Document Detail


ANTIOXIDANT PROPERTIES OF GREEN TEA EXTRACT PROTECT REDUCED FAT SOFT CHEESE AGAINST OXIDATION INDUCED BY LIGHT EXPOSURE.
MedLine Citation:
PMID:  21721579     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The effect of two different antioxidants, EDTA and green tea extract (GTE), used individually or in combination, on the light-induced oxidation of reduced fat soft cheeses (0.2 and 6% fat) was investigated. In samples with 0.2% fat, lipid hydroperoxides as primary lipid oxidation products were not detected but their interference was suggested from the formation of secondary lipid oxidation products such as hexanal and heptanal. The occurrence of these oxidation markers was inhibited by spiking with 50 ppm EDTA or 750 ppm GTE, or a combination of the two prior to irradiation. In contrast, addition of 50 ppm EDTA to samples with 6% fat was ineffective, but 750 ppm GTE (alone or in combination with EDTA) strongly reduced levels of hexanal and heptanal. Accumulation of primary lipid hydroperoxides was not affected by GTE, hence antioxidative activity was ascribed to scavenging of hexanal and heptanal precursors. These radical intermediates result from hydroperoxide disintegration and subsequent scavenging by GTE, which acts as radical sink, corroborates the intense signal observed by electron paramagnetic resonance (EPR) spectroscopy.
Authors:
Kevin Huvaere; Jacob H Nielsen; Mette Bakman; Marianne Hammershøj; Leif H Skibsted; John Sorensen; Lene Vognsen; Trine Kastrup Dalsgaard
Related Documents :
22431269 - Salt-effect-based synthesis and anomalous magnetic properties of rare-earth oxide nanos...
21927749 - Anthracene-resorcin[4]arene-based capsules: synthesis and photoswitchable features.
24742159 - Aminative umpolung synthesis of aryl vicinal diamines from aromatic aldehydes.
23934669 - Elimination reactions of esters in the biosynthesis of polyketides and ribosomal peptides.
25198829 - Highly regioselective 1,3-dipolar cycloaddition of diphenylnitrilimine to sc3n@ih-c80 a...
25089019 - Oxidative cyclization reaction of 2-aryl-substituted cinnamates to form phenanthrene ca...
23744829 - A single plp-dependent enzyme pctv catalyzes the transformation of 3-dehydroshikimate i...
22001089 - Synthesis and biological activity of acetyl-protected hydroxybenzyl diethyl phosphates ...
10703989 - Applications of modulated differential scanning calorimetry in preformulation studies.
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-7-2
Journal Detail:
Title:  Journal of agricultural and food chemistry     Volume:  -     ISSN:  1520-5118     ISO Abbreviation:  -     Publication Date:  2011 Jul 
Date Detail:
Created Date:  2011-7-4     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0374755     Medline TA:  J Agric Food Chem     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Adsorption of PEO-PPO-PEO Triblock Copolymers with End-Capped Cationic Chains of Poly(2-dimethylamin...
Next Document:  Controlling adhesion force by means of nanoscale surface roughness.