Antioxidative activity of water extracts from leaf, male flower, raw cortex and fruit of Eucommia ulmoides Oliv.

作者:Zhang Qiang*; Su Yin Quan; Yang Fang Xia; Peng Jin Nian; Li Xiu Hong; Sun Run Cang
来源:Forest Products Journal, 2007, 57(12): 74-78.

摘要

The antioxidative activity of water extracts from leaf, male flower, raw cortex and fruit of Eucommia ulmoides Oliv. was characterized by free-radical scavenging, reducing power, Fe2+ chelating ability, and antioxidant activity in linoleic acid emulsion assays. The water extract of leaves showed a marked antioxidant activity. The free-radical scavenging, reducing power, antioxidant activity in linoleic acid emulsion of the extract from the male flower were found to be less than leaf extract but stronger than that of raw cortex and fruit. The results showed that extract from the male flower and the leaf of Eucommia ulmoides Oliv. could possibly be promoted as a natural antioxidant.