2.3. Preparation of Sulforaphane-Rich Broccoli Sprouts and Placebo Powder
A sulforaphane-rich broccoli sprout/red radish sprout powder mix was prepared using BroccoPhaneThe placebo powder was prepared using spinach puree (Agro Jesenice, Zlatníky-Hodkovice, Czech Republic). The spinach puree was divided into aluminium dishes, cooled to −18 °C, lyophilized, and powdered. The placebo powder was filled into PE/AL storage bags containing 1.2 ± 0.1 g of powder load each.