Figure 5.

Peptide abundance per protein in Ras cheese at different ripening times. Analysis was carried out on low-molecular weight peptide obtained by ultrafiltration at 3 kDa from the water-soluble peptide fractions extracted from Ras cheese samples at 30 (R30 sample), 90 (R90 sample) and 180 (R180 sample) days of ripening. (a) Total peptides abundance per proteins in Ras samples. (b) Evolution of caseins peptide abundance during Ras cheese ripening. (c) Evolution of whey proteins peptide abundance during Ras cheese ripening. Data are reported as the sum of the intensity of each identified peptide measured as area under the peak (AUP) by Skyline analysis. The complete list of identified peptides and the semi-quantitative data can be found in Supplementary Table S2.