【摘要】 以海带为原料,研究了酶与化学结合法提取膳食纤维的工艺技术。结果表明,提取膳食纤维的最佳工艺条件为在50℃条件下用20:1的蛋白酶与纤维素酶酶解1h,再用30倍1%NaCO3溶液在65℃提取2h,膳食纤维的产率可达24.7%,颜色为近白色。膳食纤维干基含量达74.5%,膨胀力为54mL/g,持水力为3201%。更多还原

【Abstract】 The enzymatic-chemical extraction method was studied for the production of dietary fiber from Laminaria japonica.The optimal conditions for extraction were determined as follows: the material was hydrolyzed at 50℃ for 1 h with protease and cellulose mixed at the ratio of 20:1,followed by the extraction at 65℃ for 2h with 30 volumes of 1% NaCO3 solution.Under this condition,the yield of dietary fiber reached 24.7% with the color near white.The dry dietary fiber content,expansibility and moisture retaining power were 74.5%,54 ml/g and 3201%,respectively.更多还原