Antioxidant and anti-inflammatory activities of selected medicinal plants and fungi containing phenolic and flavonoid compounds

被引：124

作者：

Diaz, Patricia ^{[1
]}

Jeong, Sang Chul ^{[2
]}

Lee, Samiuela ^{[1
]}

Khoo, Cheang ^{[1
]}

Koyyalamudi, Sundar Rao ^{[1
,2
]}

机构：

[1] Univ Western Sydney, Ctr Complementary Med Res, Penrith, NSW 1797, Australia

[2] Univ Western Sydney, Sch Sci & Hlth, Penrith, NSW 1797, Australia

来源：

CHINESE MEDICINE | 2012年 / 7卷

关键词：

NITRIC-OXIDE; MECHANISM; EXTRACTS; ROOTS;

D O I：

10.1186/1749-8546-7-26

中图分类号：

R [医药、卫生];

学科分类号：

10 ;

摘要：

Background: This study aims to determine the relationship between the antioxidant and anti-inflammatory activities of the thirteen herbs and two fungi extracts, and their total phenolic and flavonoid contents. Methods: Antioxidant activities were evaluated by four assays: an antioxidant activity assay using Saccharomyces cerevisiae, a DPPH ((2, 2-diphenyl-1-picrylhydrazyl) assay to assess free radical scavenging, an assay assessing ferrous ions or iron (II) chelating ability, and a ferric reducing antioxidant power (FRAP) assay. Total phenolic and flavonoid contents were determined using the Folin-Ciocalteu and aluminium chloride methods, respectively. Anti-inflammatory activities were determined by measuring the inhibition of nitric oxide and TNF-alpha production in lipopolysaccharide-and interferon-gamma-activated J774A.1 macrophages. Their cytotoxicities against macrophages were determined by MTT assay. Results: A positive linear correlation between antioxidant activities and the total phenolic and flavonoid content of the plant extracts was found. The plant extracts with high phenolic and flavonoid content also exhibited significant anti-inflammatory activity with good cell viability. Conclusion: The selected herbs could be a rich source of antioxidants and free radical scavenging compounds. The levels of phenolic and flavonoid compounds were correlated with the antioxidant and anti-inflammatory activities of the extracts from the herbs.

引用

页数：9

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