Optimization of ultrasonic extraction by response surface methodology combined with ultrafast liquid chromatography-ultraviolet method for determination of four iridoids in Gentiana rigescens
文献类型: 外文期刊
第一作者: Pan, Yu
作者: Pan, Yu;Zhang, Ji;Zuo, Zhi-Tian;Jin, Hang;Wang, Yuan-Zhong;Li, Wan-Yi;Pan, Yu;Shen, Tao
作者机构:
关键词: Gentiana rigescens;iridoid glycosides;response surface methodology;ultrafast liquid chromatography-ultraviolet;ultrasonic assisted extraction
期刊名称:JOURNAL OF FOOD AND DRUG ANALYSIS ( 影响因子:6.079; 五年影响因子:6.36 )
ISSN: 1021-9498
年卷期: 2015 年 23 卷 3 期
页码:
收录情况: SCI
摘要: Gentiana rigescens is a rich source of iridoids and is commonly used as a folk medicine for treatment of hepatitis and cholecystitis for over 1000 years. A rapid ultrafast liquid chromatography ultraviolet method was developed for simultaneous determination of four major iridoid glycosides in G. rigescens. Response surface methodology based. on the Box -Behnken design was applied to optimize the extraction conditions of iridoid glycosides. Using the Shim-Pack XR-ODS III, four iridoid glycosides were efficiently separated with an acetonitrile:0.1% formic acid aqueous solution gradient at a flow rate of 0.25 mL/min for 8 minutes. All the regression equations revealed a good linear relationship (R-2 > 0.9995). The intraday and interday variations were <1.95%. The recoveries ranged from 99.7% to 103.2%. The optimal extraction conditions were as follows: methanol concentration, 82%; the ratio of liquid to solid material, 68:1 (mL/g); and extraction time, 32 minutes. The yield of the four iridoid glycosides under the optimal process was found to be 63.08 mg/g, which was consistent with the predicted yield. In addition, the total content of 50 cultivated samples from Lincang, Yunnan, China, was within the range of 33.6-113.26 mg/g, which provides a more reasonable foundation for utilization of G. rigescens. Copyright (c) 2015, Food and Drug Administration, Taiwan. Published by Elsevier Taiwan LLC. All rights reserved.
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