Fig. 1.

Representative data to determine the specific activity of 10 mg ml⁻¹ myrosinase stock solutions. Rates were determined for the hydrolysis of sinigrin ([7]₀ = 250 μM) at 227 nm (Δε₂₂₇ = 6458 M⁻¹ cm⁻¹) for 5 min [2,3].