The studies were undertaken on examining the influence of different linoleic/linolenic acid ratios in the diet of pregnant cows on some parameters which are involved in metabolism of prostaglandins in their placentas. Phospholipase A2 (PLA2) which provides arachidonic acid (AA), superoxide dismutase (SOD), glutathione peroxidase (GSH-Px) the two being involved in neutralization of reactive oxyg...

A simple and sensitive method is presented for the simultaneous quantification (spectrophotometric and spectrofluorimetric) of the main lipid and protein peroxidation products after their initial fractionation: free malondialdehyde (FrMDA), protein-bound malondialdehyde (PrMDA), total hydroperoxides (LOOH), and protein hydroperoxides (PrOOH). FrMDA and PrMDA (released from proteins by alkaline ...

The present work was carried out to study the effect of vacuum packaging and pomegranate peel extract (PE) treatments on the quality of pacific white shrimp (Peneous vannamei) during refrigerated storage. Changes in pH, thiobarbituric acid (TBA), total volatile base nitrogen (TVB-N), trimethylamine (TMA), aerobic plate counts, psychrophilic, lactic acid bacteria and enterobacteriaceae counts, m...

Meat products, especially fish meat, are very susceptible to lipid oxidation and microbial spoilage. In this study, first, gas chromatography mass spectrometry (GC-MS) analysis of Zataria multiflora essential oil (ZEO) components was done and then two concentrations of ZEO, (1% and 2%) and two concentrations of grape seed extract (GSE), (0.5% and 1%) were used in carboxymethyl cellulose coating...

This study aimed to investigate the oxidation profile of wheat germ oil extracted from raw during stabilization with microwave (MW) treatment, and kinetics parameters (free fatty acids (FFA), peroxide value (PV), thiobarbituric acid (TBA), α-tocopherol, lipase (LA) lipoxygenase (LOX) enzymes activities) under different storage conditions. For stabilizing germ, MW was treated at 700 W for three ...

The effects of aging and food restriction on the activities and mRNA levels of antioxidant enzymes in rat livers were examined. Rats were fed ad libitum every day (AL) or ad libitum on every other weekday (FR). At 30 months of age, the catalase and glutathione peroxidase activities were lower, whereas the thiobarbituric acid (TBA) value, an index of lipid peroxidation of the AL rats, was higher...

Objective: The purpose of this study was to evaluated the quality parameters and analyzed antioxidant activity seroja leaves Nelumbo nucifera Gaertn.
 Methods: quantification chemical compound determined by its total phenol flavonoid levels. evaluate comparability four common radical scavenging assays using 2,2′-azino-bis-3-ethylbenzthiazoline-6-sulphonic acid (ABTS); 1, 1-diphenyl-2-picry...

Effects of 1% or 0.5% chitosan (CHI), 10% or 5% aqueous extract of ginger, onion and garlic (GOG) and their composite solutions (1% CHI+10% GOG, 0.5% CHI+5% GOG) on quality and shelf life of stewed-pork were evaluated. Microbiological (total bacterial count), chemical (pH, total volatile basic nitrogen (TVB-N), peroxide value (POV), 2-thiobarbituric acid (TBA)) and sensory characteristics were ...

We studied the effects of mexidol (3-oxy-6-methyl-2-ethylpiridine succinate) on antioxidant glutathione system in rat brain mitochondria experimental Parkinson’s disease induced by rotenone administration. Wistar rats were divided into following groups 6 each: I - intact (control); II (3 mg/kg per day) was injected subcutaneously for 2 weeks; III after intoxication, (50 intraperitoneally weeks....