Abstract
This study was conducted to obtain the gelatin fraction with a high antioxidative activity from Alaska pollock surimi by-products using a two-step enzymatic hydrolysis and ultrafiltration. Among gelatin hydrolysates from refiner discharge of Alaska Pollock surimi, the highest antioxidative activity (81.5%) resulted from gelatin hydrolysate sequentially treated with Pronase E and Flavourzyme each for 2 hr. However, no difference was seen in the antioxidative activity of the second hydrolysate (Pronase EVFlavourzyme-treated hydrolysate) when compared to the permeate fractionated through a 10-kDa membrane. The results suggest that the Pronase E-/Flavourzyme-treated hydrolysate from refiner discharge gelatin of Alaska pollock surimi can be used as a supplementary raw material for improving health functionality.
Original language | English |
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Pages (from-to) | 163-170 |
Number of pages | 8 |
Journal | Fisheries and Aquatic Sciences |
Volume | 12 |
Issue number | 3 |
DOIs | |
Publication status | Published - 2009 Sept |
Keywords
- Alaska pollock
- Alaska pollock by-products
- Fish gelatin
- Fish gelatin hydrolysate
- Surimi refiner discharge
ASJC Scopus subject areas
- Oceanography
- Biochemistry
- Aquatic Science
- Molecular Biology