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J Food Sci

Title:		Gel strengthening effect of wood extract on surimi produced from mackerel stored in ice
Author(s):		Balange AK; Benjakul S; Maqsood S;
Address:		"Dept. of Food Technology, Faculty of Agro-Industry, Prince of Songkla Univ., Hat Yai, Songkhla 90112, Thailand"
Journal Title:		J Food Sci
Year:		2009
Volume:		74
Issue:		8
Page Number:		C619 - C627
DOI:		10.1111/j.1750-3841.2009.01322.x
ISSN/ISBN:		1750-3841 (Electronic) 0022-1147 (Linking)
Abstract:		"The effect of ethanolic kiam wood extract (EKWE) and commercial tannin (CT) on the gel properties of surimi produced from mackerel (Rastrelliger kanagurta) stored in ice for different times (0 to 12 d) was studied. During 12 d of iced storage, pH, total volatile base (TVB), trimethylamine (TMA), and trichloroacetic acid (TCA)-soluble peptide contents as well as thiobarbituric acid-reactive substances (TBARS) of mackerel mince increased while myosin heavy chain (MHC) band intensity decreased continuously (P < 0.05). The result suggested that deterioration, protein degradation, and lipid oxidation proceeded with increasing storage time. For corresponding surimi, TVB and TMA were almost removed and TBARS and TCA soluble peptide contents were decreased. Conversely, MHC became more concentrated. Decreases in gel-forming ability of surimi were observed when fish used as raw material were stored in ice for a longer time, regardless of EKWE or CT addition. Whiteness of surimi gel decreased and expressible moisture increased especially when the storage time increased. However, superior breaking force and deformation of surimi gel with 0.15% EKWE or 0.30% CT added, compared to those of the control gel were observed during the first 6 d of the storage. Thereafter, EKWE and CT had no gel enhancing effect on surimi. Therefore, freshness was a crucial factor determining gel enhancing ability of EKWE or CT toward mackerel surimi"
Keywords:		Animals Dipterocarpaceae/*chemistry Fish Products/*analysis Fish Proteins/analysis Gels Hydrogen-Ion Concentration Ice Lipid Peroxidation Methylamines/analysis Peptide Fragments/analysis *Perciformes Pigmentation Plant Extracts/*chemistry Quality Control;
Notes:		"MedlineBalange, A K Benjakul, S Maqsood, S eng Research Support, Non-U.S. Gov't 2009/10/06 J Food Sci. 2009 Oct; 74(8):C619-27. doi: 10.1111/j.1750-3841.2009.01322.x"