Luping Kang^1,2, Shanbin Yang^1,2*, Yan Peng¹, Jiao Dai¹, Xingchun Ying¹

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¹ Pharmaceutical Engineering Institute of Engineering Research Center of Biotechnology of Active Materials (Ministry of Education) in Chongqing Normal University, Chongqing, China.
² Key Laboratory of Green Synthesis and Applications, College of Chemistry, Chongqing Normal University, Chongqing, China.
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Abstract: Penthorum chinense Pursh is rich in gallic acid, which has antioxidant, anti-inflammatory, anti-fungal and antitumor activities. In order to optimize their extraction conditions, various extraction parameters were chosen to identify their effects on gallic acid extraction. With extraction amount of gallic acid as index, based on single factor analysis, influence of solid/liquid ratio, ethanol concentration, fetch time and extraction temperature on extraction technology were investigated by orthogonal test. The optimization conditions for gallic acid extraction were determined as follows: ethanol concentration 60%, extraction time 2.5 h, temperature 90°C and solid/liquid ratio 1:30. The corresponding gallic acid content was 4.85%. This optimized extraction process was stable and feasible.

Keywords: Penthorum, Gallic Acid, Extraction Process, Orthogonal Design

Cite this paper: Kang, L. , Yang, S. , Peng, Y. , Dai, J. and Ying, X. (2015) Research on Extraction Process of Gallic Acid from Penthorum chinense Pursh by Aqueous Ethanol. Green and Sustainable Chemistry, 5, 63-69. doi: 10.4236/gsc.2015.52009.

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