Fig. 2.

LC–MS/MS proteomics shows that glycopeptides are abundant in sparkling wine. MS base peak chromatogram of a tryptic digest of cuvée aged 8 months depicting the retention time profile of the most intense peptides and glycopeptides eluting throughout the LC–MS/MS experiment. Pau, Seripauperin. Details of peptide and glycopeptide identifications are shown in Figure 3, supplemental Fig. S1, and supplemental Table S4.