the present study evaluated the effect of packaging (air, vacuum) with or without addition of sodium acetate (2% w/v) on shelf-life extension of rainbow trout (oncorhynchus mykiss) under refrigeration, for a period of 18 days. four different treatments were tested: cap: control air pack; saap: sodium acetate treated aerobic packaging; vp: vacuum packaging in the absence of sodium acetate; and s...

The quality and nutritional value for both fish protein concentrate (FPC) made from tilapia by-products as well as salt-biscuits supplemented with 5% FPC were evaluated. The resultant product (FPC) was composed (on wet weight) of 4.18% moisture, 68.83% protein content, 0.75% lipid and 25.39% ash and it was more uniform in color and texture. In addition, the pH value was 6.67 and total volatile ...

Oxidative damage and antioxidant properties were studied in Mugil cephalus exposed to cadmium, copper, lead and zinc in chronic toxicity test as pollution biomarkers. The elevated thiobarbituric acid reactive substances (TBA-RS) levels observed under exposure to heavy metals, leading to the oxidative damage resulting in lipid peroxidation (LPX). Increased activities of antioxidants, catalase (C...

fish finger is a semi-prepared product of fish that many studies have been done to improve its texture, taste, flavor and color. the present study aims at investigating the quality and sensory characteristics of fish fingers produced from fillet and surimi of common carp during storage in refrigerator. fish fingers were packed and then stored in refrigerator (4 °c). chemical parameters (fat con...

Urinary lipoperoxides, measured as the malondialdehyde-thiobarbituric acid adduct, were quantified by adapting to urine the liquid-chromatographic method of Wong et al. (Clin Chem 1987;33:214-20) to plasma. Reference intervals for untimed urine specimens from 121 men, ages 16 to 67 years, and 107 women, ages 15 to 55, were determined. Their concentrations differed significantly (P = 0.015), mal...

The stabilities and antioxidant action of two selected flavonoids, quercetin and rutin, dissolved in methanol and water, toward continuous UV-irradiation from three different sub-ranges (UV-A, UV-B and UV-C) were studied. The flavonoids underwent degradation (bleaching) following first-order kinetics. The bleaching rates were highly dependent on the energy input of the involved UV-photons. The ...

A reliable method for spectrophotometric determination of urinary malondialdehyde (MDA), according to the thiobarbituric acid (TBA) assay, is described. To account for matrix interference and differences in individual urine composition, standard addition procedure was applied. The method is adequately selective (LoQ = 0.09 μM in the presence of 0.1 M creatinine and 0.5 M urea) and reliable (wit...

Three different levels (1%, 3% and 5%) of plum puree were attempted in the formulation of low sodium reduced fat meat emulsion to evaluate the possibility of its utilization as antioxidants in chevon patties. The product was evaluated for various quality characteristics and sensory attributes. The pH, and thiobarbituric acid (TBA) values were significantly (P<0.05) higher in control as compared...

Background: Due to high content of unsaturated fatty acids, trout is susceptible to oxidative spoilage. In this study, the effects of Thymus vulgaris Essential Oil (EO) and extract on oxidative stability of cooked rainbow trout fillet during four months frozen storage period were investigated. Methods: Three groups of fish fillets were treated with thyme EO and three other groups were treate...

A thrombin binding aptamer (TBA) is a synthetic 15-nt DNA oligomer that binds human alpha thrombin with high specificity and reversibly suspends the coagulation cascade and platelet formation. It has been established that TBA folds intramolecularly into a G-quadruplex (GQ) structure in solution, forming two G tetrads and three loops1. Two TT loops play a critical role in recognizing the target ...