越南巨竹叶不溶性膳食纤维制备研究  

Study on preparation of insoluble dietary fiber from dendrocalamus yunnanicus

作　　者：陶文亮[1] 邵明攀[2] 李焱[2] 田孟奎 

机构地区：[1]毕节学院,毕节551700 [2]贵州大学化学与化工学院,贵阳550025

出　　处：《中国食品添加剂》2014年第4期61-69,共9页China Food Additives

基　　金：贵州大学博士基金项目"赤水地区竹叶黄酮的提取分离与纯化关键技术"[贵大人基合字(2008)001]

摘　　要：为提高竹叶的综合利用价值,以越南巨竹叶为原料,采用酸碱法制备竹叶不溶性膳食纤维。通过对酸种类、酸液pH、酸解时间、酸解温度、酸用量比、NaOH浓度、碱解温度、碱解时间、碱用量等9个影响因素进行单因素和正交试验,获得制备竹叶不溶性膳食纤维最优工艺。实验结果显示,在pH 2.0,酸解温度85℃,酸解时间2h,酸解料液比1∶20,7%NaOH,碱解温度65℃,碱解时间140min,碱解料液比1∶15条件下,竹叶水不溶性膳食纤维含量为80.03%,得率为42.4%。竹叶不溶性膳食纤维的持水力和膨胀力分别为9.436g/g、7.091mL/g,有较好的理化特性。In order to improve the value of comprehensive utilization of bamboo, the optimal preparation of insoluble dietary fiber from dendrocalamus yunnanicus based on sequenrial treatment with alkaline and acid was investigated using single factor method combined with orthogonal arraydesign. Resuhs showed that the optimal technological process for preparing IDF from dendrocalamus yunnanicus are as follows ： pH value of sulfuric acid solution is 2.0, the temperature of acid hydrolysis is 85℃, the ratio of material to solution 1 ： 20 （g/mL）, and the time of acid hydrolysis is 2h; 7% aqueous NaOH solution, the temperature of alkaline hydrolysis is 65℃, the ratio of material to solution 1 ： 15 （g/ mL）, and the time of alkaline hydrolysis is 140min, under these conditions, the yield of IDF was42. 4%, purity was 80. 03%, the water holding capacity and swelling capacity of IDF were 9. 436g/g and 7. 091mL/g respectively.

关 键 词：水不溶性膳食纤维 酸碱法 持水力 膨胀力 

分 类 号：TS252[轻工技术与工程—农产品加工及贮藏工程]