Abstract
AbstractThe crucifers contain glucosinolates which through enzymatic hydrolysis give rise to toxicants that limit the use of oil‐free meal obtainable from this plant family. Seeds from three crucifers were used to test gamma irradiation to inactivate enzyme systems as a step toward detoxification. Seeds ofCrambe abyssinica Hochst (crambe), ground seeds ofSinapis alba L. (mustard), and seeds ofBrassica napus L. (rape) were subjected to gamma‐irradiation (6.25, 12.5, 25.0 and 50.4 Mrad) to inactivate thioglucosidase and/or destroy glucosinolates. Samples of ground seeds, their oil‐free meals, previously irradiated ground seeds and their oil‐free meals were assayed for glucose, a product of enzymatic hydrolysis of glucosinolates present in the crucifer seeds. The 50.4 Mrad exposure inactivated thioglucosidase but did not destroy glucosinolates. The fatty acid contents of extracted oils were affected. The amino acid profile of defatted crambe protein meal was affected, while that of white mustard was not.
Published Version
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