科研之友
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摘要
Polyphenols are a widespread group of secondary metabolites found in woody species, including softwood. Higher amounts of these bioactive compounds occurring in bark, heartwood, roots, branch bases and wound tissues and have a number of important roles to play in viticulture and ecology, including UV protection, disease resistance, pollination, color, and defense against predation in plants, plant growth regulation and bioremediation. The use of synthetic chelates has been strongly criticized because of excessive amount of metals solubilized, associated with risk of groundwater contamination through metal leaching. This study evaluate the possibility of using natural bioactive compounds, characteristic to grape seeds extracts, in phytoextraction as an alternative to synthetic chelators. The results obtained shown an improving trend in the bioaccumulation process of heavy metals into the rape plant. It may be properly mentioned that grape seeds natural polyphenolic extract present an important role in phytoextraction process.
- 出版日期2012-2
