The aim of this study is to investigate the ability oleuropein-rich olive leaf extract (OLE) improve quality and oxidative stability sunflower oil subjected accelerated thermal oxidation. Oleuropein was major phenolic compound determined by HPLC-DAD with a content ranging from 20.81 32.56 mg·g-1 dry (DE). evaluation in vitro antioxidant capacity OLE showed good scavenging 2,2-diphenyl-1-picrylh...

Here, we have studied the impact of nanocrystalline cerium dioxide (NCD) particles on erythrocyte membrane state in a model hypothermic storage blood samples by examining content lipid peroxidation (LPO) primary products and hematological indices (free total hemoglobin, hematocrit hemolysis levels). After within 5 weeks, no significant difference between control experimental groups was revealed...

A total of 63 clinical isolates of Proteus mirabilis collected over a 19-month period were typed by the Dienes test and ribotyping. Ribotyping was performed using the fully automated RiboPrinter Microbial Characterization System (Qualicon, Wilmington, Del.). Isolates that were indistinguishable by the Dienes test and/or ribotyping were characterized further by pulsed-field gel electrophoresis (...

We investigated the influence of dietary flavonoids on alpha-tocopherol status and LDL peroxidation in rats fed diets enriched in either polyunsaturated fatty acids (PUFA) or monounsaturated fatty acids (MUFA). Diets equalized for alpha-tocopherol concentrations were or were not supplemented with 8 g/kg diet of flavonoids (quercetin + catechin, 2:1). After 4 wk of feeding, plasma lipid concentr...

This study shows the possibility of using gallic acid (GA) and/or methyl gallate (MG) accompanied by phosphatidylcholine (PC) instead tert-butylhydoquinone (TBHQ) for frying purposes. The antioxidants and PC were added in concentrations 1.2 mM 500–2000 mg/kg, respectively. Oxidative stability index (OSI) kinetics change conjugated dienes (LCD), carbonyls (LCO), value (AV) used to assess antioxi...

Quercetin is one of the most widely distributed flavonoids present in fruits and vegetables. The present experiments were performed on rats adapted for 3 wk to a semipurified diet supplemented with 0.2% quercetin. The major part of the circulating metabolites of quercetin (91.5%) are glucurono-sulfo conjugates of isorhamnetin (3'-O-methyl quercetin; 89.1 ± 2.1 μM) and of quercetin (14.7 ± 1.7 μ...