Document Detail

Antioxidant and antibacterial activities of Rumex japonicus HOUTT. Aerial parts.
MedLine Citation:
PMID:  16327154     Owner:  NLM     Status:  MEDLINE    
We evaluated total phenolic content, antioxidant activity, reducing power and antibacterial activity of ethanol, hexane, chloroform, ethyl acetate and aqueous extracts of aerial parts of Rumex japonicus HOUTT. The ethyl acetate extract had the highest amount of phenolic compounds. It also exhibited the highest reducing power and antioxidant activity when assayed by the 1,1-diphenyl-2-picrylhydrazyl (DPPH), beta-carotene bleaching and superoxide radical methods. The ethyl acetate extract possessed the strongest antibacterial activity against Bacillus subtilis, B. cereus and E. coli. GC-MS analysis indicated that ethyl acetate extract contained a variety of phenolic compounds. HPLC analysis showed that pyrogallol was the predominant phenolic compound in this extract. Thus, our study verified that the ethyl acetate extract has strong antioxidant and antibacterial activities which are correlated with its high level of phenolic compounds, particularly pyrogallol and pyrocatechin. This extract of R. japonicus aerial parts can be utilized as an effective and safe source of antioxidants.
Abdelnaser Abdelghany Elzaawely; Tran Dang Xuan; Shinkichi Tawata
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Biological & pharmaceutical bulletin     Volume:  28     ISSN:  0918-6158     ISO Abbreviation:  Biol. Pharm. Bull.     Publication Date:  2005 Dec 
Date Detail:
Created Date:  2005-12-05     Completed Date:  2006-03-09     Revised Date:  2009-11-19    
Medline Journal Info:
Nlm Unique ID:  9311984     Medline TA:  Biol Pharm Bull     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  2225-30     Citation Subset:  IM    
Department of Bioscience and Biotechnology, Faculty of Agriculture, University of the Ryukyus, Okinawa, Japan.
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MeSH Terms
Acetates / chemistry,  pharmacology
Anti-Bacterial Agents / chemistry,  isolation & purification,  pharmacology*
Antioxidants / chemistry,  isolation & purification,  pharmacology*
Bacillus cereus / drug effects
Bacillus subtilis / drug effects
Biphenyl Compounds / pharmacology
Butylated Hydroxytoluene / pharmacology
Chromatography, High Pressure Liquid
Gas Chromatography-Mass Spectrometry / methods
Hydrazines / pharmacology
Oxidation-Reduction / drug effects
Phenols / chemistry,  isolation & purification,  pharmacology
Plant Components, Aerial / chemistry*
Plant Extracts / chemistry,  isolation & purification,  pharmacology
Superoxides / antagonists & inhibitors,  metabolism
alpha-Tocopherol / pharmacology
beta Carotene / antagonists & inhibitors,  diagnostic use,  metabolism
Reg. No./Substance:
0/Acetates; 0/Anti-Bacterial Agents; 0/Antioxidants; 0/Biphenyl Compounds; 0/Hydrazines; 0/Phenols; 0/Picrates; 0/Plant Extracts; 11062-77-4/Superoxides; 128-37-0/Butylated Hydroxytoluene; 141-78-6/ethyl acetate; 1898-66-4/2,2-diphenyl-1-picrylhydrazyl; 59-02-9/alpha-Tocopherol; 7235-40-7/beta Carotene

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