Bioactivities of bulk fish protein hydrolysates (FPH) from defatted salmon backbones obtained with eight different commercial enzymes and their combinations were tested. All FPH showed antioxidative activity in vitro. DPPH scavenging activity increased, while iron chelating ability decreased with increasing time of hydrolysis. All FPH showed ACE inhibiting effect which depended on type of enzym...

Background: Our purpose was to investigate propolis and its component caffeic acid phenethyl ester (CAPE) for their antioxidant effects on the brain tissue of rats exposed to ionizing radiation (IR). Materials and Methods: Fifty-four male albino Sprague-Dawley rats, divided into six groups, were designed as normal control group, cranial irradiation of 5 Gray alone, irradiation plus CAPE, irradi...

The combination of microwave irradiation, ultrasonication treatment, and enzyme-assisted extraction approach was applied to study the efficiency antioxidative activity curcumin from turmeric (Curcuma longa L.) using Response Surface Optimization (RSM). effects power treatment time irradiation types enzymes, amounts, interaction pectinase on were studied. RSM used select optimum conditions by im...

Sunflower is an economically important oilseed crop worldwide and weeds have a negative effect on its yields. The herbicide imazamox, combined with imazamox-resistant (IMI-R) sunflower hybrids, technology known as the Clearfield production system successfully controls weeds. mechanism of action imazamox related to blocking AHAS enzyme, which catalyzes first step in biosynthetic pathway branched...

The use of soil additives such as selenium can positively influence the antioxidative system plants, making them more tolerant to abiotic stresses. aim this work was evaluate concentration sodium selenite or selenate applied substrate that causes improve in plant growth and enzyme activities sunflower plants. treatments were divided in: control (absence selenium); 0.2 mg L-1 selenate; 0.4 0.8 s...

In this study, we measured free radicals and thiobarbituric acid-reactive substances (TBARS) in hepatocellular carcinoma and in non-cancerous liver parenchyma. There was a higher concentration of free radicals in malignant tissue than in non-cancerous tissue. In contrast, the level of TBARS was significantly (P < 0.01) lower than non-cancerous liver parenchyma. These paradoxical results suggest...

1-Cysteine Peroxiredoxin (1Cys Prx) is a thiol dependent antioxidative enzyme of molecular weight 20-30 kDa. It contains one catalytic cysteine residue and is found in cytosol. Prx plays an important role in growth, development and dessication tolerance in dormant seeds. It detoxifies H2O2 and various other organic peroxides. It protects lipids, enzymes and DNA against reactive oxygen species. ...

The antioxidative proteolytic fraction, MA-1, was partially purified from Mycoleptodonoides aitchisonii. MA-1 to homogeneity using a two-step procedure, which resulted in an 89-fold increase specific activity and 42.5% recovery. SDS-PAGE revealed two proteins with molecular weight of 48 kDa. zymography results based on the band. found be stable presence Na+, Ca2+, Fe3+, K+, Mg2+. also methanol,...