The enzyme myrosinase converts glucoraphanin to sulforaphane when plant cells are damaged.

“And it turns out that then there is an enzyme that the plant tissue contains called myrosinase. And that enzyme converts glucoraphanin, the precursor, which is stored in vacuoles in the plant cells to sulforaphane. And typically in nature, the plant does that as a protective mechanism.”

“the reason this this family of vegetables is a great source of sulfur Fame is because they contain the precursor to sulfur Fame called glucoraphanin glucoraphanin gets converted into sulforaphane once the plant tissue becomes basically broken so crush chewed chopped etc the enzyme responsible for converting glucomannan into sulfur fame is called myrosinase”