高压微波辅助提取牛蒡中牛蒡苷的研究(英文)

High Pressure Microwave-assisted Extraction of Arctiin from Fructus Arctii

优化高压微波辅助提取牛蒡中牛蒡苷的最佳工艺参数,然后通过扫描电镜分析高压微波辅助提取对牛蒡籽细胞壁的影响,最后将高压微波提取和其他提取方法进行对比。结果表明:高压微波提取牛蒡苷的最佳工艺参数为微波功率700W、提取时间197s和提取压力0.4MPa,此时牛蒡苷得率为9.010%;与其他提取方法相比,高压微波辅助提取是十分有效的和快速的,因为在高压的环境下微波辐照导致细胞壁的破裂和组织结构的坍塌。因此高压微波辅助提取牛蒡中牛蒡苷是可行的。

In this study, we investigated the high pressure microwave-assisted extraction （HPME） optimization of arctiin from Fructus Arctii, analyzed the effect of HPME on the cell wall structure of Fructus Arctii and made a comparison between HPME and three other methods, including atmospheric microwave-assisted extraction, Soxhlet extraction and heat reflux extraction. The optimum process parameters for arctiin extraction by HPME were determined as follows： microwave power 700 W, length of extraction 197 s and extraction pressure 0.4 MPa. Under such conditions, the arctiin yield was 9.010%. HPME had the advantages of efficiency and rapidity over the three other methods. This is likely to be due to tissue structure collapse and cell wall disruption caused by microwave irradiation in high pressure environment. In conclusion, HPME is a feasible method for arctiin extraction from f Fructus Arctii.