表面活性剂协同提取塔罗科血橙皮中果胶的工艺

The co-extraction technology of the pectin from Tarocco blood orange peel with surfactant

以塔罗科血橙皮为原料,通过添加表面活性剂提取了其中的果胶。考查了单因素:提取时间、提取温度、料液比、p H值及表面活性剂用量对果胶得率的影响。采用L9(34)正交实验得出最优条件为:在提取温度为90℃时,料液比为1:25、提取时间为210 min、表面活性剂用量为0.7%、p H为1.5。在最优条件下果胶得率为33.634%,产品含水率为5.42%,总半乳糖醛酸含量为67.2%。实验为添加表面活性剂提取塔罗科血橙皮中的果胶提供了参考依据。

With Tarocco blood orange peel as material, the pectin was extracted by the addition of the surfactant. The effect of the single factors, such as the extracting time, extracting temperature, solid-liquid ratio, p H and the amount of the surfactant, on the yield of the pectin, were studied. With L9（34） orthogonal experiments, the optimal conditions were gotten and that were the extracting temperature of 90 ℃, the solid-liquid ratio of 1：25, the extracting time of 210 min, the amount of surfactant of 0.7%, and the p H of 1.5. Under the optimal conditions, the yield of the pectin could reach 33.634%, the moisture content of the product was 5.42%, and the content of the galacturonic acid was 67.2%. The reference conditions were provided for the extraction of the pectin in the Tarocco blood orange peel with the method of adding surfactant by the experiments.