柠檬皮膳食纤维多酶复合提取工艺研究

Extraction Technology of Dietary Fiber from Lemon Peel by Multi-Enzyme Complex Method

以膳食纤维得率为评价指标,研究多酶复合提取柠檬皮可溶性膳食纤维(SDF)的最佳提取工艺。在复合酶制剂(纤维素酶与半纤维素酶比例1∶1)质量分数6%、酶解处理料液比1∶35(W/V)、酶解温度40℃、酶解时间3 h的条件下,膳食纤维得率为21.7%、持水力为13.21 g/g、溶胀性为15.82 mL/g、持油力为2.28 g/g、阳离子交换能力为1.48 mmol/g、维生素C含量为21.5 mg/100 g。

Based on the yield of SDF,the extraction technology of soluble dietary fiber from lemon peel was optimized by multi-enzymatic method as follows:the mass fraction of the compound enzyme(cellulase to hemicellulase ratio of 1∶1)was 6%,solid-liquid ratio in enzymolysis treatment of 1∶35(W/V),the enzymatic hydrolysis temperature of 40℃,enzymatic hydrolysis time of 3 h,the yield of dietary fiber attained of 21.7%.The holding power of 13.21 g/g,swelling capacity of 15.82 mL/g,oil holding force of 2.28 g/g,cation exchange ability of 1.48 mmol/g and VC content was 21.5 mg/100 g.