Genotypic and climatic influences on the concentration and composition of flavonoids in kale (Brassica oleracea var. sabellica)
Genotypic and climatic influences on the concentration and composition of flavonoids in kale (Brassica oleracea var. sabellica)
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DOI：
10.1016/j.foodchem.2009.09.004
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发表时间：
2010-04-15
期刊：
影响因子：
8.8
通讯作者：
Krumbein, Angelika
中科院分区：
文献类型：
--
作者：
Schmidt, Susanne;Zietz, Michaela;Krumbein, Angelika
本研究的目的是确定甘蓝中黄酮苷元的组成和浓度、对基因型的依赖以及它们与降温和全球辐射的交互作用。8个甘蓝品种，包括杂交和传统的老品种，在大田试验中种植，每隔4周收获4次。传统的老品种；特别是含有高浓度的类黄酮。在所研究的所有品种中，山奈酚是主要的黄酮苷元，其次是栎素和异鼠李素，在8个品种中有6个品种中检出了山奈酚。此外，在8个品种中，有6个品种的总黄酮浓度随着温度和总辐射的下降而保持不变。在这6个品种中，有5个品种的槲皮素含量增加。而山奈酚浓度降低。有趣的是，尽管辐射水平降低，但所有被调查的品种的栎素/山奈酚的比率都增加了，这表明温度下降的影响可能是这种影响的原因。(C)2009爱思唯尔有限公司。保留所有权利。
The aim of this study was to determine the composition and concentration of flavonoid aglycones in kale, the dependence on genotype and their interaction with decreasing temperature and global radiation. Eight kale cultivars, comprising hybrid and traditional, old cultivars, were grown in a field experiment and harvested four times at 4-week intervals. The traditional, old cultivars; in particular contained high concentrations of flavonoids. In all of the investigated cultivars, kaempferol was the main flavonoid aglycone, followed by quercetin and isorhamnetin, which was quantified in six of the eight cultivars. Furthermore, in six of the eight cultivars, the total concentration of flavonoids remained unchanged with decreasing temperature and global radiation. The quercetin concentration increased in five of these six cultivars. whereas the kaempferol concentration decreased. Interestingly, the quercetin-to-kaempferol ratio increased in all of the investigated cultivars, despite the fact that the radiation level decreased, suggesting that the impact of the decline in temperature could be responsible for this effect. (C) 2009 Elsevier Ltd. All rights reserved.