微波辅助法提取藤茶黄酮工艺优化

Optimization of Microwave-enhanced Extraction of Total Flavonoids from Ampelopsis grossedentata

[目的]提高藤茶中总黄酮提取率。[方法]以藤茶为原料,以水为溶剂,采用微波辅助提取的方式,研究了浸提温度、浸提时间、微波辅助加热时间、微波加热功率4个单因素对藤茶总黄酮提取率的影响,并在单因素的基础上进行正交试验得到藤茶总黄酮提取的最佳工艺条件。[结果]在100℃的温度下浸提时间60 min,中高档微波加热120 s的条件下,藤茶总黄酮的得率最高。[结论]优化微波辅助法工艺能提高藤茶黄酮提取率。

[Objective] The research aimed to improve the extraction rate of total flavone in Ampelopsis grossedentata.[Method] Taking Ampelopsis grossedentata as raw materials and water as solvent,the impact of the extraction temperature,extraction time,microwave-assisted heating time,microwave heating power of 4 single factors on extraction rate of total flavone were studied by microwave assisted extraction method,and orthogonal experiment optimum conditions of extracting total flavone from Ampelopsis grossedentata on the basis of single factor.[Result] The temperature at 100 ℃ under the extraction time 60 min,high-grade microwave heating under 120 s conditions,the Ampelopsis grossedentata flavonoids was the highest.[Conclusion] Optimization of microwave-enhanced extraction can improve extraction rate of total flavonoids from Ampelopsis grossedentata.