响应面法研究脱脂豆粕渣膳食纤维提取工艺  

Optimization of extraction parameters of dietary fiber from defatted soybean meal residues by response surface method

作　　者：谢显华[1] 李国基[1] 

机构地区：[1]华南理工大学轻工与食品学院,广东广州510640

出　　处：《食品工业科技》2010年第2期220-223,共4页Science and Technology of Food Industry

基　　金：广东省科技计划项目(2007B080401010)

摘　　要：以脱脂豆粕渣为原料,利用响应面法研究了碱浓度、提取温度、提取时间以及料液比对脱脂豆粕渣膳食纤维提取率的影响。结果表明,回归模型能很好地反映各因素水平与响应值之间的关系,同时得出最佳的提取条件为:提取温度62℃,提取时间60min,料液比为1∶8,碱浓度0.68%。此时膳食纤维提取率为59.48%,持水力为5.3767g/g,溶胀性为6.35mL/g。The dietary fiber was extracted from defatted soybean meal residues by sodium hydroxide immersion method.The effects on the dietary fiber extraction rate of temperature, time, alkali concentration and the ratio between material and solution were studied.The results indicated that the generated regression model reflected the relationship between the independent variables and the responses. From the regression model, the optimum conditions of enzymatic pretreatment were identified as follows：temperature 62℃, time 60min, the ratio between material and solution 1：8,and alkali concentration 0.68%.Under the optimum conditions,the dietary fiber extraction rate was 59.48% ,the water holding capability and hydration capability were 5.3762g/g and 6.35mL/g, respectively.

关 键 词：响应面法 脱脂豆粕渣 膳食纤维 

分 类 号：TS201.23[轻工技术与工程—食品科学]