Factors Affecting Isoflavone Content in Soybean Seeds Grown in Thailand
(a) Chromatogram of isoflavones in a standard mixture of daidzin, genistin, daidzein, and genistein (6,000 ng/mL, each) and internal standard (IS, fluorescein 10,000 ng/mL). (b) Chromatogram of soybean seed sample (SJ 2 grown at SUT Farm) extracted with 80% methanol plus 2 M NaOH.
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