Patent ID: 8491944

Claim:
A process for obtaining a glucosinolate-containing extract from glucosinolate-containing plant parts or seeds or from an extract of glucosinolate-containing plant parts or seeds, the process comprising the steps of: a) extracting the glucosinolate-containing plant parts or seeds, or the extract of glucosinolate-containing plant parts or seeds with an extraction medium that comprises a solvent comprising a lower alcohol or ketone or a mixture thereof with water, to obtain an alcoholic or ketonic glucosinolate-containing extract; b) adsorbing the alcoholic or ketonic glucosinolate-containing extract from step a) onto a basic resin and eluting the alcoholic or ketonic glucosinolate-containing extract to produce an eluted alcoholic or ketonic glucosinolate-containing extract; c) adding sufficient base to the eluted alcoholic or ketonic glucosinolate-containing extract of step b) to increase the pH to at least 7.0 and to produce salts of the eluted alcoholic or ketonic glucosinolate-containing extract; and d) separating the resulting salts of the eluted alcoholic or ketonic glucosinolate-containing extract and removing volatiles under reduced pressure; wherein the plant parts or seeds are selected from the group consisting of broccoli, mustard, rapeseed, cauliflower, kohlrabi, cabbage, bok choy, turnip, radish, wasabi, horse radish and brussel sprouts.