Characterization of acid-soluble collagen from alaska pollock surimi processing by-products (refiner discharge)

Chan Ho Park, Jae Hyoung Lee, Kyung Tae Kang, Jae W. Park, Jin Soo Kim

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

The study was carried out to examine on the refiner discharge from Alaska pollock as a collagen resource by characterizing biochemical and functional properties of collagen. The refiner discharge from Alaska pollock surimi manufacturing was a good resource for collagen extraction according to the results of total protein, heavy metal, volatile basic nitrogen, collagen content, amino acid composition, and thermal denaturation temperature (TDT). TDT of acid soluble collagen from refiner discharge showed 20.7°C, which was similar to that of collagen from Alaska pollock muscle and was higher than that of collagen from Alaska pollock skin. TDT of acid-soluble collagen from refiner discharge was, however, lower than those of skin collagens from warm fish and land animal. Acid-soluble collagen from refiner discharge of Alaska pollock could be used as a functional ingredient for food and industrial applications according to the results of water and oil absorption capacities, and emulsion properties. In addition, if the thermal stability of the acid-soluble collagens is improved, collagen from refiner discharge from Alaska pollock could be more effectively used.

Original languageEnglish
Pages (from-to)549-556
Number of pages8
JournalFood Science and Biotechnology
Volume16
Issue number4
Publication statusPublished - 2007

Keywords

  • Alaska pollock
  • Collagen
  • Refiner discharge
  • Surimi
  • Surimi by-product

ASJC Scopus subject areas

  • Biotechnology
  • Food Science
  • Applied Microbiology and Biotechnology

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