高品质可溶性膳食纤维的制备工艺研究  

Study on the technics of preparing soluble dietary fiber of high quality

作　　者：涂宗财[1] 林德荣[1] 刘成梅[1] 刘光宪[1] 王辉[1] 豆玉新[1] 郑明[1] 

机构地区：[1]南昌大学食品科学教育部国家重点实验室,江西南昌330047

出　　处：《食品工业科技》2008年第10期149-152,共4页Science and Technology of Food Industry

基　　金：国家科技部农业成果转化基金(03EFN217200351)

摘　　要：为实现大豆资源的充分高效利用,以制作豆腐、豆浆后下脚料豆渣为原料,应用动态超高压微射流作用、离心分离技术和喷雾干燥技术制备大豆可溶性膳食纤维;测定了可溶性膳食纤维的持水力、膨胀率和溶解性;并研究以酶-碱结合法提取大豆可溶性纤维,以碱浓度、酶用量、碱提温度和酶解时间为四因素,通过正交实验得出最佳工艺条件为:碱浓度0.6%,碱提温度65℃,酶解时间55min,酶用量22万U时,酶-碱结合法制备的大豆可溶性膳食纤维含量(SDF/TDF)可达到21.35%。经140MPa微射流均质机处理,其SDF/TDF含量可提高到37.42%,其持水力、膨胀率和溶解度分别为10.697g/g、830%和22.38g/100mL。In order to make full use of soybean resources, we took the bean waste from beancurd and soybean milk as raw material to produce soybean soluble dietary fiber（SDF） in the application of instantaneous ultrahigh pressure process, the centrifugal separation technology and the spray drying technology. The retention ability, the expansion rate and the solubility of SDF were determined. And we studied to extract soybean SDF in the use of enzyme-alkali technique, discovering that the optimal preparing condition of the four factors： the caustic concentration, the enzyme amount used, the alkali reactive temperature and the enzymolysis time. Through the orthogonal experiment,the best technology was： the caustic concentration 0.6%, the alkali reactive temperature 65℃, the enzymolysis time 55min, the enzyme amount 220000U. Under this condition, the content of soybean SDF （SDF/TDF） produced through the use of enzyme-alkali technique reaches 21.35%. After processed by the micro jet flow viscolizer under the operation pressure of 140MPa, the SDF/TDF could increase to 37.42%. The retention ability, expansion rate and solubility were respectively 10.697g/g,830% ,22.38g/100mL.

关 键 词：大豆可溶性膳食纤维 动态超高压微射流作用 酶-碱结合法 离心分离技术 

分 类 号：TS201.23[轻工技术与工程—食品科学]