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Figure 2.
SDS-PAGE conducted under reducing conditions of homogenized milk with or without 2% Tween 20. Lane 1: homogenized milk serum; Lane 2: serum of homogenized milk with Tween; Lane 3: homogenized milk cream; and Lane 4: cream of homogenized milk with Tween. The arrow represents the direction of migration (cas = casein, β-lg = β-lactoglobulin and α-la = α-lactalbumin).