γ-Proteobacterium JB, an alkali-tolerant soil isolate, produced laccase (8X10 nkat/L) in M162 medium. The optimization of process conditions (pH, incubation time, agitation, and CuSO4 concentration) for laccase production during submerged fermentation was carried out using response surface methodology (RSM) based on a central composite design (CCD). Maximum laccase production achieved was 7.4 X...

A series of experiments investigated the nature of metallic taste reports and whether they can be attributed to the development of a retronasal smell. Two studies showed that the metallic sensation reports following oral stimulation with solutions of FeSO4 were reduced to baseline when the nose was occluded. No such reduction was seen for CuSO4 or ZnSO4, which were more bitter and astringent, r...

Micro-arc oxidation (MAO) ceramic coatings were prepared on TC4 titanium alloys by adding CuSO4 to a (NaPO3)6 base solution. The microstructures of the MAO characterized scanning electron microscopy (SEM), energy dispersive (EDS), and X-ray photoelectron spectroscopy (XPS). corrosion resistance wear these evaluated via hydrochloric acid immersion weight deficit friction tests. Those results ind...

The goal of this project is to assess the effect natural dye absorption from turmeric powder on cotton fabrics. At commencement, fabrics are mordanted with two different processes, one synthetic mordanting, and another bio mordanting. Both mordanting processes done at 100°C temperature for 60 minutes then dyed 80°C minutes. Application was made mordants. After completing dyeing process, color f...

this study was carried out to investigate effects of copper sulphate (cuso4) additive to semen extenders on sperm parameters: progressive motility, viability, membrane integrity and dna damage, after semen dilution and cryopreservation. semen samples of 5 buffalo bulls of 3-5 years old were collected at 5 different occasions during the autumn 2011. a total number of 25 samples were used in each...

In this study, a sensing device employing gold-coated quartz tuning fork (QTF) modified with self-assembled monolayer (SAM) of L-cysteine was evaluated for the sensitive detection Cu2+ ions in aqueous solutions. Three copper (II) salts, CuSO4, CuCl2, and Cu(NO3)2, at four different concentrations (10−12, 10−10, 10−8, 10−6 M) small (100 μL) water sample amounts were each used as analytes to inve...

The effect of copper sulfate (CuSO4) on cultured human vascular endothelial (HVE) cells and cultured human fibroblasts (HAIN-55) was investigated. HVE cells were collected from umbilical veins by enzymatic digestion with collagenase. The viability, subsequent growth and DNA synthesis of both cell types were inhibited concentration-dependently by the addition of copper. The cytotoxic effect of c...