Free radical-scavenging activity of Taiwanese native plants

被引：129

作者：

Hou, WC

Lin, RD

Cheng, KT

Hung, YT

Cho, CH

Chen, CH

Hwang, SY

Lee, MH ^{[1
]}

机构：

[1] Taipei Med Univ, Grad Inst Pharmacognosy Sci, Taipei 110, Taiwan

[2] Taipei Municipal Ho Ping Hosp, Dept Internal Med, Taipei, Taiwan

[3] Taipei Med Univ, Dept Biochem, Taipei, Taiwan

[4] Taiwan Endem Species Res Inst, Chi Chi, Nantou, Taiwan

来源：

PHYTOMEDICINE | 2003年 / 10卷 / 2-3期

关键词：

Taiwanese native plants; 1; 1-diphenyl-2-picrylhydrazyl; (DPPH); hydroxyl radical (*OH); reducing power;

D O I：

10.1078/094471103321659898

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

The 70% aqueous acetone extracts of ten Taiwanese native plants were evaluated by various antioxidant assays, including 1, 1-diphenyl-2-picrylhydrazyl (DPPH), hydroxyl ((OH)-O-.) radicals, and reducing power assay. In the present study, extracts of Acer buerferianum var. formosanum, Cleyera japonica var. morii, Cyclobalanopsis stenophylla var. stenophylloides, and Machilus zuihoensis exhibited stronger activity against DPPH radicals, and their IC50 values ranged from 5.4 to 8.3 mug/ml. The ten selected extracts effectively inhibited the formation of (OH)-O-. generated in the Fenton reaction system. Among the extracts whose reducing power activities were determined, A. buerferianum var. formosanum, C. japonica var. morii, C. stenophylla var. stenophylloides, Eriobotrya deflex, and M. zuihoensis showed high activity. The results indicate the 70% aqueous acetone extracts of A. buerferianum var. formosanum, C. japonica var. morii, C. stenophylla var. stenophylloides, and M. zuihoensis with great potency in these assay systems and may be candidates for the development of natural antioxidants.

引用

页码：170 / 175

页数：6

共 27 条

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