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Walnut protein concentrate (juglans neotropica diels), gastrointestinal digests and their antioxidant capacity

Abstract:

Walnut Protein Concentrate (WPC) showed eleven bands. WPC at pH 3.0 to pH 6.0 and gastrointestinal digests of WPC showed antioxidant activity using the FRAP, ABTS and ORAC methods. WPC at pH 6.0 showed the highest value using ORAC, 730 μmoL TE/ g protein. TBARS in vitro and in vivo methods were used to evaluate lipid peroxidation of WPCs and their digests. In vitro TBARS of WPC at pHs 3.0 to pH 6.0 presented values between 84.28% to 86.61% TBARS respectively. In vivo TBARS of WPC at pHs 3.0 to pH 6.0 presented values between 65.97% to 72.23% TBARS.