Glucoraphanin glucosinolate

A related glucosinolate glucoraphanin is found in broccoli, and is associated with beneficial medicinal properties of this vegetable. This is hydrolysed to the isothiocyanate sulforaphane, which is believed to induce carcinogen-detoxifying enzyme systems. 

Progoltrin 2-hydroxy 3,4-butenyl glucosinolate Glucobrassicin Indol 3-yl methyl glucosinolate Glucoraphanin 4-methyl sulfinyl butyl glucosinolate... 

Glucoiberin, the glucosinolate presursor of iberin, had the same retention time as glucoraphanin in HPLC analysis hence, there might be a small amount of glucoiberin in both mature broccoli and broccoli sprouts. 

Broccoli sprouts appear to be an excellent source of glucoraphanin/SF. Standard methods that have been developed for selecting the seeds, growing the sprouts, and analyzing the content of glucosinolates/ITCs [12, 29, 79, 80] hold out the possibility of sprouts with well-defined glucoraphanin/sulforaphane content being made available to the public. 

Glucoraphanin, the main glucosinolate in broccoli and cauliflower young sprouts, can be readily converted in their derived isothiocyanates (sulforaph-ane, raphanin) (Fig. 28). 

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