Journal
FOOD CHEMISTRY
Volume 86, Issue 2, Pages 257-262Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2003.09.033
Keywords
fish; restructured; transglutaminase; salt; texture
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Restructured fish products from the filleting waste from silver carp (Hypophthalmichthys molitrix) were obtained using sodium caseinate (M), whey protein concentrate (WPC) (1%) or MTGase (0.3%) at different levels of salt (0%, 1% or 2%). The restructured products were obtained by incubating at 40 degreesC for 60 min and then at 90 degreesC for 20 min. Changes in the mechanical properties were studied by measuring changes in the textural profile analyses, punch test and torsional test analyses and expressible water. The mechanical properties increased when the salt level was also increased. The mechanical properties of non-salted and low-salt products were increased by using dairy proteins. Sodium casemate had a greater effect in improving mechanical properties than WPC. MTGase increased expressible water. The results obtained showed that the mechanical properties of low-salt restructured fish products can be improved by using dairy proteins combined with MTGase, with a slight increase in expressible water. (C) 2003 Elsevier Ltd. All rights reserved.
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