Optimal Extraction of Gallic Acid from Suaeda glauca Bge. Leaves and Enhanced Efficiency by Ionic LiquidsReport as inadecuate




Optimal Extraction of Gallic Acid from Suaeda glauca Bge. Leaves and Enhanced Efficiency by Ionic Liquids - Download this document for free, or read online. Document in PDF available to download.

International Journal of Chemical Engineering - Volume 2016 2016, Article ID 5217802, 9 pages -

Research ArticleJiangsu Provincial Key Laboratory of Coastal Wetland Bioresources and Environmental Protection, School of Chemistry and Chemical Engineering, Yancheng Teachers University, Xiwang Road, Yancheng, Jiangsu 224051, China

Received 23 November 2015; Revised 4 January 2016; Accepted 11 January 2016

Academic Editor: Alírio Rodrigues

Copyright © 2016 Xin-Hong Wang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The ultrasound-assisted extraction UAE was initially applied to extract gallic acid from Suaeda glauca Bge. using 70% ethanol as extraction solvent. Temperature, liquid-solid ratio, and extraction time were optimized by response surface methodology RSM, obtaining maximum levels of gallic acid 6.30 mg·g

at 51°C, 19.52 mL·g

, and 42.68 min, respectively. The obtained model was statistically significant . The verification experiments at the optimum conditions yielded gallic acid for 6.21 mg·g

. Subsequently, under optimal conditions, four ionic liquids were used to extract gallic acid from Suaeda glauca Bge. The results indicated that the presence of 1-hexyl-3-methylimidazolium chloride allowed increasing the EE of gallic acid up to 8.90 mg·g

. This might be interpreted in terms of the molecular interaction between ionic liquid and gallic acid. The use of ionic liquids involves a stronger gallic acid extraction capacity than conventional organic volatile solvents. A promising alternative process is proposed for the extraction of gallic acid of Suaeda glauca Bge.





Author: Xin-Hong Wang, Chen Cai, and Xue-Mei Li

Source: https://www.hindawi.com/



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