TITLE

Antioxidant Activity of the Essential Oils and Aqueous Extracts Obtained from Five Chinese Herbal Medicines

AUTHOR(S)
LI Hua-tao; SU Dong-hai; SHANG Tao; PAN Wei-gao; GAO Ping
PUB. DATE
December 2008
SOURCE
Natural Product Research & Development;Dec2008, Vol. 20 Issue 6, p974
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The present work examined the antioxidant activity of Motherwort (Leonurus heterophyllus Sweet), Broomwort (Scoparia dulcis L.), Ginkgo leaf (Ginkgo biloba L.), Angelica (Angelica sinensis Diels), and Milkvetch (Astragalus membranaceu Bunge). Dried herbs samples were submitted to extraction with steam distillation. The antioxidant activities of aqueous extracts and essential oils were assessed by the measurement of activities of HO · scavenging, inhibition of lipid peroxidation. Total phenolic constituents of the aqueous extracts and essential oils of five herbs were determined by the methods involving the Folin-Ciocalteu reagent and gallic acid as standard. The cytotoxicity of the aqueous extracts and essential oils were measured by MTT and LDH cytotoxicity assays. All extracts of five herbal medicines were determined to possess antioxidative activity to some extent. The aqueous extracts of Motherwort, Broomwort and Ginkgo leaf showed high antioxidant activity in the performed tests. The antioxidant activity of essential oils and aqueous extracts obtained from the five herbs displayed a significant relationship with the total phenols in them.
ACCESSION #
36837303

 

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