scholarly journals A FLAVONOL COMPOUND FROM Chingia sakayensis (Zeiller) Holtt AND ITS ACTIVITY AS DPPH FREE RADICAL SCAVENGER

2010 ◽  
Vol 3 (3) ◽  
pp. 145-148
Author(s):  
Suyatno Suyatno ◽  
Rukmaningsih Rukmaningsih ◽  
Noor Cholies Zaini ◽  
Motoo Tori
Keyword(s):  
Molecular Structure ◽  
Free Radical ◽  
13C Nmr ◽  
Methanol Extract ◽  
Free Radical Scavenger ◽  
Radical Scavenger ◽  
Spectroscopic Methods ◽  
Radical Scavenger Activity ◽  
Scavenger Activity

It has been separated a flavonol 3,5,7,4'-tetrahydroxy flavone (kaemferol) from the methanol extract partitioned by ethyl acetate of the leaves of the fern Chingia sakayensis (Zeiller) Holtt. This was obtained as yellow crystals with m.p. 271-273oC. Characterization of its molecular structure was carried out by spectroscopic methods (UV, IR, 1H-NMR, HMQC, HMBC, 13C-NMR and FABMS). Kaemferol indicated the DPPH free radical scavenger activity in TLC autography.   Keywords: Chingia sakayensis (Zeiller) Holtt, flavone, kaemferol, DPPH free radical scavenger activity

scholarly journals DPPH FREE RADICAL SCAVENGER ACTIVITY OF FLAVONOID FROM THE LEAVES OF FERN Chingia sakayensis (Zeiller) Holtt

2010 ◽  
Vol 5 (2) ◽  
pp. 173-176
Author(s):  
Suyatno Suyatno ◽  
Noor Cholies Zaini ◽  
Motoo Tori
Keyword(s):  
Ascorbic Acid ◽  
Free Radical ◽  
Vitamin E ◽  
Methanol Extract ◽  
Ethyl Acetate Fraction ◽  
Free Radical Scavenger ◽  
Flavonoid Compound ◽  
Radical Scavenger ◽  
Radical Scavenger Activity ◽  
Scavenger Activity

A flavonoid compound in flavonol type namely kaemferol was isolated from the ethyl acetate fraction of the methanol extract of the fern Chingia sakayensis (Zeiller) Holtt's leaves. The DPPH free radical scavenger activity of kaemferol was stronger than buthyl hyroxy toluene (BHT) but it was weaker than ascorbic acid (vitamin C) and -tocopherol (vitamin E).   Keywords: Chingia sakayensis, kaemferol, DPPH free radical scavenger activity  

Sesquiterpene lactones fromLychnophora pohlii: neutrophil chemiluminescence inhibition and free radical scavenger activity

2006 ◽  
Vol 58 (6) ◽  
pp. 853-858 ◽  
Author(s):  
Alexandre Kanashiro ◽  
Luciana M. Kabeya ◽  
Cristiane F. F. Grael ◽  
Christiane O. Jordão ◽  
Ana Elisa C.S. Azzolini ◽  
...  
Keyword(s):  
Free Radical ◽  
Sesquiterpene Lactones ◽  
Free Radical Scavenger ◽  
Radical Scavenger ◽  
Radical Scavenger Activity ◽  
Scavenger Activity

Nutritive composition and free radical scavenger activity of honey enriched with of Rosa spp.

LWT ◽  
2014 ◽  
Vol 55 (1) ◽  
pp. 408-413 ◽  
Author(s):  
D. Štajner ◽  
B.M. Popović ◽  
J. Čanadanović-Brunet ◽  
S. Đilas ◽  
G. Ćetković
Keyword(s):  
Free Radical ◽  
Free Radical Scavenger ◽  
Radical Scavenger ◽  
Radical Scavenger Activity ◽  
Scavenger Activity ◽  
Nutritive Composition

Thymus zygis Oil: Its Effects on CCI4-Induced Hepatotoxicity and Free Radical Scavenger Activity

1993 ◽  
Vol 5 (2) ◽  
pp. 153-158 ◽  
Author(s):  
J. Jiménez ◽  
M. C. Navarro ◽  
M. P. Montilla ◽  
A. Martin ◽  
A. Martinez
Keyword(s):  
Free Radical ◽  
Free Radical Scavenger ◽  
Radical Scavenger ◽  
Thymus Zygis ◽  
Radical Scavenger Activity ◽  
Scavenger Activity

Assessment of the anti-inflammatory activity and free radical scavenger activity of tiliroside

2003 ◽  
Vol 461 (1) ◽  
pp. 53-61 ◽  
Author(s):  
Araceli Sala ◽  
M.Carmen Recio ◽  
Guillermo R Schinella ◽  
Salvador Máñez ◽  
Rosa M Giner ◽  
...  
Keyword(s):  
Free Radical ◽  
Free Radical Scavenger ◽  
Inflammatory Activity ◽  
Radical Scavenger ◽  
Radical Scavenger Activity ◽  
Scavenger Activity ◽  
Anti Inflammatory
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