Nat Prod Sci.  2015 Mar;21(1):30-33. 10.0000/nps.2015.21.1.30.

Rapid Isolation of Cyanidin 3-Glucoside and Peonidin 3-Glucoside from Black Rice (Oryza sativa) Using High-Performance Countercurrent Chromatography and Reversed-Phase Column Chromatography

Affiliations
  • 1College of Pharmacy and Integrated Research Institute of Pharmaceutical Sciences, The Catholic University of Korea, Bucheon 420-743, Korea. kdyoon@catholic.ac.kr
  • 2College of Medicine, The Catholic University of Korea, 505 Banpo-dong, Seocho-gu, Seoul 137-702, Korea.
  • 3College of Pharmacy and Research Institute of Pharmaceutical Science, Seoul National University, Seoul 151-742, Korea.

Abstract

Anthocyanins are water soluble plant pigments which are responsible for the blue, red, pink, violet colors in several plant organs such as flowers, fruits, leaves and roots. In recent years, anthocyanin-rich foods have been favored as dietary supplements and health care products due to diverse biological activities of anthocyanins including antioxidant, anti-allergic, anti-diabetic, anti-microbial, anti-cancer and preventing cardiovascular disease. High-performance countercurrent chromatography (HPCCC) coupled with reversed-phase medium pressure liquid chromatography (RP MPLC) method was applied for the rapid and efficient isolation of cyanidin 3-glucoside (C3G) and peonidin 3-glucoside (P3G) from black rice (Oryza sativa L., Poaceae). The crude black rice extract (500 mg) was subjected to HPCCC using two-phase solvent system composed of tert-butyl methyl ether/n-butanol/acetonitrile/0.01% trifluoroacetic acid (TBME/B/A/0.01% TFA, 1 : 3 : 1 : 5, v/v, flow rate - 4.5 mL/min, reversed phase mode) to give enriched anthocyanin extract (37.4 mg), and enriched anthocyanin extract was sequentially chromatographed on RP-MPLC to yield C3G (16.5 mg) and P3G (8.7 mg). The recovery rate and purity of isolated C3G were 76.0% and 98.2%, respectively, and those of P3G were 58.3% and 96.3%, respectively. The present study indicates that HPCCC coupled with RP-MPLC method is more rapid and efficient than multi-step conventional column chromatography for the separation of anthocyanins.

Keyword

Black rice; High-performance countercurrent chromatography; Reversed-phase medium pressure liquid chromatography; Cyanidin 3-glucoside; Peonidin 3-glucoside

MeSH Terms

Anthocyanins
Cardiovascular Diseases
Chromatography*
Chromatography, Liquid
Countercurrent Distribution*
Delivery of Health Care
Dietary Supplements
Flowers
Fruit
Plants
Trifluoroacetic Acid
Viola
Anthocyanins
Trifluoroacetic Acid
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