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Showing 1 to 20 of 40 for “"Peroxidase activity"”.
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Inhibition of horseradish peroxidase activity by specific antibody
… the antibody-mediated inhibition of horseradish peroxidase activity. Inhibition of enzyme activity was determined when alternate substrates were used. Typical biphasic patterns of inhibition were observed with each of five electron donors and three hydroperoxides. In no case was inhibition …
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Studies on the Heat Inactivation of Sweet Corn Peroxidase and the Relationship Between Peroxidase Activity and Quality of the Frozen Product
Made available in DSpace on 2014-12-05T19:06:44Z (GMT). No. of bitstreams: 1 5801746.pdf: 3867176 bytes, checksum: 7050f4d60e765acdbd854f930246ac25 (MD5) Previous issue date: 1958
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The adequacy of recommended microwave blanch times for carrots and green beans in selected microwave ovens
… were investigated using three microwave ovens. Peroxidase was used as an indicator enzyme for measuring blanching adequacy. It was determined that oven variation had no significant effect on percent residual peroxidase activity in either vegetable (p > 0.05). A large degree of standard deviation …
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Effect of Alpha-Tocopherol and Some Flavonoid Compounds on Inactivation of Peroxidase (Purified and Unpurified) of Selected Vegetables
… concentrations (125, 250, 500 and 1000 mg%) on peroxidase activity of tomato, eggplant and carrot was determined. All antioxidants caused reduction in peroxidase activity of crude extracts of three vegetables. As the concentration of antioxidants increased, the percent peroxidase activity …
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Effect of light stress on the homoiochlorophyllous resurrection plant Craterostigma wilmsii
… (x + c) content, anthocyanin content, ascorbate peroxidase activity, and ultrastructure, were assessed. Shaded inner whorl leaves do not experience lightchlorophyll interactions, carotenoids and anthocyanin pigments do not accumulate and ascorbate peroxidase activity remains low in them during …
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Structural dynamics and spectroscopic studies of human cytochrome c: Linking dynamics and disease
… an interaction with cardiolipin (CL) and gain of peroxidase activity. Mutations in the Cc gene lead to Thrombocytopenia 4, a disease associated with enhanced apoptotic activity. The Y48H variant is found in the 40-57 W-loop, the lowest free-energy foldon. A 1.36 Å resolution X-ray structure of the …
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Linking The Functional Diversity Of Ectomycorrhizal Fungal Species To Soil Carbon And The Genetics Of A Foundational Tree Species
… diversity of mycorrhizal fungi, including enzyme activity. In this study, I examined the composition and functional traits of the ECM fungal community on different genotypes of Pinus palustris. I tested seven enzymes: β-1,4-xylosidase, β-1,4-glucosidase, cellobiohydrolase, phosphatase, …
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Peroxidase, Protein, and Growth Responses of Cultured Tomato Pith Explants
… semi-solid medium were analyzed for changes in peroxidase activity, protein, and growth during a seven day period. Changes in the soluble peroxidase fraction were similar to those observed previously in wounded intact tissue. Protein synthesis, the presence of a carbon-energy source, aerobic …
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Interactions with bioenergetics by the mitochondria-targeted anti-apoptotic imidazole fatty acid derivative ‘TPP-IOA’.
… to target mitochondria and therein inhibit the peroxidase activity of cytochrome c that promotes activation of the apoptotic death pathway (Atkinson et al., Nat. Commun. 2011; 2:497). Therefore, TPP-IOA holds promise as a potential therapeutic agent in many pathological scenarios of cell loss. …
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The identification, purification and characterization of the fetal rat liver glutathione S-transferase isoenzyme YcYfetus
… point of approximately 8.65 and has GSH S-T activity towards a number of substrates. Significantly, the fetal isoenzyme has one of the highest glutathione peroxidase activities yet described for the purified rat liver GSH S-T towards the model substrate, cumene hydroperoxide. Kinetic studies …
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Directed evolution of split APEX peroxidase
APEX is an engineered peroxidase that catalyzes the oxidation of a wide range of substrates, facilitating its use in a variety of applications, from subcellular staining for electron microscopy to proximity biotinylation for spatially restricted proteomics and transcriptomics. While this strategy …
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THE IMPACT OF ACROLEIN ON LUNG FUNCTION: EXPLORATION OF NITROSATIVE STRESS-INDUCED LUNG INJURY AND THERAPEUTIC APPROACHES
… stress levels via measurement of glutathione peroxidase activity, nitrosative stress levels by measuring nitrite concentrations, and lipid peroxidation damage by measuring malondialdehyde in bronchoalveolar lavage fluid. The results showed that acrolein-induced respiratory toxicity had …
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Photoprotective role of beta -carotene and antioxidant enzymes: A shield against ultraviolet damage in Dunaliella bardawil
… and glutathione concentrations, ascorbate peroxidase activity, photosynthetic oxygen evolution and fluorescence parameters were monitored following exposure to UV and various light treatments to assess changes in photosynthetic processes. In addition, polyacrylamide gel electrophoresis was …
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A Study of Peroxide Resistance in the Microaerophile, Spirillum volutans
… medium. In addition, the mutant had high NADH peroxidase activity (0.072 I.U. mg-1) whereas the wild type had no detectable activity (<0.0002 I.U. mg-1). Nevertheless, the mutant was no more tolerant to O2 than the wild type. NADH peroxidase activity has not previously been reported in bacteria …
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Catalase and Superoxide Dismutase Activity in Response to Elevated Oxygen in Drosophila Melanogaster
The activity of three oxido-reductases that protect cells against free radicals were monitored in adult Drosophila melanogaster as a function of age in normal and 50% oxygen atmospheres. Difficulties in the logistics of organism maintenance and the need to extend analysis to the end of the lifespan …
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Novel Endodontic Disinfection Approach Using Nanotechnology
… treatment. We compared iron oxide NP bioactivity with currently used chemical modalities using confocal laser scanning microscopy (CLSM) and scanning electron microscopy (SEM) as analytical tools. We hypothesized that iron oxide NP with enzyme-like (peroxidase) activity catalyzes H2O2 to …
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STRUCTURAL AND CATALYTIC FEATURES AFFECTING INACTIVATION OF TYPICAL 2-CYS HUMAN PEROXIREDOXINS 2 AND 3
… (`Floodgate Hypothesis') and resumption of peroxidase activity when the hyperoxidized Prx is repaired by sulfiredoxin (Srx). However, during extreme oxidative stress, antioxidant defense mechanisms fail, resulting in damage to several organs, such as the myocardium, liver, ovaries, pancreas …
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Unravelling the role of microbiome and Escherichia coli as a trigger for Inflammatory Bowel Disease with a particular focus on Crohn's disease.
… in adhesion, phosphate binding and catalase-peroxidase activity than controls. Catalase-peroxidase activity may allow E. coli to survive within lymph nodes, consequently providing an ongoing stimulus to the immune system. Mechanisms that allow E. coli to remain viable in lymph nodes of …
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Unravelling the role of microbiome and Escherichia coli as a trigger for Inflammatory Bowel Disease with a particular focus on Crohn's disease.
… in adhesion, phosphate binding and catalase-peroxidase activity than controls. Catalase-peroxidase activity may allow E. coli to survive within lymph nodes, consequently providing an ongoing stimulus to the immune system. Mechanisms that allow E. coli to remain viable in lymph nodes of …
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Detection, activity and resistance to thermal inactivation of peroxidase in the blue crab (Callinectes sapidus)
Peroxidase is one of the most heat resistant enzymes and may cause undesirable quality changes in thermally processed foods. Peroxidase activity and its resistance to thermal inactivation in fresh and pasteurized lump, claw and flake meat of both male and female blue crabs was determined …
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