Dehydrated Broccoli Processing
The botanical entity is Brassica oleracea var. italica Plenck, one of the cultivar groups of wild cabbage that also includes cabbage, kale, cauliflower and Brussels sprouts. All of these share the species name, and they differ in the organ that breeders enlarged: leaves for kale, a compact head for cabbage, and the flower cluster for broccoli. The part used here is the floret head with its stalk, and broccoli sprouts, which are germinated seedlings, are a different product.
The raw material is fresh broccoli head. Florets and trimmed stalk are washed, cut, dried in warm air and ground to powder. Drying is the only step that changes the vegetable. Heat also inactivates myrosinase, the enzyme that turns glucosinolates into reactive isothiocyanates when cells are crushed, so the powder tastes of cooked broccoli and not of the sharper raw vegetable.
Broccoli is harvested as a cool-season crop before the buds open into yellow flowers. Heads left too long turn yellow and bitter, so processors take them while the heads are tight and deep green. Yellowing is also what dried broccoli does under heat, because chlorophyll degrades to pheophytin, which is why the powder reads olive and not bright green.
Stalks are part of the product. They are sweeter and starchier than florets and contribute fiber, so the powder has a milder, more rounded flavor than a floret-only material would give.












