FIGURE 1.

Elution diagram of the oyster protein hydrolysates using macroporous adsorption resin DA201‐C. Bioactive peptide fractions, PEP‐1 and PEP‐2 (a), TRYP‐1 and TRYP‐2 (b), MIX‐1 and MIX‐2 (c); mobile phase, 20%, 40% and 60% ethanol, were respectively used to elute the single peak faction, at a flow rate of 5 ml/3 min; Detection, absorbance at 220 nm; Circle indicates OD₂₂₀