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.
出处
《食品工业科技》
CAS
CSCD
北大核心
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)
关键词
响应面法
脱脂豆粕渣
膳食纤维
response surface method
defatted soybean meal residues
dietary fiber
