Influence of processing procedure on the quality of Radix Scrophulariae: A quantitative evaluation of the main compounds obtained by accelerated solvent extraction and high‐performance liquid chromatography |
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| Authors: | Gang Cao Xin Wu Qinglin Li Hao Cai Baochang Cai Xuemei Zhu |
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| Institution: | 1. College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, P. R. China;2. Research Center of TCM Processing Technology, Zhejiang Chinese Medical University, Hangzhou, P. R. China;3. Zhejiang Cancer Hospital, Hangzhou, P. R. China |
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| Abstract: | An improved high‐performance liquid chromatography with diode array detection combined with accelerated solvent extraction method was used to simultaneously determine six compounds in crude and processed Radix Scrophulariae samples. Accelerated solvent extraction parameters such as extraction solvent, temperature, number of cycles, and analysis procedure were systematically optimized. The results indicated that compared with crude Radix Scrophulariae samples, the processed samples had lower contents of harpagide and harpagoside but higher contents of catalpol, acteoside, angoroside C, and cinnamic acid. The established method was sufficiently rapid and reliable for the global quality evaluation of crude and processed herbal medicines. |
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| Keywords: | Accelerated solvent extraction High‐performance liquid chromatography Processing procedures Quantitative evaluation Radix Scrophulariae |
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