Extraction and Chromatographic Determination of Shikimic Acid in Chinese Conifer Needles with 1-Benzyl-3-methylimidazolium Bromide Ionic Liquid Aqueous Solutions

被引：83

作者：

Chen, Fengli ^{[1
]}

Hou, Kexin ^{[1
]}

Li, Shuangyang ^{[1
]}

Zu, Yuangang ^{[1
]}

Yang, Lei ^{[1
]}

机构：

[1] Northeast Forestry Univ, Key Lab Forest Plant Ecol, Minist Educ, Harbin 150040, Peoples R China

来源：

JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY | 2014年 / 2014卷

关键词：

MICROWAVE-ASSISTED EXTRACTION; BIPHENYL CYCLOOCTENE LIGNANS; ULTRASOUND BASED EXTRACTION; SAMPLE PREPARATION METHOD; ESSENTIAL OIL; ROSMARINIC ACID; CARNOSIC ACID; SEPARATION; ALKALOIDS; PROANTHOCYANIDINS;

D O I：

10.1155/2014/256473

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

An ionic liquids-based ultrasound-assisted extraction (ILUAE) method was successfully developed for extracting shikimic acid from conifer needles. Eleven 1-alkyl-3-methylimidazolium ionic liquids with different cations and anions were investigated and 1-benzyl-3-methylimidazolium bromide solution was selected as the solvent. The conditions for ILUAE, including the ionic liquid concentration, ultrasound power, ultrasound time, and liquid-solid ratio, were optimized. The proposedmethod had good recovery (99.37%-100.11%) and reproducibility (RSD, n = 6; 3.6%). ILUAE was an efficient, rapid, and simple sample preparation technique that showed high reproducibility. Based on the results, a number of plant species, namely, Picea koraiensis, Picea meyeri, Pinus elliottii, and Pinus banksiana, were identified as among the best resources of shikimic acid.

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