반응표면분석법을 이용한 생선연육 스낵의 건조조건 최적화

Abstract

Surimi has been widely investigated for developing fish snacks; however, few studies have examined the optimal drying conditions of surimi for fish snacks. This study used a response surface methodology to optimize the drying conditions for the overall acceptance of fish snacks. The drying temperature (X1, 51-65°C) and drying time (X2, 1.5- 2.5 h) were chosen as independent variables. The dependent variables were overall acceptance (Y1, points), hardness (Y2, N), moisture content of the dried intermediate product (Y3, %), and volatile basic nitrogen of the fried final product (Y4, mg/100 g). The estimated optimal conditions for overall acceptance (Y1) were X1=64°C and X2=2 h. The predicted values of the dependent variables at the optimal conditions were overall acceptance (Y1)=8.60 points, hardness (Y2)=10.07 N, and moisture content of the dried intermediate product (Y3)=10.00% and were similar to the experimental values. Scanning electron microscopy images revealed that the drying conditions affected the microstructure of the fish snacks. Our results could be used to increase the productivity of fish snacks made by small- and mid-sized seafood companies.