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Optimal HPLC Condition for Simultaneous Determination of Anthocyanins in Black Soybean Seed Coats  

Choung, Myoung-Gun (Dept. of Herbal Medicine Resource, Kangwon National University)
Publication Information
KOREAN JOURNAL OF CROP SCIENCE / v.53, no.4, 2008 , pp. 359-368 More about this Journal
Abstract
Black soybean has been widely utilized as foods and oriental medicinal materials. The pigmentation in the seed coat of black soybean is due to accumulate anthocyanins in the epidermis palisade layer. The anthocyanins of black soybean seed coat are considered as a parameter of quality evaluation of black soybean. Therefore, the purpose of this study was to investigate the most suitable HPLC condition for simultaneous determination of anthocyanins in black soybean seed coats extracts. The efficient HPLC analytical condition of D3G, C3G, and Pt3G contained extracts of black soybean seed coats was developed. The gradient elution employed a $250\;mm\;{\times}\;4.6\;mm$ i.d. YMC-pak ODS-AM 303 column. The gradient system was used two mobile phases. A gradient elution was performed with mobile phase A, consisting of 5% aqueous formic acid, and mobile phase B, comprising 5% formic acid - acetonitrile, and delivered at a flow rate of 0.7 mL/min as follows: $0{\sim}35\;min$, $90%\;A{\sim}60%\;A$; 36 min, 90% A; 46 min, 90% A. The UV-VIS. detection wavelength was set at 520 nm. The limit of detection (LOD) for D3G, C3G, and Pt3G were under 10 ng/mL.
Keywords
black soybean; anthocyanin; HPLC; simultaneous determination; limit of detection;
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Times Cited By KSCI : 6  (Citation Analysis)
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