铁棍山药皮中黄酮化合物提取工艺条件优化  

Optimization of extract process conditions for flavonoids in the peel of Henan tiegun yam

作　　者：赵立庭 赵华[1] 刘阳[1] 田梁[1] 

机构地区：[1]天津科技大学化工与材料学院,天津300457

出　　处：《粮油食品科技》2016年第4期59-63,共5页Science and Technology of Cereals,Oils and Foods

摘　　要：为了确定热回流法提取铁棍山药皮中黄酮化合物的最佳工艺,采用响应面曲线分析方法,以提取时间、料液比、过筛目数、乙醇体积浓度为考察因素,研究各因素及其交互作用对铁棍山药黄酮化合物提取效果的影响。利用Minitab 16软件确定了铁棍山药中黄酮化合物的最佳提取工艺参数,为方便操作,将工艺参数调整为乙醇体积分数79%,料液比为0.023 g/m L,提取时间为75 min,过筛目数为120目,进行验证实验,实际测得平均得率为0.338 2 mg/g,接近预测值,实验数据稳定,说明回归模型能较好预测铁棍山药皮中总黄酮的提取得率。In order to confirm the best extract process conditions,the effect of the factors and the interactions among them on the extraction of flavonoids in the peel of Henan tiegun yam was researched by response surface method. The factors were extraction time,solid- liquid ratio,sieving mesh number and ethanol volume concentration. The optimal factors confirmed by software Minitab 16 were adjusted to ethanol volume fraction 79%,solid- liquid ratio 0. 023 g/m L,extraction time 75 min and sieving mesh number 120 mesh. The average yield was 0. 338 2 mg/g determined by verification test,close to the predicted value. The test data was stable,which indicated that the regression model could predict the yield rate of flavonoids in the peel of Henan tiegun yam.

关 键 词：铁棍山药 黄酮 热回流提取 响应曲面法 

分 类 号：TS201.4[轻工技术与工程—食品科学]