Francisco Tomás-Lorente, Manuela M. García-Grau, Federico Ferreres, Francisco A. Tomás-Barberán
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引用次数: 0
摘要
蚕豆在种子成熟阶段收集的地上部分没有经济价值，因此被丢弃。然而，这些叶子和茎含有相当数量的黄酮醇苷。试验了两种提取方法:一种是用甲醇-水作为提取溶剂，另一种是用碱性水。用碱性水提取时，黄酮类化合物的提取率略高(约1 g /kg新鲜植物材料)，但这种提取方法水解了乙酰基衍生物，留下的几乎都是去乙酰化的化合物。
Flavonol glycosides from waste broad bean aerial parts
The aerial parts of Vicia faba collected at seed maturation stage have no economic utility and are, therefore, discarded. However, these leaves and stems contain a considerable amount of flavonol glycosides. Two extraction procedures have been assayed: one using methanol-water as extraction solvent and another using alkaline water. The extraction yield (about 1 g of flavonoid/kg fresh plant material) was slightly higher when extracting with alkaline water, but this extraction hydrolyzes the acetyl derivatives, leaving almost exclusively the deacetylated compounds.
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