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Rheological Properties of the Mixture and Heat-induced Gel Prepared from Pork Salt Soluble Protein in Combined with Water Soluble Chitooligosaccharide and Chitosan  

Park, Sung-Yong (Department of Animal Science and Biotechnology Research Institute, Chonnam National University)
Wang, Seung-Hyun (Department of Animal Science and Biotechnology Research Institute, Chonnam National University)
Chin, Koo-Bok (Department of Animal Science and Biotechnology Research Institute, Chonnam National University)
Kim, Young-Dae (Department of Applied Chemistry, Chonnam National University)
Publication Information
Korean Journal of Food Science and Technology / v.36, no.4, 2004 , pp. 594-597 More about this Journal
Abstract
Effects of various levels and molecular weights (MWs) of chitooligosaccharides and chitosan with pork salt-soluble protein (SSP) on pH, moisture (%), viscosity, and hardness of protein-chitosan mixtures were determined in a model study. Mixtures of 0.15, 0.3, and 0.45% chitosan at various MWs (Low, 1.5 kDa; Medium, 30-50 kDa; High, 200 kDa) were dissolved in 3% SSP solution for measurement of pH and viscosity at $20^{\circ}C$. pH value increased with addition of 0.45% low MW of chitooligosacchearides into SSP (p<0.05), whereas decreased with addition of 0.45% medium MW and 0.3% or higher level of high MW chitosan. Viscosity increased with addition of more than 0.3% either medium or high MW chitosan (p<0.05), as compared to mixture with low MW chitolligosaccharide and control (p<0.05). No differences in gel pH, moisture, and hardness values were observed among treatments (p>0.05). Further study will be performed to evaluate rheological properties actual meat products with various levels and MWs of chitosan.
Keywords
chitooligosaccharides; chitosan; salt soluble protein (SSP); viscosity; gel hardness;
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