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Published on: February 10, 2018
Mechanical attributes, colloidal interactions, and microstructure of meat batter influenced by flaxseed flour and
Hamed Ghafouri-Oskuei1, Afshin Javadi2, Mohammad Reza Saeidi-Asl1
1Department of Food Science and Technology, Sabzevar Branch, Islamic Azad University, Sabzevar, Iran.
Abstract:
The present investigation deals with the textural properties, colloidal interactions, and morphology of emulsified meat systems in the presence of flaxseed flour (FF) and tomato powder (TP). The results displayed that the emulsifying capacity and texture of raw and cooked meat batters were significantly affected following the addition of TP and FF. The cooked emulsified sausages containing 3% of FF and 3% (w/w) of TP showed the highest values for hardness and cohesiveness, as compared to the control and 6% (w/w) of FF samples. The outcomes of mechanical shearing forces and SEM showed the formation of a gel-type matrix around the unabsorbed protein in TP-FF batters. These patterns were then confirmed by the higher values of GN° (van Gurp Palmen) associated with an increase in the elasticity and the molecular entanglement. In contrast, large fat globules, low entanglement, and protein cross-linking were observed in meat batters with 6% FF.
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