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SDS-PAGE (Sodium dodecyl sulfate polyacrylamide gel electrophoresis) of cow whey hydrolysates produced using trypsin for different times: M, protein marker; lane 1, unhydrolyzed cow whey; lanes 2, 3, 4 and 5, cow whey after 60, 120, 180, and 240 min of hydrolysis, respectively. LF, lactoferrin; SA, serum albumin; β-Lg, β-lactoglobulin; α-La, α-lactalbumin. Data are representative of three independent experiments.
