Optimization of parameters for obtaining surimi-like material from mechanically separated chicken meat using response surface methodology

Vega, William Renzo Cortez; Fonseca, Gustavo Graciano; Prentice-Hernández, Carlos


Surimi is a semi-processed washed fish mince protein concentrate mixed with cryoprotectants for frozen storage, which is the primary constituent of processed foods. Mechanically separated chicken meat (MSCM) is a common ingredient of comminuted sausages mainly due to its low price. The present work aimed to define the adequate parameters to obtain surimi-like material from MSCM using response surface methodology, and to characterize the chemical and textural properties of this product. The MSCM was utilized in the elaboration of surimi-like material using the bleaching method with sodium bicarbonate and sodium chloride solutions. For this purpose, the effect of process parameters viz: temperature (T=2, 7, and 12 °C), time (t=5, 10, and 15 min/cycles) and washing solution: MSCM ratio (R=2:1, 4:1, and 6:1w/w) were evaluated using response surface methodology. The highest composite design averages obtained were 10.7 % for protein content, 1,003.4 g for breaking force, 645.8 g.cm for gel strength, 9.0 N for cutting strength, and 24.1 N.s for work of shearing at the optimum combination of processing conditions of 7 °C, 10 min and 4:1 washing solution:MSCM ratio, corresponding to the central points of the proposed experimental design. The obtained models had high determination coefficients, explaining 95.85, 98.23, 98.41, and 96.08%of total variability in protein content, cutting strength, breaking force, and work of shearing variabilities, respectively. According to the folding test the surimi-like material presented the same characteristics of a high quality surimi (FT=5).

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