Journal
CYTA-JOURNAL OF FOOD
Volume 21, Issue 1, Pages 646-655Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/19476337.2023.2272627
Keywords
Chicken plasma protein; cohesiveness; cryoprotectant; gelling agent; optimization; protein solubility; RSM; sorbitol; surimi; whiteness
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This study determines the minimum amounts of chicken blood plasma and sorbitol that affect the protein solubility, cohesiveness, and whiteness of surimi. The optimal conditions for these properties were found to be a plasma protein concentration of 0.79% and a sorbitol concentration of 4.68%. The predicted values closely matched the experimental values, demonstrating the validity of the response surface methodology model. These findings are valuable for improving surimi production.
This research aimed to determine the minimum amounts of chicken blood plasma (X-1) and sorbitol (X-2) that affect the protein solubility (Y-1), cohesiveness (Y-2), and whiteness (Y-3) of surimi. Response surface methodology (RSM) generated 13 experimental designs ranging from 0.5% to 2.5% for chicken plasma protein (CPP) and 2% to 6% for sorbitol. The results show that optimal conditions for protein solubility, cohesiveness, and a whiteness of surimi were achieved with a CPP concentration of 0.79% and a sorbitol concentration of 4.68%. This resulted in a predicted protein solubility of approximately 49.09 mg/ml, cohesiveness of 0.654 and whiteness value of 75.55. Meanwhile, the optimal experimental values for protein solubility, cohesiveness, and whiteness were found to be 46.56 mg/ml, 0.65, and 75.55, respectively. The measured values and predicted values have no statistically significant difference (p > .05), indicating the validity of the RSM model. These findings are valuable for improving surimi production.
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