Seasonal variation in glucosinolate content in Brassica oleracea crops grown in northwestern Spain
Brassica oleracea L. crops including kales, cabbages, and Tronchuda cabbages are widely grown in northwestern Spain and Portugal but little information is available on leaf glucosinolate content of these crops. The objectives were to determine the diversity for the total glucosinolate content and profile on leaves in a collection of 153 kales, 26 cabbages, and three Tronchuda cabbages varieties grown at two growing seasons and to determine the seasonal variation of glucosinolates in cabbages and Tronchuda cabbage varieties. Sinigrin, glucoiberin, and glucobrassicin were the major glucosinolates found in kales. Glucoiberin was the most common glucosinolate in Tronchuda cabbages in both planting seasons and in cabbages sown in fall season whereas glucobrassicin and glucoiberin were the most common glucosinolates in cabbages in spring season. In kales the total glucosinolate content ranged from 11.0 to 53 lmol g 1 dw, with a mean value of 26.3 lmol g 1 dw. Four kale varieties (MBG-BRS0468, MBG-BRS0476, MBG-BRS0060 and MBG-BRS0223) showed the highest total sinigrin or glucobrassicin contents. So, they could be good candidates for future breeding programs. In cabbages, the total glucosinolate content ranged from 10.9 to 27 g 1 dw. Total glucosinolate concentration during spring sowing (22 lm g 1 dw) was higher than those in fall sowing (13 lm g 1 dw). Regarding both high glucosinolate content and the agronomic value, MBGBRS0057 and MBG-BRS0074 could be good sources of beneficial glucosinolates. The presence of high concentrations of sinigrin, glucoiberin, and glucobrassicin warrant further search into their potential use to enhance the level of these important phytochemicals in these edible crops.
Main Authors: | , , , , |
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Format: | artículo biblioteca |
Language: | English |
Published: |
Elsevier
2008
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Subjects: | Brassica oleracea, Cabbage, Glucosinolates, Kale, Sinigrin, Tronchuda cabbage, |
Online Access: | http://hdl.handle.net/10261/9636 |
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Summary: | Brassica oleracea L. crops including kales, cabbages, and Tronchuda cabbages are widely grown in northwestern Spain and Portugal
but little information is available on leaf glucosinolate content of these crops. The objectives were to determine the diversity for the total
glucosinolate content and profile on leaves in a collection of 153 kales, 26 cabbages, and three Tronchuda cabbages varieties grown at
two growing seasons and to determine the seasonal variation of glucosinolates in cabbages and Tronchuda cabbage varieties. Sinigrin,
glucoiberin, and glucobrassicin were the major glucosinolates found in kales. Glucoiberin was the most common glucosinolate in Tronchuda
cabbages in both planting seasons and in cabbages sown in fall season whereas glucobrassicin and glucoiberin were the most common
glucosinolates in cabbages in spring season. In kales the total glucosinolate content ranged from 11.0 to 53 lmol g 1 dw, with a
mean value of 26.3 lmol g 1 dw. Four kale varieties (MBG-BRS0468, MBG-BRS0476, MBG-BRS0060 and MBG-BRS0223) showed
the highest total sinigrin or glucobrassicin contents. So, they could be good candidates for future breeding programs. In cabbages,
the total glucosinolate content ranged from 10.9 to 27 g 1 dw. Total glucosinolate concentration during spring sowing (22 lm g 1 dw)
was higher than those in fall sowing (13 lm g 1 dw). Regarding both high glucosinolate content and the agronomic value, MBGBRS0057
and MBG-BRS0074 could be good sources of beneficial glucosinolates. The presence of high concentrations of sinigrin, glucoiberin,
and glucobrassicin warrant further search into their potential use to enhance the level of these important phytochemicals in
these edible crops. |
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