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. 2013 Jan 16;8(1):e53955. doi: 10.1371/journal.pone.0053955

Figure 1. Compositional differences of collagen hydrolysates as determined by MALDI-TOF-MS.

Figure 1

Mass spectra obtained in the (A–C) linear and (D–F) reflector mode reveal differences between (A,D) CH-Alpha®, (B,E) RDH, and (C,F) RDH-N with respect to peptide composition, as represented by the molecular weight distribution of the peptides, and the average molecular weight of each collagen hydrolysate preparation.