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  1. Journal of the American Oil Chemists' Society
  2. Journal of the American Oil Chemists' Society : Volume 82
  3. Journal of the American Oil Chemists' Society : Volume 82, Issue 4, April 2005
  4. Radical scavenging activity of canola hull phenolics
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Journal of the American Oil Chemists' Society : Volume 94
Journal of the American Oil Chemists' Society : Volume 93
Journal of the American Oil Chemists' Society : Volume 92
Journal of the American Oil Chemists' Society : Volume 91
Journal of the American Oil Chemists' Society : Volume 90
Journal of the American Oil Chemists' Society : Volume 89
Journal of the American Oil Chemists' Society : Volume 88
Journal of the American Oil Chemists' Society : Volume 87
Journal of the American Oil Chemists' Society : Volume 86
Journal of the American Oil Chemists' Society : Volume 85
Journal of the American Oil Chemists' Society : Volume 84
Journal of the American Oil Chemists' Society : Volume 83
Journal of the American Oil Chemists' Society : Volume 82
Journal of the American Oil Chemists' Society : Volume 82, Issue 12, December 2005
Journal of the American Oil Chemists' Society : Volume 82, Issue 11, November 2005
Journal of the American Oil Chemists' Society : Volume 82, Issue 10, October 2005
Journal of the American Oil Chemists' Society : Volume 82, Issue 9, September 2005
Journal of the American Oil Chemists' Society : Volume 82, Issue 8, August 2005
Journal of the American Oil Chemists' Society : Volume 82, Issue 7, July 2005
Journal of the American Oil Chemists' Society : Volume 82, Issue 6, June 2005
Journal of the American Oil Chemists' Society : Volume 82, Issue 5, May 2005
Journal of the American Oil Chemists' Society : Volume 82, Issue 4, April 2005
Studies on the crystal growth of rice bran wax in a hexane medium
HPLC method for the determination of synthetic thermal heating fluid (therminol 55$^{TM}$) in basic oleochemicals
Continuous production of structured phospholipids in a packed bed reactor with lipase from Thermomyces lanuginosa
Capabilities of different cooking oils in prevention of cholesterol oxidation during heating
Iron accumulation in oil during the deep-fat frying of meat
Radical scavenging activity of canola hull phenolics
Production of conjugated linoleic acid isomers by dehydration and isomerization of castor bean oil
Synthesis and characterization of oleic succinic anhydrides: Structure-property relations
Castor oil hydrogenation by a catalytic hydrogen transfer system using limonene as hydrogen donor
Adsorption of amphiphiles at an oil-water vs. an oil-metal interface
Cooperative adsorption behavior of fatty acid methyl esters from hexadecane via coefficient of friction measurements
Prediction of the chemical equilibrium constant for peracetic acid formation by hydrogen peroxide
Journal of the American Oil Chemists' Society : Volume 82, Issue 3, March 2005
Journal of the American Oil Chemists' Society : Volume 82, Issue 2, February 2005
Journal of the American Oil Chemists' Society : Volume 82, Issue 1, January 2005
Journal of the American Oil Chemists' Society : Volume 81
Journal of the American Oil Chemists' Society : Volume 80
Journal of the American Oil Chemists' Society : Volume 79
Journal of the American Oil Chemists' Society : Volume 78
Journal of the American Oil Chemists' Society : Volume 77
Journal of the American Oil Chemists' Society : Volume 76
Journal of the American Oil Chemists' Society : Volume 75
Journal of the American Oil Chemists' Society : Volume 74

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Radical scavenging activity of canola hull phenolics

Content Provider SpringerLink
Author Naczk, M. Pegg, R. B. Zaderwski, R. Shahidi, F.
Copyright Year 2005
Abstract Possible use of canola hulls as a source of natural anti-oxidants was explored. Cyclone canola hulls were extracted with methanol (30 to 80%, vol/vol) and acetone (30 to 80%, vol/vol). The free radical-scavenging activity of phenolic extracts so prepared was evaluated using the 2,2′-azinobis-(3-ethylbenzothiazoline-6-sulfonate) (ABTS) radical ion (ABTS$^{o−}$), 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical, and chemiluminescence assays. The total content of phenolics in prepared extracts from canola hulls ranged from 15 to 136 mg sinapic acid equivalents per gram of extract. Higher levels of condensed tannins were detected in the acetone extracts than in the corresponding methanolic counterparts. Seventy and 80% (vol/vol) acetone extracts displayed markedly stronger antioxidant activity than any of the other extracts investigated. Statistically significant linear correlations were found between TEAC (Trolox equivalent antioxidant capacity) values (expressed in mM of Trolox equivalents per gram of extract) and total pehnolics, TEAC and total condensed tannins (i.e., determined using the modified vanillin and pronthocyanidin assays), as well as TEAC and protein precipitation activity of phenolic extracts (i.e., measured using the dye-labeled assay). The antioxidant activities of extracts as determined by the ABTS$^{o−}$ radical ion assay correlated highly with those of the chemiluminescence and DPPH radical assays.
Starting Page 255
Ending Page 260
Page Count 6
File Format PDF
ISSN 0003021X
Journal Journal of the American Oil Chemists' Society
Volume Number 82
Issue Number 4
e-ISSN 15589331
Language English
Publisher Springer-Verlag
Publisher Date 2005-01-01
Publisher Place Berlin, Heidelberg
Access Restriction One Nation One Subscription (ONOS)
Subject Keyword ABTS antioxidant canola hulls chemiluminescence DPPH phenolics radical scavenging activity solvent systems Chemistry/Food Science Analytical Chemistry Biotechnology Industrial Chemistry/Chemical Engineering Biomaterials Agriculture
Content Type Text
Resource Type Article
Subject Organic Chemistry Chemical Engineering
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