Comparative Study the Scavenging Hydroxyl Free Radical and Anti-Lipidperoxidation Activity of Water Extract between Lycium ruthenicum and Lycium barbarum Fruits

The polysaccharide complex (PSCs) of the Lycium barbarum fruits (commercially available and introduced in the research Institute of Biotechnology of Gorsky GAU, RSO-Alania) and wild Lycium ruthenicum (Absheron District, Tugchay River valley) was studied for the first time. The PSC yield from Lycium barbarum L. fruits was 1. and 1.7 % versus 3.1% from Lycium ruthenicum . In the majority of cases, uronic acids are present in the fraction of water-soluble polysaccharides (WSPS-2) and pectin substances (PS) of Lycium ruthenicum in the amount of 60.0% and 58.0%, respectively. Arabinose is present in the largest amount in all PSK (more than 43%). The second largest monomer is galactose, which is also identified in all polysaccharides. The molecular weight of the 'acidic' and 'neutral' polysaccharides (WSPS-1 and WSPS-2) of the Lycium fruits under consideration differs to a significant extent.

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Study of the mechanisms of hydrogen peroxide and hydroxyl free radical-induced cellular injury and calcium overload in cardiac myocytes

Journal of Biological Chemistry ◽

10.1016/s0021-9258(18)52251-1 ◽

1991 ◽

Vol 266 (4) ◽

pp. 2354-2361

Author(s):

R A Josephson ◽

H S Silverman ◽

E G Lakatta ◽

M D Stern ◽

J L Zweier

Keyword(s):

Hydrogen Peroxide ◽

Free Radical ◽

Cardiac Myocytes ◽

Calcium Overload ◽

Cellular Injury ◽

Hydroxyl Free Radical

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Note: A Comparative Study on the in Vitro Antiradical Activity and Hydroxyl Free Radical Scavenging Activity in Aged Red Wines

Food Science and Technology International ◽

10.1177/1082013203040080 ◽

2003 ◽

Vol 9 (6) ◽

pp. 383-387 ◽

Cited By ~ 19

Author(s):

P. Kefalas ◽

S. Kallithraka ◽

I. Parejo ◽

D. P. Makris

Keyword(s):

Free Radical ◽

Antiradical Activity ◽

Radical Scavenging Activity ◽

Radical Scavenging ◽

Free Radical Scavenging ◽

Free Radical Scavenging Activity ◽

Scavenging Activity ◽

Red Wines ◽

Hydroxyl Free Radical ◽

Important Relationship

The antiradical and hydroxyl free radical scavenging activities were estimated in twenty-five, aged red wines from different areas in Greece. The antiradical activity (AAR) was determined by means of the wellknown DPPH• method, and its values ranged from 24.7 to 125.1. A novel, chemiluminescence-based, highly sensitive assay was applied for determination of the hydroxyl free radical scavenging activity (SAHFR), which varied from 1.62 to 12.22 mM quercetin equivalents. The values from the two assays correlated very well (r2 =0.8542, P<0.001), which confirmed an important relationship between SAHFR and AAR. This tendency in aged red wines, which may be significant in evaluating the antioxidant behaviour of red wine polyphenols, is discussed on the basis of previous research and relevant data.

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Hydroxyl free radical reactivity toward aqueous chlorinated phenols

Water Research ◽

10.1016/j.watres.2004.11.026 ◽

2005 ◽

Vol 39 (5) ◽

pp. 865-869 ◽

Cited By ~ 39

Author(s):

Julio A. Zimbron ◽

Kenneth F. Reardon

Keyword(s):

Free Radical ◽

Chlorinated Phenols ◽

Radical Reactivity ◽

Hydroxyl Free Radical

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Antioxidant Capacities of Water-Soluble Substances Extracted from JinHua Ham

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.675-677.1654 ◽

2014 ◽

Vol 675-677 ◽

pp. 1654-1657

Author(s):

Xiao Li Zhou ◽

Xu Chen ◽

Ting Feng Hao ◽

Yi Ming Zhou ◽

Ying Xiao

Keyword(s):

Antioxidant Activity ◽

Free Radical ◽

Antioxidant Capacity ◽

Mass Fraction ◽

Water Soluble ◽

Oxidation Capacity ◽

Hydroxyl Free Radical ◽

Antioxidant Capacities ◽

Dpph Scavenging ◽

Jinhua Ham

This study was designed to evaluate the antioxidant activity of samples extracted from Jinhua ham by using such chemical assays as DPPH, scavenging hydroxyl free radical and ABTS. The results demonstrate that antioxidant capacity of the extracted sample is lower than oxidation capacity of Vc. The IC50 spot of samples ranges between 0.6 % and 2.5 % (mass fraction of solute).

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