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Antioxidant activity by ABTS (2,2′-Azino-bis(3-ethylbenzothiazoline-6-sulfonic acid)) and DPPH (2,2 diphenyl-1-picrylhydrazyl) radical inhibition of the whey beverage with different concentrations of added hydrolyzed collagen (HC). Values are means ± SD based on 3 observations. Means within the same category (i.e., ABTS or DPPH) with different letters differ (p ≤ 0.05).
