa, Ilaria AU - Carafa I AD - Free University of Bozen-Bolzano, Faculty of Agricultural, Environmental and Food Sciences, Piazza Universita 1, 39100 Bolzano, BZ, Italy. FAU - Pozza, Marta AU - Pozza M AD - University of Padova, Department of Agronomy, Food, Natural resources, Animals and Environment, Viale dell'Universita 16, 35020 Legnaro, PD, Italy. Electronic address: marta.pozza.2@unipd.it. FAU - De Marchi, Massimo AU - De Marchi M AD - University of Padova, Department of Agronomy, Food, Natural resources, Animals and Environment, Viale dell'Universita 16, 35020 Legnaro, PD, Italy. Electronic address: massimo.de-marchi@unipd.it. FAU - Gobbetti, Marco AU - Gobbetti M AD - Free University of Bozen-Bolzano, Faculty of Agricultural, Environmental and Food Sciences, Piazza Universita 1, 39100 Bolzano, BZ, Italy. Electronic address: Marco.Gobbetti@unibz.it. FAU - Di Cagno, Raffaella AU - Di Cagno R AD - Free University of Bozen-Bolzano, Faculty of Agricultural, Environmental and Food Sciences, Piazza Universita 1, 39100 Bolzano, BZ, Italy. Electronic address: Raffaella.DiCagno@unibz.it. LA - eng PT - Journal Article DEP - 20231221 PL - Netherlands TA - Int J Food Microbiol JT - International journal of food microbiology JID - 8412849 RN - 0 (Amino Acids) SB - IM MH - Animals MH - Proteolysis MH - Amino Acids/metabolism MH - *Cheese/microbiology MH - *Lactobacillales/metabolism MH - Milk/microbiology OTO - NOTNLM OT - Amino acid OT - Asiago-PDO cheese OT - Comparative analysis OT - Metagenomics OT - Microbiota succession OT - Pathways OT - Ripening COIS- Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2023/12/29 00:42 MHDA- 2024/01/10 06:42 CRDT- 2023/12/28 18:05 PHST- 2023/08/07 00:00 [received] PHST- 2023/11/18 00:00 [revised] PHST- 2023/12/17 00:00 [accepted] PHST- 2024/01/10 06:42 [medline] PHST- 2023/12/29 00:42 [pubmed] PHST- 2023/12/28 18:05 [entrez] AID - S0168-1605(23)00465-8 [pii] AID - 10.1016/j.ijfoodmicro.2023.110548 [doi] PST - ppublish SO - Int J Food Microbiol. 2024 Feb 2;411:110548. doi: 10.1016/j.ijfoodmicro.2023.110548. Epub 2023 Dec 21.