Production factors affecting antioxidant peptides from tilapia processing byproducts

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Abstract

This research aimed to elucidate significant factors affecting antioxidant capacity of protein hydrolysates from tilapia processing byproducts. Effects of protein type, substrate concentration (0.4-1.2%) and time of hydrolysis (0-60 min) on antioxidant abilities were investigated. Antioxidant activity of the alkaline-aided protein hydrolysate (APH) hydrolyzed by Protease G6 at 1.2% and 60 min hydrolysis was comparable to the control (minced tilapia muscle hydrolysates) and was more effective than the myofibrillar protein and sarcoplasmic protein hydrolysates. Principal component analysis showed that the APH exert their antioxidant capacity by peroxyl radical quenching ability. These findings provide evidence that the APH from fish byproducts can be alternatively used as a natural antioxidant.

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CITATION STYLE

APA

Wachirattanapongmetee, K., Katekaew, S., Sae-Eaw, A., & Thawornchinsombut, S. (2019). Production factors affecting antioxidant peptides from tilapia processing byproducts. Food Science and Technology (Brazil), 39(1), 181–187. https://doi.org/10.1590/fst.00218

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