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The Glucosinolate Content of Some Fodder Brassicas
Author(s) -
Bradshaw John E.,
Heaney Robert K.,
Macfarlane Smith William H.,
Gowers Stuart,
Gemmell Dorothy J.,
Roger Fenwick G.
Publication year - 1984
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.2740350905
Subject(s) - glucosinolate , fodder , bulb , brassica , dry matter , glucoraphanin , agronomy , brassica oleracea , biology , horticulture , chemistry
The glucosinolate contents of six kales and five cabbages ( Brassica oleracea L.), four stubble turnips and six turnips ( B. campestris L.), and six swedes and six fodder rapes ( B. napus L.) were determined. As fodder brassica breeders wish to reduce the goitrogenicity of these crops, the concentrations of 2‐hydroxybut‐3‐enylglucosinolate (5‐vinyloxazolidine‐2‐thione is the goitrogenic hydrolysis product) and 3‐indolylmethylglucosinolate (the thiocyanate ion is the goitrogenic hydrolysis product) were of particular interest. High concentrations (mmol kg −1 dry matter) of 2‐hydroxybut‐3‐enylglucosinolate were found in stubble turnip leaf (8.12) and bulb (9.20), turnip bulb (9.97), swede bulb (5.66), and rape leaf (8.99) and stem (21.81) but not in kale or cabbage. In contrast, the concentration of 3‐indolylmethylglucosinolate was relatively high in cabbage head (6.39) and kale leaf (3.25) but not in the other crops.