蔗渣中不溶性膳食纤维提取工艺  

Study on Process of Insoluble Dietary Fiber from Bagasse

作　　者：谢永红[1] 廖立敏[1] 

机构地区：[1]内江师范学院果类废弃物资源化四川省高等学校重点实验室,四川内江641112

出　　处：《江南大学学报（自然科学版）》2013年第3期331-334,共4页Joural of Jiangnan University (Natural Science Edition)　

基　　金：四川省教育厅青年基金项目(09ZB036)

摘　　要：以蔗渣为原料提取不溶性膳食纤维,探讨了料液比、pH值、提取时间、提取温度对提取率的影响。在单因素试验的基础上,通过L9(34)正交试验确定了影响膳食纤维提取率的最主要因素是料液比,得出蔗渣不溶性膳食纤维的最佳提取工艺参数为:料液比1∶20,pH值5.5,40℃提取45min,在此条件下提取率达53.75%。所制备的不溶性膳食纤维为淡黄色,膨胀力为4.5 mL/g、持水力为813.6%。Using bagasse as the raw material to extract water insoluble dietary fiber（ IDF）, we discuss how the solid-to liquid ratio, pH, extraction time and extraction temperature affect the extraction rate. Based on the orthogonal test, the results of L9 （3^4） orthogonal test show that the main factor was the solid-to liquid ratio and the optimum conditions are the solid-to liquid ratio of 1：20,pH 5.0 under 4℃ for 45 min. Under the optimal extraction conditions, the extraction rate of IDF is 53.75%. The products color is slightly yellow, the expansive capacity is 4.5 mL/g,and the water holding capacity is 813.6%.

关 键 词：蔗渣 不溶性膳食纤维 提取工艺 参数优化 

分 类 号：O636.11[理学—高分子化学]