挤压膨化碱处理豆渣制备水溶性膳食纤维工艺的研究  

Extruding Technology for Soluble Dietary Fiber from Soybean Dregs Treated with Alkaline

作　　者：王文侠[1] 宋春丽[1] 曾凤彩[1] 刘长峰[1] 柯曼露[1] 

机构地区：[1]齐齐哈尔大学食品与生物工程学院,农产品加工黑龙江省普通高校重点实验室,黑龙江齐齐哈尔161006

出　　处：《大豆科学》2011年第6期1017-1021,共5页Soybean Science

基　　金：黑龙江省教育厅资助项目(1151gzd23)

摘　　要：以豆渣为原料,并在碱液处理后直接挤压膨化制备豆渣水溶性膳食纤维。以水溶性膳食纤维得率为指标,对物料水分、挤压温度、螺杆转速及氢氧化钠浓度进行了单因素试验。采用响应面分析方法,对挤压膨化提高碱处理豆渣水溶性膳食纤维的工艺条件进行了优化,并建立了物料水分、挤压温度、螺杆转速三因素的回归模型。确定了挤压膨化碱处理豆渣制备水溶性膳食纤维的最佳工艺条件为:物料水分26.94%,挤压温度183.48℃,螺杆转速106.48 r.min-1,碱浓度为5%。在优化条件下,水溶性膳食纤维得率由原来的4.26%提高到32.37%。Soybean dregs treated with alkaline was extruded to produce soluble dietary fiber. The effects of the water content, extrusion temperature, screw speed and alkaline concentration on the yield of soluble dietary fiber were studied respectively. Based on the results, response surface analytical method was used to optimize the conditions of producing soluble dietary fiber and model was established. The results showed that the optimum conditions of preparing soluble dietary fiber were as follows ： alkaline concentration 5 %, water content 26.94% , 183.48℃, 106.48 r·min^-1. Under optimal conditions, the yield of soluble dietary fiber was increased from 4.26% to 32.37%.

关 键 词：豆渣 碱处理 挤压膨化 水溶性膳食纤维 响应面分析 

分 类 号：TS209[轻工技术与工程—食品科学]