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Isolation of cyanidin 3-glucoside from blue honeysuckle fruits by high-speed counter-current chromatography
Liang Chen1, Xiulan Xin1, Rong Lan1
1College of Bioengineering, Beijing Polytechnic, No.1 Shaoyaoju, Beijing 100029, China.
Abstract:
Blue honeysuckle fruits are rich in anthocyanins with many beneficial effects such as reduction of the risk of cardiovascular diseases, diabetes and cancers. High-speed counter-current chromatography (HSCCC) was used for the separation of anthocyanin on a preparative scale from blue honeysuckle fruit crude extract with a biphasic solvent system composed of tert-butyl methyl ether/n-butanol/acetonitrile/water/trifluoroacetic acid (2:2:1:5:0.01, v/v) for the first time in this paper. Each injection of 100 mg crude extract yielded 22.8 mg of cyanidin 3-glucoside (C3G) at 98.1% purity. The compound was identified by means of electro-spray ionisation mass (ESI/MS) and (1)H and (13)C nuclear magnetic resonance (NMR) spectra.
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