Linear Heating Rate Affects Gelation of Alaska Pollock and Pacific Whiting Surimi |
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Authors: | JIRAWAT YONGSAWATDIGUL JAE W PARK |
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Affiliation: | Authors Yongsawatdigul and Park are with Oregon State Univ., Seafood Laboratory, 250 36th St., Astoria, OR 97103–2499. Address inquiries to Dr. Jae W. Park. |
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Abstract: | Shear stress of Alaska pollock surimi gels with and without beef plasma protein (BPP) increased as heating rate decreased, but shear strain was unaffected. An increase in shear stress was accompanied by an increase of cross-linked myosin heavy chain. Slow heating rates increased proteolysis in Pacific whiting surimi as shown by degradation of myosin heavy chain and low shear stress and shear strain. Proteolysis of whiting surimi was lessened by BPP to a greater extent at rapid heating rates (20 and 30°C/min) than at slow heating rates (1 and 5°C/min). |
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Keywords: | heating rate whiting pollock surimi gelation |
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