natural whey starter, penicillin G, Streptococcus thermophilus, Lactobacillus delbrueckii, Lactobacillus helveticus, microbial community, freeze-drying, maximum residue limits
MCR-ROI, LC-HRMS, Parmigiano Reggiano, mountain, Metabolomics, authenticity
cheese by-products, enzymatic hydrolysis, free amino acids, peptides, fatty acids, simulated gastrointestinal digestion, high-protein ingredients