Effects of microbial transglutaminase, fibrimex and alginate on physicochemical properties of cooked ground meat with reduced salt level
2017
Atilgan, Esra | Kılıç, Birol
Effects of microbial transglutaminase (MTGase), fibrin/thrombin combination (fibrimex), alginate or combination of these binding agents on physicochemical parameters of cooked ground beef with reduced salt level were investigated. Seventeen treatments included three control (no binding agent) groups incorporated with varying concentrations of salt (0.5, 1, 2%, w/w) and fourteen treatment groups produced with MTGase or fibrimex or alginate or their combinations at 0.5 or 1% salt levels. The samples were analyzed for cooking loss (CL), pH, color, moisture, fat, protein, ash, salt, texture and TBARS. The results indicated that the use of MTGase or fibrimex or MTGase/fibrimex combination had significant effect on preventing textural deterioration caused by salt reduction. Even though the use of MTGase resulted in higher CL values, formulation of ground beef with fibrimex or alginate or MTGase/fibrimex/alginate combinations reduced CL when compared with the control groups. The use of fibrimex in ground beef resulted in a decrease in TBARS, lightness, redness and pH values. However, the use of alginate caused an increase in pH, lightness and redness values of ground beef. Based on the present study, the use of fibrimex or a combination of fibrimex with MTGase in the product formulation can be an effective strategy to reduce cooking loss, to improve or maintain the textural properties and to extend shelf life of cooked ground beef with reduced salt level.
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