Inhibition of Protease Activity in Muscle Extracts and Surimi from Pacific Whiting, Merluccius productus, and Arrowtooth Flounder, Atheresthes stomias

Porter, Roy W. and Koury, Barbara and Kudo, George (1993) Inhibition of Protease Activity in Muscle Extracts and Surimi from Pacific Whiting, Merluccius productus, and Arrowtooth Flounder, Atheresthes stomias. Marine Fisheries Review, 55(3), pp. 10-15.

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Abstract

Muscle extracts of Pacific whiting, Merluccius productus, and arrowtooth flounder, Atheresthes stomias, were assayed for proteolytic activity using azocasein as a substrate. Pacific whiting extracts showed maximum activity at pH 5.0-5.2 and a temperature of 50°C, while arrowtooth flounder extracts had maximum activity at pH 5.5 and 55°C. Three sources of inhibitors (potatoes, egg white, beef plasma protein) were evaluated in vitro for inhibition of protease activity. All three were found to be effective inhibitors in crude muscle extracts. Further studies utilizing these inhibitors in surimi showed that potato was equivalent to both egg white and beef plasma protein in preserving the gel forming characteristics ofheated kamaboko in both species.

Item Type: Article
Title: Inhibition of Protease Activity in Muscle Extracts and Surimi from Pacific Whiting, Merluccius productus, and Arrowtooth Flounder, Atheresthes stomias
Personal Creator/Author:
CreatorsEmail
Porter, Roy W.
Koury, Barbara
Kudo, George
Refereed: Yes
Journal or Publication Title: Marine Fisheries Review
Volume: 55
Number: 3
Page Range: pp. 10-15
Date: 1993
ISSN: 0090-1830
Issuing Agency: United States National Marine Fisheries Service
Subjects: Chemistry
Fisheries
Item ID: 9864
Depositing User: Patti M. Marraro
Date Deposited: 16 Aug 2012 20:41
Last Modified: 16 Aug 2012 20:41
URI: http://aquaticcommons.org/id/eprint/9864

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