提取黑豆皮中可溶性膳食纤维的工艺研究

Extraction Technology of Soluble Dietary Fiber in Black Bean Hull

以黑豆皮为原料提取可溶性膳食纤维(SDF),使用超声-微波协同方法提取黑豆皮中可溶性膳食纤维,并利用响应面法优化黑豆皮中可溶性膳食纤维的提取工艺条件。结果表明:提取的最优工艺条件为,料液比1∶40 g/m L,微波功率450 W,微波时间30 min,微波温度45℃,此条件下测得黑豆皮SDF得率为15.7280%,经验证实验得其接近理论值。本研究为黑豆皮高膳食纤维食品的开发及黑豆皮综合利用提供理论依据。

The soluble dietary fiber was extracted from black bean hull, and the black bean hull was extracted by the method of ultrasonic - microwave synergistic. The reaction condition of SDF was optimized by response surface methodology. The results showed that the optimum conditions were as follows .- the ratio of solid to liquid was 1 ： 35 g/mL, the microwave power was 440 W, the microwave time was 32 min and the microwave temperature was 48℃ . Under this condition, the yield of SDF was 15.630% and this result is close to the theoretical value. This study provides some theoretical guidance for the development of high-dietary fiber food and the comprehensive utilization of black bean hull.