... 1%,1%,2%,5%,10% or customise. Test by HPLC Appearance Light yellow powder Packing kg, 1kg/bag ... .1%,0.4%,3%,5%,10%,13%,50%,95%; tested by HPLC Forms: Sulforaphane 0.1%, 0.4%,1%,3 ... as follows: 1. 100% natural broccoli seed extract, tested by HPLC; 2. High purity and large production capacity; 3 ... their mechanisms have been studied extensively and supported by more than 650 scientific publications to date. ...