Abstract
Some labelled compounds were fed to horseradish leaves (Armoracia lapathifolia GILIB.) and yellow mustard seeds (Brassica juncea COSSON). DL-Homomethionine (2-14C, 15N) was directly incorporated into sinigrin in comparison with the other labelled compounds, however DL-allylglycine (2-14C, 15N) was incorporated insignificantly and DL-methionine (2-14C), sodium acetate (2-14C) and sodium malonate (2-14C) were incorporated without randomization. The relationships of their efficient precursors were discussed on sinigrin biosynthesis. Chemical degradation of the allyl thiourea derived labelled mustard oil was described.
