The total antioxidant capacities (TAC) of feces of mammalian herbivores and carnivores were compared. TAC were estimated using three different methods: 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) radical (ABTS*) reduction, 1,1-diphenyl-2-picrylhydrazyl radical (DPPH*) reduction, and ferric reducing antioxidant power (FRAP). TAC of 18 herbivorous species were generally higher with res...

INTRODUCTION Phenols are the most abundant compounds in nature. They are strong antioxidants. Too high level of free radicals leads to cell and tissue damage, which may cause asthma, Alzheimer disease, cancers, etc. Taking phenolics with the diet as supplements or natural medicines is important for homeostasis of the organism. MATERIALS AND METHODS The ten most popular water soluble phenols w...

This study was undertaken to evaluate the antioxidative and lipid accumulation inhibitory effects in HepG2 cell of 11 Tunisian plants extracts. Total phenolics contents (TPC), total flavonoid (TFC) extracts were measured, activities analyzed using DPPH, ABTS, FRAP, ORAC TBA assay. Inhibitory effect oxidative stress evaluated by viability peroxidation level H2O2-treated cells. Lipid determined O...

Oxidant/antioxidant imbalance has been reported in some infectious diseases, including community-acquired pneumonia (CAP). The aim was to assess the antioxidant status in adults with CAP and its relationship with clinical severity at admission. Fifty-nine patients with CAP were enrolled and categorized at admission by the FINE score, from July 2010 to October 2012. In the same period 61 control...

New sulfonamide and amide derivatives containing coumarin moieties; oxo-2H-chromen-sulfamoylphenylacetamides and oxo-2H-chromen-arylacetamides were synthesized starting from diverse 2-chloroacetamide derivatives and a wide range of coumarins. The structures of compounds were elucidated by IR and NMR spectra and also analytical elemental analysis. In the next step, the above mentioned compounds ...

This paper reports the protective effect of the phenolic fraction extracted from extra virgin olive oils (OOPEs) against the cytotoxic effects of reactive oxygen species in human erythrocytes and Caco-2 cells, employed as model systems. Pretreatment of cells with various OOPEs, indeed, provides a remarkable protection against oxidative damages: this effect was strictly dependent on the o-diphen...

Nowadays the researches have indicated the fact that using synthetic antioxidants as food additives in edible oils can have adverse effects on human health. So preparing antioxidation resources for reduction of oxidation stress effects is important. The aim of this project was, representing a natural antioxidant source with frap test. The present study optimized the ultrasound assisted extracti...

This study presents data on the antioxidant and antibacterial activities of honey-based topical formulations incorporating four Western Australian (WA) honeys along with New Zealand Manuka honey as a comparator honey. The activity pure various honey-loaded were assessed by ferric reducing power (FRAP) assay high-performance thin-layer chromatography (HPTLC) coupled 2,2-diphenyl-1-picrylhydrazyl...

Purpose: Different maturity stages and extraction methods of soursop fruit could affect the antioxidant activity fruit. The aim present study was to evaluate phenolic content at four different namely, Immature Stage (IM), Partially Mature (PM), Fully (FM), Well Ripened (WR) using methods.Research Method: Sonication maceration a stir plate were used as techniques, while absolute ethanol 70% v/v ...

new sulfonamide and amide derivatives containing coumarin moieties; oxo-2h-chromen-sulfamoylphenylacetamides and oxo-2h-chromen-arylacetamides were synthesized starting from diverse 2-chloroacetamide derivatives and a wide range of coumarins. the structures of the obtained compounds were elucidated by ir and nmr spectra and also analytical elemental analysis. in the next step, the above mention...