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斑点叉尾鮰鱼皮明胶制备工艺的优化

作  者:
李丁;刘海英;过世东
单  位:
江南大学食品学院
关键词:
鱼皮明胶;斑点叉尾;工艺优化;响应面分析
摘  要:
以斑点叉尾鱼皮为原料,采用低浓度氢氧化钠短时间浸泡鱼皮制备明胶。用中心组合实验设计(CCD)展开实验,以研究自变量氢氧化钠浓度(%,X1)、碱浸泡时间(h,X2)、水抽提温度(℃,X3)和水抽提时间(h,X4)对变量凝胶强度(g,Y)的影响。采用响应面分析优化工艺条件为:X1=0.889%,X2=25.794h,X3=49.295℃,X4=4.902h时,指标Y有最大值620.988g。测定了最优工艺条件下所得明胶的产率、凝胶强度和氨基酸组成。
译  名:
斑点叉尾鮰鱼皮明胶制备工艺的优化
关键词:
fish gelatin; channel catfish; optimization; response surface methodology
摘  要:
Gelatin was extracted from channel catfish (Ictalurus punctatus) using response surface methodology. Central Composite Design was adopted to optimize gelatin extraction. Concentration of NaOH (%,X1), treatment time (h,X2), extraction temperature (℃,X3) and extraction time(h,X4) were chosen as independent variables. Dependent variable was gel strength (g,Y). Optimal conditions were X1=0.889%; X2=25.794h; X3=49.295℃and X4=4.90h, and predicted values of multiple response optimal conditions were Y=620.988g. Yield, gel strength and amino acid composition of channel catfish skin gelatin were measured.

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