A green strategy for obtaining anthraquinones from Rheum tanguticum by subcritical water

NWIPB OpenIR

	A green strategy for obtaining anthraquinones from Rheum tanguticum by subcritical water
	Zhang, Guoying; Chi, Xiaofeng
	2020
发表期刊	OPEN CHEMISTRY
卷号	18 期号:1
摘要	Rheum tanguticum is a traditional Chinese herbal medicine, which contains abundant anthraquinones. In this study, anthraquinones were efficiently extracted from Rheum tanguticum by subcritical water extraction (SWE). The parameters of extraction time (33-67 min), temperature (100-200 degrees C), and SW flow rate (1.4-4.6 mL/min) were optimized so as to achieve a high yield of the target product. A high yield of the total anthraquinones was achieved under the optimized SWE conditions of extraction time 54 min, extraction temperature 170 degrees C, and the flow rate 2.0 mL/min. The comparison between the SWE and traditional extraction techniques implied that the SWE is an efficient and green alternative method for the extraction of anthraquinones. Four anthraquinone glycosides were purified from the SWE extract by high-speed counter-current chromatography and identified as emodin-1-O-beta-D-glucoside, physcion-8-O-beta-D-glucopyranoside, chrysophanol-1-O-beta-D-glucoside, and chrysophanol-8-O-beta-D glucoside.
关键词	Rheum tanguticum anthraquinones subcritical water extraction high-speed counter-current chromatography
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/60455
专题	中国科学院西北高原生物研究所
推荐引用方式 GB/T 7714	Zhang, Guoying,Chi, Xiaofeng. A green strategy for obtaining anthraquinones from Rheum tanguticum by subcritical water[J]. OPEN CHEMISTRY,2020,18(1).
APA	Zhang, Guoying,&Chi, Xiaofeng.(2020).A green strategy for obtaining anthraquinones from Rheum tanguticum by subcritical water.OPEN CHEMISTRY,18(1).
MLA	Zhang, Guoying,et al."A green strategy for obtaining anthraquinones from Rheum tanguticum by subcritical water".OPEN CHEMISTRY 18.1(2020).