Easy Method for the Approximate Quantitation of 4-Methylthio-3-Butenyl Isothiocyanate of Daikon (Raphanus sativus L.)

Figures & data

FIGURE 1 HPLC-UV chromatograms of the extracts of “Kanpaku” (A), “Kenkaaokubi” (B), “Taibyousoubutori” (C), and “Tenankoushin” (D). The asterisk indicates the location of the peak of 4-methylthio-3-butenyl isothiocyanate.

FIGURE 2 UV spectra of 4-methylthio-3-butenyl isothiocyanate (A) and the extracts of “Kanpaku” (B), “Kenkaaokubi” (C), “Taibyousoubutori” (D), and “Tenankoushin” (E).

FIGURE 3 Relationship between the 4-methylthio-3-butenyl isothiocyanate concentrations determined by UV spectrophotometry and HPLC analysis.