Fractionation of gelatin hydrolysates with antioxidative activity from alaska pollock surimi refiner discharge

Chan Ho Park, Hyung Jun Kim, Kyung Tae Kang, Joodong Park, Min Soo Heu, Jae W. Park, Jin Soo Kim

Research output: Contribution to journalArticle

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 languageEnglish
Pages (from-to)163-170
Number of pages8
JournalFisheries and Aquatic Sciences
Volume12
Issue number3
DOIs
Publication statusPublished - 2009 Sep

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

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