橙皮苷的提取工艺研究

目的]研究以95％甲醇和碱液做溶剂从橘皮中提取橙皮苷的工艺条件。方法]通过对溶剂、甲醇浓度、温度、pH值、浸提次数进行试验确定提取橙皮苷的最佳工艺条件。结果]以桔皮为原料，用碱液和甲醇做溶剂提取橙皮苷的最佳工艺条件为：粗苷：甲醇：碱液W（NaOH）为30％]=11：30：8，在85℃以上浸泡4h，调节pH值为4。即先将甲醇和碱液搅拌混合，再将粗苷加入，继续搅拌1h使粗苷溶解完全，然后过滤至滤液澄清，用盐酸调滤液的pH值至4，静置沉淀，过滤，滤饼用煮沸过的水洗涤至无色，甲醇滤液精馏回收，橙皮苷的收率迭65％以上。结论]此方法操作简便，易控制且提取橙皮苷的效率较高。

Research on the Extraction Technology of Hesperidin

Objective] The purpose was to research the technological condition of extracting hesperidin from orange peel with 95% methanol and alkali liquor as solvent.Method] Through the experiment conducted on solvent,methanol concn.,temperature,pH value and extraction times,the optimum technological condition of extracting hesperidin was determined.Result] With orange peel as raw material,the optimum technological condition of extracting hesperidin with alkali liquor and methanol as solvent was as follows: crude ...