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HPLC analysis of stilbenoids. The x-axis is time in minutes, and the y-axis is the absorbance at 340 nm. (a) HPLC chromatogram of ethyl acetate extract of the medium of hairy root culture of peanut treated with methyl-β-cyclodextrin for 72 h. Compounds: (1) arachidin-1 and (2) arachidin-3. (b) HPLC chromatogram of (1) arachidin-1 purified by HPCCC. (c) HPLC chromatogram of (2) arachidin-3 purified by HPCCC.
