基于响应面分析制备豆渣膳食纤维酸处理的工艺优化

Acid Treatment Process of Okara Dietary Fiber Based on Response Surface

采用酸处理和酶处理相结合的方法研究了制备豆渣膳食纤维时酸处理制备工艺的优化,以酸处理的p H、温度及时间作单因素试验,并在单因素试验的基础上,利用响应面分析软件对酸处理3个单因素条件的交互影响作用进行了研究。结果表明,处理时间和温度的交互作用对膳食纤维提取的影响显著,通过响应面优化酸酶法提取豆渣膳食纤维工艺,确定酸处理的最佳条件为p H 3.48、温度70.60℃、时间100.66 min,所得膳食纤维得率为72.278 3%。

Combing acid treatment with enzyme treatment, the technology of dietary fiber was optimized by response surface.The interaction effect between three factors were studied. The variance analysis showed that the interaction of extraction time and temperature on extraction was significant and the interaction effect between extraction time and extraction temperature on the dietary fiber was also significant. The best conditions of acid treatment were determined as follows ： pH 3.48, extraction temperature 70.60 ℃ and extraction time 100.66 min.