油浸法提取大、小茴香中反式茴香脑的研究

Study on Extraction of Trans-anethol from Illicium verum and Foeniculum vulgare by Immersion Method

研究以大、小茴香为材料,食用菜籽油为媒介,采用热油浸提的方法制备大、小茴香油。制备的茴香油用甲醇萃取得到萃取液,以反式茴香脑为评价指标,经气相色谱测定反式茴香脑。通过单因素试验确定最佳浸提温度、浸提时间,得到大、小茴香中反式茴香脑的最佳浸提工艺条件分别为:物料比1∶2,浸提温度140℃,浸提50min;物料比1∶2,浸提温度140℃,浸提30min。在此条件下反式茴香脑浓度分别为24.56,2.07mg/mL。

Take anise and fennel as materials, edible rap oil as medium, hot oil extraction method is adoptedto prepare anise and fennel oil. Extract liquor is gotten via anise and fennel oil extracted by methyl alcohol, and trans-anethol is as evaluation index; trans-anethol is detected by gas chromatography （GC）. During the process of anise and fennel oil preparation, the effects of extraction temperature and extraction time are investigated. The optimum extraction process conditions are. 1/2 （W/V） of anise to liquid （rapeseed oil） for 50 min at 140 ℃, 1/2 （W/V） of fennel to liquid （rapeseed oil） for 40 rain at 140℃ respectively. On these conditions, the concentration of trans-anethol is 24.56, 2.07 mg/mL separately.