Document Detail


DPPH free-radical scavenging ability, total phenolic content, and chemical composition analysis of forty-five kinds of essential oils.
MedLine Citation:
PMID:  19156333     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Forty-five kinds of commonly used essential oils were employed to investigate the DPPH (1,1-diphenyl-2-picrylhydrazyl) radical scavenging ability and total phenolic content of major chemical compositions. The free-radical scavenging ability and total phenolic content of cinnamon leaf and clove bud essential oils are the best among these essential oils. One-half milliliter of cinnamon leaf and clove bud essential oils (10 mg/ml EtOH) are shown to be 96.74% and 96.12% of the DPPH (2.5 ml, 1.52x10(-4) M) free-radical scavenging ability, respectively. Their EC50 (effective concentrations) are 53 and 36 (microg/ml). One milligram per milliliter of cinnamon leaf, clove bud, and thyme red essential oils were shown to be 420, 480, and 270 (mg/g of GAE) of total phenolic content, respectively. Eugenol in cinnamon leaf and clove bud essential oils (82.87% and 82.32%, respectively) were analyzed by GC-MS. It is clear that the amounts of the phenol compounds in essential oils and the DPPH free-radical scavenging ability are in direct proportion.
Authors:
Hsiao-Fen Wang; Yu-Kang Wang; Kuang-Hway Yih
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of cosmetic science     Volume:  59     ISSN:  1525-7886     ISO Abbreviation:  J Cosmet Sci     Publication Date:    2008 Nov-Dec
Date Detail:
Created Date:  2009-01-21     Completed Date:  2009-03-27     Revised Date:  2009-11-19    
Medline Journal Info:
Nlm Unique ID:  9814276     Medline TA:  J Cosmet Sci     Country:  United States    
Other Details:
Languages:  eng     Pagination:  509-22     Citation Subset:  IM    
Affiliation:
Department of Science and Technology for Bioindustry, Hungkuang University, Shalu, No. 34, Chung-Chie Road, Taichung, Taiwan 433, ROC.
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MeSH Terms
Descriptor/Qualifier:
Biphenyl Compounds
Cinnamomum zeylanicum / chemistry
Eugenol / analysis,  chemistry
Free Radical Scavengers / analysis,  chemistry*,  pharmacology
Gas Chromatography-Mass Spectrometry
Oils, Volatile / analysis,  chemistry*,  pharmacology
Phenols / analysis
Picrates / chemistry*
Plant Leaves / chemistry
Chemical
Reg. No./Substance:
0/Biphenyl Compounds; 0/Free Radical Scavengers; 0/Oils, Volatile; 0/Phenols; 0/Picrates; 1898-66-4/2,2-diphenyl-1-picrylhydrazyl; 97-53-0/Eugenol

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