Development of a method for producing selenium-enriched radish sprouts

The concentration of Se in sprouts increased exponentially with time in the presence of high Se supply (9.2 μmol Se g−1 seed). At lower rates of Se supply (≤2.5 μg Se g−1 seed) sprouts containing a target Se concentration were produced according to the linear relationship y = 0.91x, where y is the target Se concentration in μg Se g−1 FW, and x is the concentration of sodium selenate in water added at 8.3 mL of water g−1 dry seed. Glucosinolate profiles differed between broccoli and radish but the total glucosinolate concentration of the sprouts was unaffected by Se addition. Radish was more suitable than broccoli for producing sprouts high in both glucosinolates and Se.