溶剂热法提取生姜总黄酮的工艺研究

目的]建立新的提取生姜（Zingiber officinale Rosc.）总黄酮的方法,为防止生姜中总黄酮成分氧化提供依据,并为生姜总黄酮的工业化应用提供新的方向。方法]以生姜总黄酮得率为指标,通过单因素试验和L9（33）正交试验确定溶剂热法提取生姜总黄酮的最佳工艺。结果]溶剂热法提取生姜中总黄酮的最佳工艺为：乙醇体积分数70%,粒径0.5 mm,提取时间2 h,在此优化条件下,总黄酮得率最高为92%。结论]溶剂热法提取生姜总黄酮,具有实验装置简单、有机溶剂用量少和耗能低等特点,可操作性强。

Study on Process of Extracting Flavonoids from Zingiber officinale Rosc.by Resolver Hot Method

Objective]The research aimed to establish a new method of extracting flavonoids from Zingiber officinale Rosc.to provide basis for defending the oxidation of flavonoids from Zingiber officinale Rosc.and new way of its industrial application.Method]Taking the yield of flavonoids as index,the single factor and L9(33) orthogonal experiment were used to confirm the best process of extracting flavonoids from Zingiber officinale Rosc.by resolver hot method.Result]The best process of extracting flavonoids from Zingiber officinale Rosc.by resolver hot method was as follow: ethanol concentration 70%,particle size 0.5 mm,extraction time 2.0 h.Under the best extraction process,the flavonoids yield was up to 92%.Conclusion]The method of extracting flavonoids from Zingiber officinale Rosc.by resolver hot method have characteristics of the experiment set simple,the amount of organic solvent small,and lower energy consumable,and so on.So it has strong maneuverability.