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目的:探讨甜橙枳实黄酮类成分的最佳提取工艺。方法:以甜橙枳实中主要黄酮类成分橙皮苷和柚皮芸香苷含量为指标,研究甜橙枳实提取挥发油后药渣采用乙醇提取黄酮类成分的最佳提取工艺。结果:甜橙枳实提取黄酮类成分的最佳工艺条件为:10倍量70%乙醇回流提取2次,每次0.5 h,提取液静置,上层药液浓缩后与沉降物合并。结论:甜橙枳实含有在冷水中溶解度小的有效成分,在制剂工艺提取后,提取液静置出现的沉降物不应轻易作为杂质弃去。
Objective: To explore the best extraction technology of flavonoids in Fructus Aurantii Immaturus. Methods: The main flavonoids hesperidin and grapefruit rutin content of sweet orange citrus aurantium as an index to study the extraction of volatile oil of sweet orange citrus aurantium after dregs using ethanol extraction of flavonoids best extraction process. Results: The optimum extraction conditions of flavonoids from Fructus Aurantii Immaturus were as follows: 10 times the amount of 70% ethanol was extracted twice, 0.5 h each time, the extract was allowed to stand, the upper liquid was concentrated and then combined with the sediment. CONCLUSION: Fructus Aurantii Immaturus contains the active ingredient with low solubility in cold water. After the preparation process is extracted, the sediment which appears when the extract is still standing should not be easily discarded as impurities.