Relevant bibliographies by topics / Phenol Oxidas

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Phenol Oxidas'

Author: Grafiati
Published: 3 June 2025
Last updated: 31 July 2025

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Journal articles on the topic "Phenol Oxidas"

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Vishnu, Priya S., and P. Somasundaram. "INDUCED PHENOLOXIDASE PROFILES IN SILKWORM Bombyx mori (L.) UNDER BIOTIC STRESS." International Journal of Engineering Technologies and Management Research 4, no. 10 (2017): 46–52. https://doi.org/10.5281/zenodo.1042479.

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<strong><em>Phenol oxidase (PO) is one of the stress enzyme protein in living organism. The conversion of Pro-PO into an activation form of PO required a stress protein. In the present study has emerged with the novel finding of induced phenoloxidase was identified under bacterial endotoxin viz., Lipopolysaccharide (LPS) activity using silkworm Bombyx mori as an animal model. The PO enzyme plays an important role for insect survival during pathophysiological conditions. The enzyme activity was analyzed from ten different silkworm races with two phenolic substrates viz., L-Dopa and Dopamine by
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B, Anita, and Samiyappan S. "NDUCTION OF SYSTEMIC RESISTANCE IN RICE BY PSEUDOMONAS FLUORESCENT AGAINST RICE ROOT KNOT NEMATODE MELOIDOGYNE GRAMINICOLA." Journal of Biopesticides 5 (April 1, 2012): 53–59. https://doi.org/10.57182/jbiopestic.5.0.53-59.

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Induction ofdefense enzymes phenol, peroxidase (PO), polyphenol oxidase (PPO),phenyl ammonia lyase (PAL), super oxide dismutase (SOD) and chitinase by Pseudomonasfluorescens isolate Pf1, against challenge inoculation of Meloidogynegraminicola in rice was studied in vitro. The activity of phenol,PO,PPO, PAL and chitinase was higher in the bacterized rice plants. Theanalysis of isoform profiles revealed unique PO, PPO and SOD isoforms inducedin plants treated with P. fluorescens. The present study implies earlierand higher accumulation of phenols and defense enzymes viz., PO, PPO,PAL and chitina
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Truchan, Nadina, Christian Jandl, Alexander Pöthig, Stefan Breitenlechner, and Thorsten Bach. "Access to Biphenyls by Palladium-Catalyzed Oxidative Coupling of Phenyl Carbamates and Phenols." Synthesis 51, no. 16 (2019): 3060–76. http://dx.doi.org/10.1055/s-0037-1611482.

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The oxidative cross-coupling of phenols (3 equiv) to various substituted phenyl N,N-diethylcarbamates was explored with a variety of substrates. Pd(OAc)2 was employed as the catalyst (20 mol%) and K2S2O8 as the stoichiometric oxidant in trifluoroacetic acid as the solvent (50 °C, 2 h). Carbamates without or with a substituent on the phenyl ring (Me, Ph, Cl, OMe) underwent the reaction unless the phenyl substituent was too strongly electron withdrawing (CN). Cross-coupling occurred exclusively in the ortho position relative to the carbamate group. The regioselectivity at the phenol (ortho or pa
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Durrant, H. J., N. A. Ratcliffe, C. R. Hipkin, A. Aspan, and K. Söderhäll. "Purification of the pro-phenol oxidase enzyme from haemocytes of the cockroach Blaberus discoidalis." Biochemical Journal 289, no. 1 (1993): 87–91. http://dx.doi.org/10.1042/bj2890087.

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Pro-phenol oxidase was purified from the haemocytes of the cockroach Blaberus discoidalis by Blue Sepharose chromatography, hydrophobic-interaction chromatography on a Phenyl-Superose column and, finally, gel filtration on a Superose 6 column. Results suggest that the molecule exists as a polymer of identical 76 kDa monomeric units. The enzyme is a glycoprotein with pI of 5.2 and can be converted by trypsin into phenol oxidase.
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T, Thiruveni, Shanthi M, Murali Baskaran R K, and Raguchander T. "Field Evaluation of Microbial Consortia Mediated Resistance against Okra Shoot and Fruit borer, Earias vittella." Madras Agricultural Journal 99, March (2012): 102–6. http://dx.doi.org/10.29321/maj.10.100025.

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A field experiment was conducted during Kharif 2009 to evaluate the microbial consortia mediated resistance against okra shoot and fruit borer, Earias vittella (Fab.) in okra variety, Arka Anamika and hybrid, CoBhH1. The microbial consortium Pseudomonas fluorescens Pf1 + Beauveria bassiana B2 isolate (Pf1 + B2) was effective in reducing the shoot and fruit borer infestation through seed treatment, soil application and foliar spray. Pf1 + B2 recorded minimum shoot damage during vegetative and reproductive phases (3.99 and 14.33 %) as against untreated check (13.58 and 24.16 %). Fruit infestatio
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Kidwai, Mazaahir, Arti Jain, Abha Sharma, and Ramesh Chander Kuhad. "Ecofriendly approach for detection of phenols in water using laccase from different fungi." Water Science and Technology 66, no. 2 (2012): 385–93. http://dx.doi.org/10.2166/wst.2012.198.

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Laccase-initiated oxidative coupling reactions of phenol and its derivatives with 4-aminoantipyrene using air as an oxidant has been investigated. The oxidation reaction of phenols and 4-aminoantipyrene is getting a lot of attention due to environmental concerns. Oxidation of simple phenol and 4-aminoantipyrene as a benchmark reaction enabled us to rank the relative oxidation ability of various laccases. Among the laccases tested, laccase from Pycnoporus cinnabarinus successfully yielded 72% antipyrilquinoneimine dye. The present method can also be used to determine p-substituted phenols and c
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Thangaraj, T., A. Vinayakam, and K. Nellaiappan. "Phenol oxidase activity of a monogenean, Paramazocraes thrissocles." Journal of Helminthology 60, no. 3 (1986): 234–38. http://dx.doi.org/10.1017/s0022149x00026158.

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AbstractThe phenol oxidase of a monogenean, Paramazocraes thrissocles, oxidizes phenolic amines more effectively than other phenols studied. Based on the substrate specificity, the probable substrate for eggshell formation has been suggested. The enzyme shows the pH optimum of 7–2. At 40°C it shows maximum activity. Proenzyme is activated by metal ions and detergents. Copper chelating compounds strongly inhibit the enzyme.
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Guo, Shengmei, Hu Cai, Wenjie Yan, et al. "NiCl2 as a Cheap and Efficient Precatalyst for the Coupling of Aryl Fluorosulfonate and Phosphite/Phosphine Oxide." Synlett 32, no. 14 (2021): 1453–56. http://dx.doi.org/10.1055/a-1524-4912.

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AbstractHerein, NiCl2 is employed as a cheap precatalyst in the formation of C(sp2)–P bond via cross-coupling reaction of phenol derivatives and phosphine oxides/phosphites. This catalytic system allows a variety of phenols with diverse functional groups to transform into phosphates with good yields. No additional additive is used in this reaction.
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Loncar, Nikola, Natasa Bozic, Ivan Andjelkovic, et al. "Removal of aqueous phenol and phenol derivatives by immobilized potato polyphenol oxidase." Journal of the Serbian Chemical Society 76, no. 4 (2011): 513–22. http://dx.doi.org/10.2298/jsc100619046l.

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Phenols containing halogens, which tend to deactivate the aromatic nuclei, constitute a significant category of highly toxic and difficult-to-degrade pollutants, which arise from a wide variety of industries. The main purpose of this study was to obtain an inexpensive immobilized enzyme for the removal of phenols. Partially purified potato polyphenol oxidase (PPO) was immobilized onto different commercial and laboratory produced carriers. Three of the obtained biocatalysts, with the highest PPO activities, namely Eupergit C250L-PPO; Celite-PPO and Cellulose M-PPO, were tested in a batch reacto
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Ezerskis, Z., and Z. Jusys. "Oxidation of chlorophenols on Pt electrode in alkaline solution studied by cyclic voltammetry, galvanostatic electrolysis, and gas chromatography­mass spectrometry." Pure and Applied Chemistry 73, no. 12 (2001): 1929–40. http://dx.doi.org/10.1351/pac200173121929.

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Potentiodynamic investigations on a platinum electrode show that oxidation of phenol, monochlorophenols, dichlorophenols, 2,3,6-, 2,4,5-, 2,4,6-trichlorophenols, and pentachlorophenol in 1 M NaOH solution, containing 1 mM of phenols, proceeds in the potential region of Pt oxide formation. The oxidation rate of phenols decreases with the increase in the number of chlorine atoms in the benzene ring in the row: phenol &gt; monochlorophenols &gt; dichlorophenols &gt; trichlorophenols &gt; pentachlorophenol. The electrochemical stability of phenols, as studied using a cyclic voltammetry, depends on
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Dissertations / Theses on the topic "Phenol Oxidas"

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Burton, Stephanie Gail. "Biocatalytic and biomimetic studies of polyphenol oxidase." Thesis, Rhodes University, 1994. http://hdl.handle.net/10962/d1004088.

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Mushroom polyphenol oxidase (EC 1.14.18.1) was investigated to determine its potential for application as a biocatalyst in the synthesis of o-quinones, in organic medium. In order to determine the kinetic properties of the biocatalyst, a system was devised which comprised an immobilised polyphenol oxidase extract, functioning in chloroform. The system was hydrated by the addition of buffer. A simple method for the consistent measurement of reaction rates in this heterogenous system was designed and used to obtain detailed enzyme kinetic data relating to optimisation of reaction conditions and
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Avci, Gulden. "Analysis Of Phenol Oxidation Products By Scytalidium Thermophilum Bifunctional Catalase/phenol Oxidase (catpo)." Phd thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613770/index.pdf.

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This thesis was aimed to analyze phenol oxidation by the bifunctional catalase/phenol oxidase of the thermophilic fungus Scytalidium thermophilum. Several reactive oxygen species (ROS) are continuously produced in fungi under oxidative stress. Depending on the nature of the ROS species, some are highly toxic and are rapidly detoxified by various cellular enzymatic mechanisms, including the production of catalase. S. thermophilum produces a novel bifunctional catalase-phenol oxidase (CATPO) which is capable of oxidizing phenolics in the absence of hydrogen peroxide. Phenol oxidases convert phen
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Korkmaz, Erdural Beril. "Morphine Biotransformation By Microbial Phenol Oxidases." Master's thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/3/12607014/index.pdf.

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ABSTRACT MORPHINE BIOTRANSFORMATIONS BY MICROBIAL PHENOL OXIDASES Erdural Korkmaz, Beril M.S., Department of Chemical Engineering Supervisor: Prof. Dr. Ufuk Bakir Co-Supervisor: Prof. Dr. Ayhan S. Demir January 2006, 96 pages The objective of this study is to perform morphine biotransformation by using phenol oxidases. Syctalidium thermophilum, Thermomyces lanuginosus and Phanerochaete chrysosporium cells and culture fluid were used as microbial intracellular and extracellular phenol oxidases. Besides the phenol oxidases produced in laboratory, commercial pure phenol oxidases, A.
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Bao, Haihong. "Biocatalysis of tyrosinase in organic solvent media using phenolic substrate models." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/MQ50716.pdf.

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Erturk, Bedriye Durhan. "Determination Of Phenolics Concentration Using Cross-linked Phenol Oxidase Aggregates." Master's thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/12609647/index.pdf.

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The main object of the presented study was investigation of the use of cross-linked enzyme (tyrosinase) aggregates (CLTA) obtained from crude mushroom extract for a rapid phenolic content analysis in wines. In addition, a comparison of phenolic characteristics of Turkish red wines was performed. Reproducible and reliable results in total phenolic measurement were obtained with CLTAs similar to pure tyrosinase and tyrosinase obtained from crude mushroom extract. Measurement of total phenolic content is possible both in standard solutions and in complex matrices, such as wine. In a very short ti
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Kaptan, Yelda. "Utilization Of Scytalidium Thermophilum Phenol Oxidase In Bioorganic Synthesis." Master's thesis, METU, 2004. http://etd.lib.metu.edu.tr/upload/2/12605353/index.pdf.

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ABSTRACT UTILIZATION OF SCYTALIDIUM THERMOPHILUM PHENOL OXIDASE IN BIOORGANIC SYNTHESES Kaptan, Yelda M.S., Department of Biotechnology Supervisor: Prof. Dr. Z&uuml<br>mr&uuml<br>t B. &Ouml<br>gel Co-supervisor: Prof Dr. Ufuk Bakir September 2004, 90 pages In this study, the ultimate aim was to utilize phenol oxidases of Scytalidium thermophilum in bioorganic syntheses. For this purpose, studies were conducted towards enhancing the production of phenol oxidases by Scytalidium thermophilum, developing a suitable method for laccase activity assays, analyzing the effects of organic so
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Chanton, Patrick. "Calibration of phenol oxidase measurement in acidic wetland environments." Thesis, Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/52329.

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Phenol oxidases mediate the degradation of recalcitrant compounds, polyphenolics, in wetland soils and are considered to play a key role in the microbial carbon cycle of peatlands which predominate in boreal biomes. In order to validate a method for quantification of oxidative enzyme activity in acidic wetland environments, the relationship between pH and substrate oxidation was studied using the standard enzyme tyrosinase and in soils collected from six freshwater wetlands including three marshes in north Florida and peatlands of northern Minnesota. Phenol oxidase (PO) activity was quantified
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Ncanana, Sandile Welcome. "Biocatalytic studies of phenol oxidases producing antioxidants." Doctoral thesis, University of Cape Town, 2007. http://hdl.handle.net/11427/5429.

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Includes bibliographical references (leaves 172-198).<br>In recent years there has been increasing interest in the production of oligomers and polymers of economic importance using biocatalysts; the application of enzymes in dimerisation or polymerisation processes can lead to the synthesis of unique compounds, with novel properties, that could not be easily achieved by conventional methods. Further, the application of biocatalysts in polymerization processes can be exploited in development of bioremediation systems, and there is a demand for new technologies that can be utilized in the remova
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Makgae, Mosidi Elizabeth. "Environmental electrochemistry of organic compounds at metal oxide electrodes." Thesis, Stellenbosch : Stellenbosch University, 2004. http://hdl.handle.net/10019.1/49947.

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Dissertation (PhD)--Stellenbosch University, 2004.<br>ENGLISH ABSTRACT: This study investigates the electrochemical oxidation of phenol. Phenol is a major toxin and water pollutant. In addition, during water treatment it reacts with chlorine to produce carcinogenic chlorophenols. lts treatment down to trace levels is therefore of increasing concern. For this purpose, dynamically stable anodes for the breakdown of phenols to carbon dioxide or other less harmful substances were developed and characterized. The anodes were prepared from mixed oxides of tin (Sn) and the precious metals ruthe
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Yuzugullu, Yonca. "Functional And Structural Analysis Of Catalase-phenol Oxidase From Scytalidium Thermophilum." Phd thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/3/12611463/index.pdf.

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Scytalidium thermophilum produces a novel phenol oxidase, which has turned out to be a bifunctional catalase-phenol oxidase (CATPO) during the course of this work, by other researchers of our group. Therefore, in the beginning of the studies, substrate specificity and inhibitor assays were conducted on the crude enzyme, followed by production, purification, cloning, expression, and mutagenesis and crystallography studies for further functional and structural analysis of CATPO. Accordingly, substrate specificity and inhibitory tests applied for crude enzyme characterisation presented the simila
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Books on the topic "Phenol Oxidas"

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Lantto, R. Protein cross-linking with oxidative enzymes and transglutaminase: Effects in meat protein systems. VTT Technical Research Centre of Finland, 2007.

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Canada. Environmental Protection Service. Technical Services Branch., ed. Urea: Environmental and technical information for problem spills. Environmental Canada, Environmental Protection Service, 1985.

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Canada. Environmental Protection Programs Directorate. Technical Services Branch., ed. Sulphur dioxide: Environmental and technical information for problem spills. Environment Canada, Environmental Protection Service, 1985.

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Canada. Environmental Protection Programs Directorate. Technical Services Branch., ed. Ethylene glycol: Environmental and technical information for problem spills. Environment Canada, Environmental Protection Service, 1985.

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Canada. Environmental Protection Programs Directorate. Technical Services Branch., ed. Nitric acid: Environmental and technical information for problem spills. Environment Canada, Environmental Protection Service, 1985.

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Canada. Environmental Protection Programs Directorate. Technical Services Branch., ed. Formaldehyde. Environmental Protection Service, 1985.

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Canada. Environmental Protection Programs Directorate. Technical Services Branch., ed. Cyclohexane: Environmental and technical information for problem spills. Environment Canada, Environmental Protection Service, 1985.

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Canada. Environmental Protection Programs Directorate. Technical Services Branch., ed. Acetic acid: Environmental and technical information for problem spills. Environment Canada, Environmental Protection Service, 1985.

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Canada. Environmental Protection Programs Directorate. Technical Services Branch., ed. Naphtha: Environmental and technical information for problem spills. The Branch, 1985.

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Canada. Environmental Protection Programs Directorate. Technical Services Branch., ed. Sodium sulphate: Environmental and technical information for problem spills. Environment Canada, Environmental Protection Service, 1985.

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Book chapters on the topic "Phenol Oxidas"

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Barton, Derek, and Steven V. Ley. "Design of a Specific Oxidant for Phenols." In Ciba Foundation Symposium 53 - Further Perspectives in Organic Chemistry. John Wiley & Sons, Ltd., 2008. http://dx.doi.org/10.1002/9780470720349.ch5.

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McEvily, A. J., R. Iyengar, and A. T. Gross. "Inhibition of Polyphenol Oxidase by Phenolic Compounds." In ACS Symposium Series. American Chemical Society, 1992. http://dx.doi.org/10.1021/bk-1992-0506.ch025.

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Yapici, Ismail. "Natural Antioxidants." In Natural Antioxidants and in Vitro Antioxidant Assays. Nobel Tip Kitabevleri, 2024. http://dx.doi.org/10.69860/nobel.9786053359333.2.

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Antioxidants are substances that provide protection against oxidants. They prevent the formation of oxidants and the damage they can cause to biomolecules. They extend the shelf life of foods. Antioxidants can be natural or synthetic. Some enzymes, phenolic compounds, flavonoids, carotenoids and some vitamins found in plants, fruits and vegetables are effective natural antioxidant compounds. There are also effective synthetic antioxidants such as BHA, BHT, TBHQ. However, it has been stated that synthetic antioxidants added to foods are harmful and their inclusion in foods is limited. Therefore
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TSUCHIDA, EISHUN, HIROYUKI NISHIDE, and TOSHIHIKO MAEKAWA. "Synthesis of Poly(phenylene Oxides) by Electrooxidative Polymerization of Phenols." In ACS Symposium Series. American Chemical Society, 1985. http://dx.doi.org/10.1021/bk-1985-0282.ch015.

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Winkelmann, Jochen. "Diffusion coefficient of phenyl-methanol in dideuterium oxide." In Diffusion in Gases, Liquids and Electrolytes. Springer Berlin Heidelberg, 2018. http://dx.doi.org/10.1007/978-3-662-54089-3_691.

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Zavarzina, A. G. "Heterophase Synthesis of Humic Acids in Soils by Immobilized Phenol Oxidases." In Soil Enzymology. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-14225-3_10.

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Sipilä, Jussi, Anssi Haikarainen, Pekka Pietikäinen, et al. "Metal—Schiff Base Complexes: Useful Mimics for Phenol Oxidants in Catalytic Delignification?" In ACS Symposium Series. American Chemical Society, 2001. http://dx.doi.org/10.1021/bk-2001-0785.ch017.

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Ma, Huimin, Yanping Qu, Shenxue Wang, et al. "Study on the Adsorption of Phenol Wastewater by Graphene Oxide/Corn Stover." In Environmental Governance, Ecological Remediation and Sustainable Development. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-52901-6_54.

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Mijatovic, Sanja, Danijela Maksimovic-Ivanic, Marco Donia, et al. "(S,R)-3-Phenyl-4,5-dihydro-5-isoxazole acetic acid–Nitric Oxide (GIT-27NO) – New Dress for Nitric Oxide Mission." In Nitric Oxide (NO) and Cancer. Springer New York, 2010. http://dx.doi.org/10.1007/978-1-4419-1432-3_23.

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Pacheco, Patricia, Dévora Carrión, Sandy Gavilanes, and Mónica Espadero. "In vitro Antibacterial Activity of Ethanolic and Acetonic Extracts of Curcuma longa Against Propionibacterium acnes (Cutibacterium acnes)." In Lecture Notes in Networks and Systems. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-87065-1_27.

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Abstract Throughout history, plants have been indispensable in the development of society due to their high content of bioactive substances, which are used in different industries such as food, pharmaceutical, and cosmetics. Curcuma longa is a perennial species that belongs to the Zingiberaceae family, which is used for therapeutic purposes due to its anti-oxidant, anti-inflammatory and antibacterial properties, among others. This research evaluates the antibacterial activity of ethanolic and acetonic extracts of Curcuma longa against Propionibacterium acnes, recently renamed Cutibacterium acn
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Conference papers on the topic "Phenol Oxidas"

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Soriaga, Manuel P., G. M. Berry, C. Bhardwaj, et al. "Chemisorption of Organic Molecules on Metal Electrode Surfaces." In CORROSION 1990. NACE International, 1990. https://doi.org/10.5006/c1990-90300.

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Abstract The chemisorption of various organic functional groups from aqueous solutions onto smooth single-crystal and polycrystalline electrodes, and the resistance of the resulting monolayer intermediates towards electrochemical oxidation have been studied; these investigations were motivated by the need to understand, at the atomic level, metal passivation by monolayer organic coatings. The electrodes employed were Rh, Pd, Ir, Pt, and Au whose anodic dissolution is preceded by surface-oxide formation even in highly acidic media. Resistance towards anodic oxidation can thus be associated with
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Natsi, P. D., E. Zande, and P. G. Koutsoukos. "Protective Coatings against Formation of Scale Deposits." In CONFERENCE 2023. AMPP, 2023. https://doi.org/10.5006/c2023-19528.

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Abstract Hydrophilic polymers are known to induce the deposition of sparingly soluble salts. Poly-2-hydroxyethyl methacrylate, (PHEMA), a hydrogel used for the fabrication of contact and intraocular lenses has been reported to favor the nucleation and crystal growth of calcium phosphate. PHEMA disks coated with graphene oxide (GO) were good nucleators of Hydroxyapatite (HAP). which precipitated at rates higher in comparison with the respective on the uncoated material. The mechanism of HAP crystal growth was controlled by surface diffusion as shown by the dependence of the rates on the relativ
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Popovici, Lucia-Florina, and Simona Oancea. "COMPARATIVE STUDY ON PHENOLICS, FLAVONOIDS, TANNINS AND ANTIOXIDANT PROPERTIES OF CALENDULA OFFICINALIS EXTRACTS OBTAINED BY DIFFERENT EXTRACTION TECHNIQUES." In SGEM International Multidisciplinary Scientific GeoConference 24. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024/6.1/s25.21.

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The aim of this study was to evaluate the influence of several extraction methods on the content of bioactive compounds of polyphenolic structure and antioxidant properties of petals from marigold flowers (Calendula officinalis). Ethanolic extracts prepared using maceration, turbo-extraction and bead-beating techniques were investigated for total phenolics, flavonoids and tannins, and antioxidant activities as measured by FRAP and DPPH assays, as well. The results showed that the highest phenolic content (1316.367 � 4.316 mg GAE/100 g DW) and antioxidant activity by FRAP (505.755 � 4.623 mg as
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O’Donoghue, Mike, Vijay Datta, and Ian Fletcher. "A Hot Spread Epoxy Phenolic Coating for CUI Mitigation: from Confusion to Fusion for Facility Owners." In Coatings+ 2021. SSPC, 2021. https://doi.org/10.5006/s2021-00001.

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Abstract It is fair to say that maintenance in the worldwide oil and gas industry has changed dramatically over the past ten years. Facility owners are more than ever looking to reduce shutdown times, to improve plant efficiency and to extend plant lifetimes. With this comes the increased industry understanding about corrosion under insulation (CUI) with its deleterious impact and the ongoing desire for pragmatic high performance and cost-effective coating solutions. CUI maintenance work can take up to 50% or more of a typical oil and gas facility’s maintenance budget. With such a heavy impact
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Wang, Haoyu, Xue Han, Kaiyang Li, et al. "Corrosion Performance of Reactor Candidate Alloys During Hydrothermal Liquefaction (HTL) of Cellulose in a Batch Reactor." In CONFERENCE 2022. AMPP, 2022. https://doi.org/10.5006/c2022-18010.

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Abstract Hydrothermal liquefaction (HTL) is seen as a promising thermochemical approach to convert wet and waste biomass feedstocks into biocrude oils and other valuable chemicals. One of the critical technical barriers that must be addressed for the industrial deployment of HTL technology is the corrosion of process core equipment, especially the refining reactors, due to the presence of the hot-compressed water medium, applied alkali catalyst, and aggressive intermediate and final products (such as aggressive sulfur and/or chlorinated compounds, organic acids) generated during the conversion
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O’Donoghue, Mike, Vijay Datta, and Carl Reed. "The Performance Effect of Coating Rusty Steel with an Epoxy-Phenalkamine Coating." In CORROSION 2018. NACE International, 2018. https://doi.org/10.5006/c2018-11067.

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Abstract Popular wisdom holds that abrasive blasted steel cleaned to a near-white metal finish (NACE 2/SSPC- SP10) or better provides the optimum performance for coatings applied to the substrate. This is certainly true for inorganic silicate coatings such as zinc silicates where the silicic acid from the binder will covalently bond with metallic iron. For organic coatings, however, in particular epoxy-amine coatings, the mechanism of bonding with metallic iron, other than van der Waals forces, is not known, if it exists at all. On the other hand, the mechanism of epoxy-amine coatings binding
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Li, Haoyang, Yimin Zeng, Xue Han, Minkang Liu, and Chunbao (Charles) Xu. "Corrosion of Candidate Alloys in Supercritical Water Gasification (SCWG) Reactor under Batch-mode Operation." In CORROSION 2021. AMPP, 2021. https://doi.org/10.5006/c2021-16779.

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Abstract Supercritical Water Gasification (SCWG) is a promising thermochemical conversion technology in which supercritical water (SCW) is used as a conversion medium to gasify wet biomass feedstocks, such as raw forest biomass, black liquor, crude bio-oils and biowastes, into syngas (a mixture of CO and H2). Despite that considerable studies have been done on the development of SCWG technology, the optimum SCWG conversion conditions have not yet been well defined due to the complexity of raw feedstocks and conversion chemistry. From the corrosion perspective, few information is available to d
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Al-Khalaifah, Hanan. "HUMORAL IMMUNE RESPONSE OF HAEMOCYTES, RESPRESENTED BY NITRIC OXIDE AND PHENOL OXIDASE PRODUCTION." In 18th International Multidisciplinary Scientific GeoConference SGEM2018. Stef92 Technology, 2018. http://dx.doi.org/10.5593/sgem2018/6.2/s25.030.

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Rahman, Sheikh Tareq, Keshab K.Adhikary, and Philippe M. Heynderickx. "Gas phase hydroxylation of benzene to phenol by using CO2 as an oxidant over Cu-exchanged ZSM-5 catalysts." In 5th World Conference on Chemistry and Chemical Engineering and 5th World Conference on Advanced Materials, Nanoscience and Nanotechnology. Eurasia Conferences, 2024. https://doi.org/10.62422/978-81-970328-7-5-025.

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Direct hydroxylation of benzene is an assuring strategy to synthesize phenol. Formation of phenol was achieved under the continuous flow micro-reactor system by the concurrent feed of benzene and carbon dioxide over Cu loaded M+-ZSM-5 catalysts (M = Na+, Cs+, Mg2+ Ca2+ and Cr3+). The formation of phenol was observed (9.5% at 450 0C) in the temperature range of 4250C–5250C with a co-feed of CO2 (15 mL/min) and C6H6 (0.8 mL/min). When the catalyst was calcined at 450 0C, the activity peaked in the first hour and then slowly deactivated, but when the calcination temperature for the synthesized ca
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Kupryashina, M. A., and V. E. Nikitina. "INFLUENCE OF FERULIC ACID ON THE PRODUCTION OF PHENOL OXIDASE BY AZOSPIRILLA." In The All-Russian Scientific Conference with International Participation and Schools of Young Scientists "Mechanisms of resistance of plants and microorganisms to unfavorable environmental". SIPPB SB RAS, 2018. http://dx.doi.org/10.31255/978-5-94797-319-8-454-457.

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Reports on the topic "Phenol Oxidas"

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Steffens, John, Eithan Harel, and Alfred Mayer. Coding, Expression, Targeting, Import and Processing of Distinct Polyphenoloxidases in Tissues of Higher Plants. United States Department of Agriculture, 1994. http://dx.doi.org/10.32747/1994.7613008.bard.

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Polyphenol oxidase (PPO) catalyzes the oxidation of phenols to quinones at the expense of O2. PPOs are ubiquitous in higer plants, and their role in oxidative browning of plant tissues causes large annual losses to food production. Despite the importance of PPOs to agriculture, the function(s) of PPOs in higher plants are not understood. Among other roles, PPOs have been proposed to participate in aspects of chloroplast metabolism, based on their occurrence in plastids and high Km for O2. Due to the ability of PPO to catalyze formation of highly reactive quinones, PPOs have also been proposed
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Carpita, Nicholas C., Ruth Ben-Arie, and Amnon Lers. Pectin Cross-Linking Dynamics and Wall Softening during Fruit Ripening. United States Department of Agriculture, 2002. http://dx.doi.org/10.32747/2002.7585197.bard.

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Our study was designed to elucidate the chemical determinants of pectin cross-linking in developing fruits of apple and peach and to evaluate the role of breakage cross-linkages in swelling, softening, and cell separation during the ripening. Peaches cell walls soften and swell considerably during the ripening, whereas apples fruit cells maintain wall firmness but cells separate during late stages of ripening. We used a "double-reduction" technique to show that levels of non-methyl esters of polyuronic acid molecules were constant during the development and ripening and decreased only in overr
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