Fig. 4

Molecular weight distribution of peptides in hydrolysates. Molecular weight distribution (Da) of peptides in freeze dried hydrolysate from enzymatic hydrolysis of hens with viscera, head and feathers (HwH, plain) and hens without viscera, head and feathers (Hw/oH, striped). Abbreviations are given for the individual treatments used: 0,1% Protamex (Pr), 0,1% Corolase PP (PP) and 0,1% Papain + Bromelain (P + B). Peptide content in the different weight intervals are given as % of total protein content (\( \overline{\mathrm{x}} \) ± SD, n = 2)