Academic literature on the topic 'Hydrogen Peroxide Scavenging'

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Journal articles on the topic "Hydrogen Peroxide Scavenging"

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M, Yadav, Kumari S, Nagraj N, et al. "Hydrogen Peroxide Scavenging by Methanolic Extracts of Coriander: An In Vitro Antioxidant Study." Pharmaceutical Drug Regulatory Affairs Journal 8, no. 1 (2025): 1. https://doi.org/10.23880/pdraj-16000162.

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Most of the nutraceutical plants, plants associated products and foods are known for their promising antioxidant properties due to the presence of several metabolites like polyphenolic compounds, flavonoids, terpenoids, vitamin C and many other. These molecules have strong tendency to scavenge the free radicals (reactive oxygen species) generated inside our body system due to the various reasons. Out of several methods for the antioxidant activity determination; hydrogen peroxide scavenging activity is an important method. This method has been used to determine the percentage scavenging activi
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Asada, Kozi. "Ascorbate peroxidase - a hydrogen peroxide-scavenging enzyme in plants." Physiologia Plantarum 85, no. 2 (1992): 235–41. http://dx.doi.org/10.1111/j.1399-3054.1992.tb04728.x.

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Asada, Kozi. "Ascorbate peroxidase - a hydrogen peroxide-scavenging enzyme in plants." Physiologia Plantarum 85, no. 2 (1992): 235–41. http://dx.doi.org/10.1034/j.1399-3054.1992.850216.x.

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K.Ramanji, Reddy* Dr.Chandaka Madhu Dr.J.Balaji Chandra Mouli Dr.B.Jagan Mohan Reddy Penumala Joshi Ballavarapu Sharanya. "COMPARATIVE STUDY ON PHYTOCHEMICAL SCREENING AND ANTIOXIDANT ACTIVITY ON ETHANOLIC EXTRACT OF MUSA ACUMINATE AND MANGIFERA INDICA." Indo American Journal of Pharmaceutical Sciences 04, no. 09 (2017): 2817–29. https://doi.org/10.5281/zenodo.888116.

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The present study was undertaken to investigate in vitro antioxidant activity of alcoholic extract of musa acuminata and mangifera indica . Method and methodlogy: The total Phenolic content was determined using folinciocalteau method while the total flavanoid content was determined using aluminum chloride method. In vitro antioxidant activity was evaluated using the Reducing power assay , Hydrogen peroxide scavenging assay, nitric oxide scavenging activity, and DPPH scavenging activity. Result: In the present study we have conclude that Mangifera Indica has a significant activity than Musa Acu
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Dr.ChandakaMadhu, Gunugurthi Ramya Sai Shreeja Alikette Deeti Prasanna Adiraju Usha Lalitha Gollapalli Shivapoojitha Meher Fathima. "COMPARATIVE STUDY ON PHYTOCHEMICAL SCREENING AND ANTIOXIDANT ACTIVITY ON ETHANOLIC EXTRACT OF ACTINIDIA DELICIOSA AND VITIS VINFERA." INDO AMERICAN JOURNAL OF PHARMACEUTICAL SCIENCES 05, no. 01 (2018): 735–44. https://doi.org/10.5281/zenodo.1174193.

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The present study was undertaken to investigate in vitro antioxidant activity of alcoholic extract of Actinidia Deliciosa And Vitis Vinfera. Method and methodlogy: The total Phenolic content was determined using folinciocalteau method while the total flavanoid content was determined using aluminum chloride method. In vitro antioxidant activity was evaluated using the Reducing power assay , Hydrogen peroxide scavenging assay, nitric oxide scavenging activity, and DPPH scavenging activity. Result: In the present study we have conclude that Vitis Vinfera, has a significant activity than Actinidia
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Enechi, Osmund Chukwuma Okeke Emmanuel Sunday* Abonyi Uchenna Collins Nwankwo Nicodemus Emeka Ndimele Ugochi Joy Benneth Moses Ebere. "EVALUATION OF IN VITRO ANTI-INFLAMMATORY AND ANTIOXIDANT POTENTIALS OF METHANOL LEAF EXTRACT OF FAGARA ZANTHOXYLOIDES." INDO AMERICAN JOURNAL OF PHARMACEUTICAL SCIENCES o6, no. 08 (2019): 14365–71. https://doi.org/10.5281/zenodo.3360753.

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<strong><em>Background:</em></strong><em> Fagara zanthoxyloides is a medicinal plant used in traditional medicine for the treatment of elephantiasis, toothache, sexual impotence, malaria, dysmenorrheal and abdominal pain among rural dwellers.</em> <strong><em>Objective:</em></strong><em> To study the In vitro anti-inflammatory and antioxidant activities of methanol extract of Fagara zanthoxyloides leaves.</em> <strong><em>Materials and Methods:</em></strong><em> Methanol extract of Fagara zanthoxyloides leaves were used for this study. In vitro anti-inflammatory studies were performed for the
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Callahan, H. L., R. K. Chouch, and E. R. James. "Hydrogen peroxide is the most toxic oxygen species for Onchocerca cervicalis microfilariae." Parasitology 100, no. 3 (1990): 407–15. http://dx.doi.org/10.1017/s0031182000078690.

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SUMMARYThe toxicity of the active oxygen species hydrogen peroxide, superoxide radical, hydroxyl radical and singlet oxygen to microfilariae (mf) has been studied in vitro, using active oxygen-generating systems and scavengers/inhibitors. Mf viability was monitored by uptake of the radiolabel, [3H]2-deoxy-D-glouse. Hydrogen peroxide and singlet oxygen, but not superoxide radical or hydroxyl radical, are toxic for mf. Hydrogen peroxide was toxic for mf within 2 h at concentrations as low as 5 ¼, an amount eosinophils have been shown to release in vitro (Weiss et al. 1986). Catalase and thiourea
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Kharat, Amol R., Farooqui Zakerab, and Kiran Ramesh Kharat. "Free Radical Scavenging Potential of Mentha arvensis of South Gujarat: Evidence from In-vitro Assay." Journal of Drug Delivery and Therapeutics 9, no. 3 (2019): 263–68. http://dx.doi.org/10.22270/jddt.v9i3.2866.

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Present work was undertaken to evaluate efficacy of aqueous and methanol extracts Mentha arvensis leaves as free radical scavenger. The free radical scavenging activity was evaluated by nitric oxide scavenging method, hydrogen peroxide scavenging method and ferric thiocyanate method. The result of the studies was compared with the standard solution of Ascorbic Acid (Vitamin C) treated with same reagent. The results of all the studies showed significant free radical scavenging activity in both aqueous and methanolic extracts of Mentha arvensis and methanolic extract showed the highest free radi
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Paździoch-Czochra, Marzanna, and Anna Wideńska. "Spectrofluorimetric determination of hydrogen peroxide scavenging activity." Analytica Chimica Acta 452, no. 2 (2002): 177–84. http://dx.doi.org/10.1016/s0003-2670(01)01455-6.

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Gillham, D. J., and A. D. Dodge. "Hydrogen-peroxide-scavenging systems within pea chloroplasts." Planta 167, no. 2 (1986): 246–51. http://dx.doi.org/10.1007/bf00391422.

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Dissertations / Theses on the topic "Hydrogen Peroxide Scavenging"

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Miyake, Chikahiro. "Scavenging Systems of Hydrogen Peroxide in Chloroplast Thylakoid Membranes and Algal Cells." Kyoto University, 1994. http://hdl.handle.net/2433/168925.

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本文データは平成22年度国立国会図書館の学位論文(博士)のデジタル化実施により作成された画像ファイルを基にpdf変換したものである<br>Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(農学)<br>甲第5739号<br>農博第793号<br>新制||農||674(附属図書館)<br>学位論文||H6||N2672(農学部図書室)<br>UT51-94-J171<br>京都大学大学院農学研究科農芸化学専攻<br>(主査)教授 浅田 浩二, 教授 山田 康之, 教授 關谷 次郎<br>学位規則第4条第1項該当
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Pakarinen, Darius. "On the mechanism of H2O2 decomposition on UO2-surfaces." Thesis, KTH, Skolan för kemi, bioteknologi och hälsa (CBH), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-240564.

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Deep geological repository has been investigated as a solution for long term storage of spent nuclear fuel in Sweden for more than 40 years now. The Swedish nuclear fuel and waste management company (SKB) are commissioning the deep repository and they must ensure that nuclear waste is isolated from the environment for thousands of years. During this time the containment must withstand physical stress and corrosion. It is important for a safety analysis to determine the different reactions that could occur during this time. If the physical barriers break down, radiolysis of water will occur. Hy
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Mustaree, Shayla. "The •OH scavenging effect of bromide ions on the yield of H[subscript 2]O[subscript 2] in the radiolysis of water by [superscript 60]Co γ-rays and tritium β-particles at room temperature : a Monte Carlo simulation study". Mémoire, Université de Sherbrooke, 2016. http://hdl.handle.net/11143/8183.

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Abstract: Monte Carlo simulations were used here to compare the radiation chemistry of pure water and aqueous bromide solutions after irradiation with two different types of radiation, namely, tritium β-electrons (~7.8 keV) and [superscript 60]Co γ-rays/fast electron (~1 MeV) or high energy protons. Bromide ions (Br-) are known to be selective scavengers of hydroxyl radicals •OH precursors of hydrogen peroxide H[subscript 2]O[subscript 2]. These simulations thus allowed us to determine the yields (or G-values) of H[subscript 2]O[subscript 2] in the radiolysis of dilute aqueous bromide solution
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Morris, James Jeffrey. "The ‘Helper’ Phenotype: A Symbiotic Interaction Between Prochlorococcus and Hydrogen Peroxide Scavenging Microorganisms." 2011. http://trace.tennessee.edu/utk_graddiss/1004.

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The unicellular cyanobacterium Prochlorococcus is the numerically dominant photosynthetic organism throughout the temperate and tropical open oceans, but it is difficult to grow in pure cultures. We developed a system for rendering spontaneous streptomycin-resistant mutants of Prochlorococcus axenic by diluting them to extinction in the presence of “helper” heterotrophic bacteria, allowing them to grow to high cell concentrations, and then killing the helpers with streptomycin. Using axenic strains obtained in this fashion, we demonstrated that Prochlorococcus experiences a number of growth
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Schallreuter, Karin U., Mohamed M. A. Salem, Nick C. Gibbons, et al. "Blunted epidermal l-tryptophan metabolism in vitiligo affects immune response and ROS scavenging by Fenton chemistry, part 2: epidermal H2O2/ONOO−-mediated stress in vitiligo hampers indoleamine 2,3-dioxygenase and aryl hydrocarbon receptor-mediated immune response signaling." 2012. http://hdl.handle.net/10454/7435.

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no<br>Vitiligo is characterized by a mostly progressive loss of the inherited skin color. The cause of the disease is still unknown, despite accumulating in vivo and in vitro evidence of massive oxidative stress via hydrogen peroxide (H2O2) and peroxynitrite (ONOO−) in the skin of affected individuals. The most favored hypothesis is based on autoimmune mechanisms. Since depletion of the essential amino acid l-tryptophan (Trp) severely affects various immune responses, we here looked at Trp metabolism and signaling in these patients. Our in vivo and in vitro data revealed total absence of epide
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Dukoff, David. "The Impact of ROS Scavenging on NMDA and AMPA Receptor Whole Cell Currents in Pyramidal Neurons of the Anoxia Tolerant Western Painted Turtle." Thesis, 2013. http://hdl.handle.net/1807/42826.

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Extended periods of oxygen deprivation cause brain death in mammals but the western painted turtle overwinters in anoxic mud for months without damage. Neural protection is achieved through decreases in the whole cell currents of N-methyl-D-aspartate and alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptors (NMDAR and AMPAR) that are dependent on a mild increase in intracellular calcium from the mitochondria. The goal of this research was to determine if natural anoxic decreases in reactive oxidative species (ROS) serve as the signal to bring about these changes. Reductions in cel
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Schallreuter, Karin U., Mohamed M. A. Salem, Nick C. Gibbons, et al. "Blunted epidermal l-tryptophan metabolism in vitiligo affects immune response and ROS scavenging by Fenton chemistry, part 1: epidermal H2O2/ONOO−-mediated stress abrogates tryptophan hydroxylase and dopa decarboxylase activities, leading to low serotonin and melatonin levels." 2012. http://hdl.handle.net/10454/7436.

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no<br>Vitiligo is characterized by a progressive loss of inherited skin color. The cause of the disease is still unknown. To date, there is accumulating in vivo and in vitro evidence for massive oxidative stress via hydrogen peroxide (H2O2) and peroxynitrite (ONOO−) in the skin of affected individuals. Autoimmune etiology is the favored theory. Since depletion of the essential amino acid l-tryptophan (Trp) affects immune response mechanisms, we here looked at epidermal Trp metabolism via tryptophan hydroxylase (TPH) with its downstream cascade, including serotonin and melatonin. Our in situ im
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Book chapters on the topic "Hydrogen Peroxide Scavenging"

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Chelliah, Ramachandran, Eric Banan-MwineDaliri, and Deog-Hwan Oh. "Screening for Antioxidant Activity: Hydrogen Peroxide Scavenging Assay." In Methods in Actinobacteriology. Springer US, 2022. http://dx.doi.org/10.1007/978-1-0716-1728-1_65.

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Cakmak, I., and H. Marschner. "Effect of zinc nutritional status on activities of superoxide radical and hydrogen peroxide scavenging enzymes in bean leaves." In Plant Nutrition — from Genetic Engineering to Field Practice. Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-1880-4_21.

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Nandikatti, Vijayalakshmi, M. Bujji Babu, K. J. Vergelia Jenifer, and Sk Abida. "Extraction, Isolation, Phytochemical Screening and Evaluation of Anti Oxidant and Hypoglycemic Activity of Methanolic Extract of Tagetes Patula Linn Flowers." In Current Trends in Drug Discovery, Development and Delivery (CTD4-2022). Royal Society of Chemistry, 2023. http://dx.doi.org/10.1039/9781837671090-00666.

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Tagetes patula L. flowers possess different therapeutic properties, because of the presence of phytochemicals like terpenoids, flavonoids and thiophenes. The main objective of this study was to do extraction, followed by phytochemical screening, isolation and evaluation of antidiabetic and anti-oxidant activities of methanolic extract of Tagetes patula L. flowers. The evaluation of antidiabetic activity was carried out by α–amylase inhibition method and the anti-oxidant activity was evaluated hydrogen peroxide scavenging assay and nitric oxide scavenging method. The crude methanolic extract an
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Habibi, Ghader. "Hydrogen Peroxide (H2O2) Generation, Scavenging and Signaling in Plants." In Oxidative Damage to Plants. Elsevier, 2014. http://dx.doi.org/10.1016/b978-0-12-799963-0.00019-8.

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Zhang, Qiu-Mei, Akira Tachibana,, and Shuji Yonei. "Oxidative stress models: E. coli, cultured cells." In Experimental protocols for reactive oxygen and nitrogen species. Oxford University PressOxford, 2000. http://dx.doi.org/10.1093/oso/9780198506683.003.0089.

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Abstract Reactive oxygen species occur naturally in aerobic cells, arising from a wide variety of intracellular and environmental sources. Cells maintain strong defence systems against such threats, for example superoxide dismutases, catalases, and peroxidases. In some circumstances, the concentration of reactive oxygen species increases to a level which overwhelms the basal level of such scavenging capacity, giving rise to a condition at oxidative stress (1,2). Artificial, oxidative stress can be induced by addition of hydrogen peroxide or superoxide-generating drugs, or by increasing the par
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Suematsu, Makoto, Geert W. Schmid-Schönbein, Yuzuru Ishimura, and Masaharu Tsuchiya. "Visual assessment of oxidative stress by multifunctional digital microfluorography." In Free Radicals. Oxford University PressOxford, 1996. http://dx.doi.org/10.1093/oso/9780199635603.003.0006.

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Abstract There has been an increase in the understanding of the potential role of oxidants, such as the superoxide anion (OD, hydrogen peroxide (H202), hydroxyl radicals COH), as mediators of cell injury in a wide variety of physiological and pathophysiological conditions. These active oxygen metabolites can interact with cellular membrane structures thereby inducing lipid peroxidation, which has been implicated as one of the major mechanisms of ‘oxidative stress’ in tissue injury. By contrast, the nitric oxide radical (NO”), which has been identified as an endothelium-derived relaxing factor,
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Tomovska, Julijana, and Ilmije Vllasaku. "Comparative Methods for Antioxidant Activity in Extract of Milk." In Multidisciplinary Applications of Natural Science for Drug Discovery and Integrative Medicine. IGI Global, 2023. http://dx.doi.org/10.4018/978-1-6684-9463-9.ch007.

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Milk, known as “medicine and food for a long life,” is characterized by a certain nutritional value. It is an irreplaceable food for children, adults, and developed countries to pay attention to its production. In this chapter, there is an emphasis on antioxidants are compounds, which are not nutrients but have antioxidant capacity in vitro and provide an artificial index of antioxidant power. The material for this examination is milk from three farms and commercial milk. The antioxidant activity is examined by two methods: Phosphomolybdate method, where the results obtained from calibration c
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Kumari, Asha, Mahendar Singh Bhinda, Sachin Sharma, et al. "ROS Regulation Mechanism for Mitigation of Abiotic Stress in Plants." In Reactive Oxygen Species [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.99845.

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Plants respond to various stresses during their lifecycle among which abiotic stress is the most severe one comprising heat, cold, drought, salinity, flooding, etc. which take a heavy toll on crop yield worldwide in every corresponding year. ROS has a dual role in abiotic stress mechanisms where, at high levels, they are toxic to cells while at the same time, the same molecule can function as a signal transducer that activates a local as well as a systemic plant defense response against stress. The most common ROS species are Hydrogen peroxide (H2O2), Superoxide anions (O2-), Hydroxyl radicals
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Díaz, Mario G., Esteban G. Vega-Hissi, Matias F. Andrada, and Juan C. Garro Martinez. "Computer-assisted Study of Garlic Organosulfur as Antioxidant Agents." In Advanced Pharmacy. BENTHAM SCIENCE PUBLISHERS, 2023. http://dx.doi.org/10.2174/9789815049428123010006.

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Although many sulfur-containing garlic compounds exhibit antioxidant activity, little is known about the molecular mechanisms through which these compounds react with reactive oxygen species. For this reason, in this chapter, we present a summary of various papers in which, the scavenging of hydrogen peroxide and hydroxyl radical by garlic compounds allyl methyl disulfide, allyl methyl sulfide, and diallyl sulfide is analyzed from a theoretical-quantum outlook. Different computational methods and methodologies were analyzed. The DFT functional B3LYP, CAM-B3LYP, BKM, M05-2X, and M06-2X and even
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