Log in

Relevant bibliographies by topics / Mechanism of alkaline hydrolysis / Dissertations / Theses

To see the other types of publications on this topic, follow the link: Mechanism of alkaline hydrolysis.

Dissertations / Theses on the topic 'Mechanism of alkaline hydrolysis'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'Mechanism of alkaline hydrolysis.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Said, M. S. "Hydrolysis mechanisms for iminosulphonate esters and fluorene esters." Thesis, University of Essex, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.353160.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

VanEngelen, Catherine Elizabeth. "Alkaline hydrolysis of explosives." Diss., Montana State University, 2010. http://etd.lib.montana.edu/etd/2010/vanengelen/VanEngelenC0510.pdf.

Full text

Abstract:

In the United States, ammunitions testing and manufacturing facilities must transform unused explosives into non-hazardous materials for disposal. 2,4,6- trinitrotoluene (TNT) is an explosive that has been found as a soil and groundwater contaminant at numerous ammunitions testing sites. Unused quantities of nitrocellulose (NC), another explosive, have also been accumulating at ammunitions manufacturing facilities. Transformation of both TNT and NC to non-explosive compounds has been studied using either chemical or biological approaches, each with limited success. With respect to TNT, the use

APA, Harvard, Vancouver, ISO, and other styles

3

VanEngelen, Catherine Elizabeth. "Alkaline hydrolysis of explosives." Thesis, Montana State University, 2009. http://etd.lib.montana.edu/etd/2009/vanengelen/VanengelenC1209.pdf.

Full text

Abstract:

In the United States, ammunitions testing and manufacturing facilities must transform unused explosives into non-hazardous materials for disposal. 2,4,6- trinitrotoluene (TNT) is an explosive that has been found as a soil and groundwater contaminant at numerous ammunitions testing sites. Unused quantities of nitrocellulose (NC), another explosive, have also been accumulating at ammunitions manufacturing facilities. Transformation of both TNT and NC to non-explosive compounds has been studied using either chemical or biological approaches, each with limited success. With respect to TNT, the use

APA, Harvard, Vancouver, ISO, and other styles

4

González, González Jorge Augusto. "MIDA boronate hydrolysis." Thesis, University of Edinburgh, 2017. http://hdl.handle.net/1842/23461.

Full text

Abstract:

The application of MIDA boronates (MIDA = N-methyliminodiacetic acid) in Suzuki- Miyaura reactions has increased over the last years. This is mainly because in many cases, the replacement of the boronic acid for the respective MIDA boronate has a positive result in the reaction yield. The key feature that makes MIDA boronates efficient coupling partners is that they can undergo a slow hydrolysis reaction under Suzuki-Miyaura conditions, which generates the boronic acid in situ. The control of the hydrolysis rate is crucial to keep a low concentration of the boronic acid to avoid some of the si

APA, Harvard, Vancouver, ISO, and other styles

5

Hall, Darren James. "Simple mechanism-based inhibitors of glycoside hydrolysis." Thesis, University of East Anglia, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.390654.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Mirshokraie, S. Ahmad (Seyed Ahmad). "Reactions of a-substituted non-phenolic lignin model compounds under alkaline hydrolysis conditions." Thesis, McGill University, 1988. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=75783.

Full text

Abstract:

Side-chain ether groups in lignin model compounds of the general structure 1-(3$ sp prime$,4$ sp prime$-dimethoxyphenyl)-1,2-diaryloxyethane exhibited hydrolytic cleavage (the extent depending on the substituents on the 1-aryloxy groups) in aqueous 2N NaOH at 150$ sp circ$C (i.e. under wood pulping conditions). The level of hydrolysis increased in phenylpropane models (i.e. with $ gamma$-CH$ sb2$OH). Thus the commonly accepted generalization that 1,2-diethers of 3$ sp prime$,4$ sp prime$-dimethyoxyphenylpropane are stable in hot alkali is valid only for 1-alkoxy compounds. The newly observed h

APA, Harvard, Vancouver, ISO, and other styles

7

Odoch, Martin. "Hydrolysis of cassava cell walls through alkaline treatment and fermentation with alkaliphilic bacteria." Thesis, University of Pretoria, 2017. http://hdl.handle.net/2263/65933.

Full text

Abstract:

Efficient processing of cassava roots by wet milling requires overcoming challenges associated with disaggregation of the starch-containing parenchyma cells. These cells entrap starch granules and hinder their release during wet milling. Steeping of ground cassava in 0.75% (w/v) NaOH in combination with wet milling was investigated to determine whether and how dilute NaOH modifies cassava cell walls. Gas chromatography (GC) data of cell wall constituent sugar composition and Fourier transform infrared (FTIR) data showed that NaOH steeping caused solubilisation of the cell wall pectin fraction.

APA, Harvard, Vancouver, ISO, and other styles

8

Peroza, Meza Carlos Arturo. "Factors affecting the alkaline hydrolysis of carbaryl in the presence of cationic surfactants." Diss., University of Iowa, 2016. https://ir.uiowa.edu/etd/6248.

Full text

Abstract:

Alkaline degradation of Carbaryl in the presence of CTAB micelles has been reported as the most efficient method; however, the factors accounting for it are not yet clear. The main objective of this work was to study some of the factors affecting the alkaline degradation of Carbaryl in the presence of cetyl trimethylammonium bromide (CTAB). Three specific aims were researched in order to address the main objective. Solubility studies, UV-vis, fluorescence, and 1D-HNMR and 2D-HNMR spectroscopies were used to research the solubilization of carbaryl in CTAB micelles. Solubility studies showed tha

APA, Harvard, Vancouver, ISO, and other styles

9

Gupta, Rajesh Lee Yoon Y. "Alkaline pretreatment of biomass for ethanol production and understanding the factors influencing the cellulose hydrolysis." Auburn, Ala, 2008. http://repo.lib.auburn.edu/EtdRoot/2008/SPRING/Chemical_Engineering/Dissertation/Gupta_Rajesh_7.pdf.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Aubert, Sarah Dwyer. "Mechanism for the hydrolysis of organophosphates and investigations into the stereoselective hydrolysis of organophosphorus Esters by Phosphotriesterase." Texas A&M University, 2004. http://hdl.handle.net/1969.1/3308.

Full text

Abstract:

Phosphotriesterase (PTE) is a zinc metalloenzyme that catalyzes the hydrolysis of organophosphorus compounds. Metal ion roles during binding and catalysis are probed by comparing the kinetic properties of Zn/Zn, Cd/Cd, and Zn/Cd PTE with a variety of phosphate trisesters. The metal in the α-site of the binuclear metal center modulates the pKa values determined from pH-rate profiles. These results suggest that the α-metal is responsible for activating the nucleophilic hydroxide. In an effort to determine the function of the β-metal, the kinetic parameters for diethyl p-chloro

APA, Harvard, Vancouver, ISO, and other styles

11

Desai, Salil Dileep. "Ortho substitution effects on the acidic and alkaline hydrolyses of formanilides." Diss., University of Iowa, 2009. https://ir.uiowa.edu/etd/353.

Full text

Abstract:

The objectives of this project were to determine the reaction schemes of formanilide and substituted formanilides in acidic and alkaline solutions, to quantiate the kinetics of hydrolysis, to propose reaction mechanisms, and to assess the role of ortho words substitution in formanilide hydrolysis kinetics. A set of thirty substituted formanilides were synthesized and characterized. Hydrolysis of the formanilides was carried out under first order conditions in hydrochloric acid (0.01-8 M, 40°C) and in hydroxide solutions (0.01-3 M, 25°C and 40°C). Hydrolysis kinetics were evaluated in terms of

APA, Harvard, Vancouver, ISO, and other styles

12

Babtie, Ann Catherine. "Exploring catalytic promiscuity and mechanism in the alkaline phosphatase superfamily." Thesis, University of Cambridge, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.608750.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Samp, James Christian. "A comprehensive mechanism for anthraquinone mass transfer in alkaline pulping." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/24767.

Full text

Abstract:

Thesis (Ph.D.)--Chemical Engineering, Georgia Institute of Technology, 2008.<br>Committee Chair: Dr. Jeff Empie; Committee Member: Dr. Bill Koros; Committee Member: Dr. Jim Frederick; Committee Member: Dr. Tom McDonough; Committee Member: Dr. Xin-Sheng Chai

APA, Harvard, Vancouver, ISO, and other styles

14

Patel, Jagvi Ramesh. "Kinetics and mechanism of hydrolysis and proton transfer reactions in solution." Thesis, King's College London (University of London), 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.271412.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Schwarzl, Sonja M. "Understanding the ATP hydrolysis mechanism in myosin using computer simulation techniques." [S.l. : s.n.], 2005. http://nbn-resolving.de/urn:nbn:de:bsz:16-opus-63890.

Full text

Abstract:

Heidelberg, Univ., Diss., 2005.<br>Aus: S.M. Schwarzl, Understanding the ATP hydrolysis mechanism in myosin using computer simulation techniques, Mensch und Buch Verlag Berlin 2006, ISBN 3-86664-044-7.

APA, Harvard, Vancouver, ISO, and other styles

16

Jones, Christopher Buchan. "The hydrolysis of cirazoline and the mechanism of stabilization by SDDS." Thesis, University of Bath, 1988. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.380945.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Shaw, Sudipta. "Role of ATP Hydrolysis and Mechanism of Substrate Reduction in Nitrogenase." DigitalCommons@USU, 2017. https://digitalcommons.usu.edu/etd/5729.

Full text

Abstract:

Nitrogenase consists of two metalloproteins, the MoFe protein and the Fe protein. The MoFe protein is an α2β2 heterotetramer and the Fe protein is an α2 homodimer. The catalytic cycle of nitrogenase involves binding of the Fe protein to each αβ catalytic half of the MoFe protein, electron transfer followed by ATP hydrolysis, Pi release and eventually dissociation of the two proteins. This cycle has to be repeated eight consecutive times to reduce one molecule of N2. The two catalytic halves of the MoFe protein had been considered to be independent of each other. The research presented here sho

APA, Harvard, Vancouver, ISO, and other styles

18

McCarthy, William R. "An investigation of the mechanism of alkaline sizing with alkenyl succinic anhydride." Diss., Georgia Institute of Technology, 1987. http://hdl.handle.net/1853/5666.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Soares, Rodrigues Carla Ines. "EVALUATION OF DIFFERENT SOURCES OF HYDROXYL ON BIOMASS PRETREATMENT AND HYDROLYSIS." UKnowledge, 2015. http://uknowledge.uky.edu/bae_etds/28.

Full text

Abstract:

Lignocellulosic biomass pretreatment is a fundamental step in the production of renewable fuels and chemicals. It is responsible for the disruption and removal of lignin and hemicellulose from the lignocellulosic matrix, improving the enzymatic hydrolysis of cellulose. Alkaline pretreatment has been shown to be successful on agricultural residues and dedicated energy crops. The objective of this study was to evaluate the pretreatment of switchgrass, wheat straw, corn stover, and miscanthus using calcium hydroxide, potassium hydroxide, and sodium hydroxide at the same hydroxyl concentration, 60

APA, Harvard, Vancouver, ISO, and other styles

20

Vinnakota, Keerthi. "Chemical Recycling of Poly (Ethylene Terephthalate) and its Co-polyesters with 2, 5-Furandicarboxylic Acid using Alkaline Hydrolysis." University of Toledo / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1535106967389994.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Mills, Judith Frances. "Kinetics and mechanism of the hydrolysis of benzoxazines and their ring opened derivatives." Thesis, King's College London (University of London), 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.267701.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Björquist, Stina. "Separation for regeneration : Chemical recycling of cotton and polyester textiles." Thesis, Högskolan i Borås, Akademin för textil, teknik och ekonomi, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-12388.

Full text

Abstract:

In 2015, 96.7 million tonnes of textile fibres were produced world-wide. Our high consumption of textiles leads to an increased amount of textile waste. In Sweden, the majority of used clothing and textiles are incinerated due to the lack of recycling techniques. A large amount of post-consumer textile waste is made from blended materials. One of the most common blends, used in as near as all workwear and service textiles, is cotton/polyester. To enable chemical recycling of such textiles, cotton and polyester must first be separated. The aim of this thesis was to separate the materials by dep

APA, Harvard, Vancouver, ISO, and other styles

23

Beukes, Natasha. "Effect of alkaline pre-treatments on the synergistic enzymatic hydrolysis of sugarcane (Saccharum officinarum) bagasse by Clostridium cellulovorans XynA, ManA and ArfA." Thesis, Rhodes University, 2011. http://hdl.handle.net/10962/d1004011.

Full text

Abstract:

The continual increase in industrialization and global population has increased the dependency and demand on traditional fossil fuels for energy; however, there are limited amounts of fossil fuels available. The slow depletion of fossil fuels has sparked a fresh interest in renewable sources such as lignocellulose to produce a variety of biofuels, such as biogases (e.g. methane), bioethanol, biodiesel and a variety of other solvents and economically valuable by-products. Agricultural crop wastes produced in surplus are typically lignocellulosic in composition and thus partially recalcitrant to

APA, Harvard, Vancouver, ISO, and other styles

24

Ramopoulos, Vasileios [Verfasser], and J. [Akademischer Betreuer] Jelonnek. "Energy-efficient, scalable and modular industrial microwave applicator for high temperature alkaline hydrolysis of PET / Vasileios Ramopoulos ; Betreuer: J. Jelonnek." Karlsruhe : KIT-Bibliothek, 2021. http://d-nb.info/1227451032/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Zalatan, Jesse George. "Structural and functional comparisons in the alkaline phosphatase superfamily : implications for mechanism and evolution /." May be available electronically:, 2008. http://proquest.umi.com/login?COPT=REJTPTU1MTUmSU5UPTAmVkVSPTI=&clientId=12498.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Hui, Ka-long Aaron, and 許家朗. "Structural analysis of Zn-Zn distance in NDM-1's beta-lactam hydrolysis mechanism." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2014. http://hdl.handle.net/10722/206564.

Full text

Abstract:

Introduction: The New Delhi metallo-β-lactamase (NDM-1) is an enzyme synthesized by bacterium which hydrolyses β-lactam antibiotics and inhibits their antibiotic effects. Its active site is highly diverse and the hydrolysis mechanism is not yet fully understood. So, there is currently no clinically useful inhibitor for this enzyme. Due to this β-lactam resistant characteristics and the ease of horizontal gene transfer between bacteria, NDM-1 producing bacteria poses a great threat to public health. Objective: Structural analysis on Zn-Zn distance in the active site of NDM-1 was carried out

APA, Harvard, Vancouver, ISO, and other styles

27

Balasubramanian, Krithika. "ATP hydrolysis in Rho: Identifying active site residues and their roles." Diss., Temple University Libraries, 2010. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/80319.

Full text

Abstract:

Biochemistry<br>Ph.D.<br>Escherichia coli transcription termination factor Rho is a hexameric RNA/DNA helicase that terminates transcription using energy derived from the hydrolysis of ATP. The ATP binding sites of Rho are located at the interfaces of adjoining subunit Cterminal domains and have the Walker A and B motifs, characteristic of many ATPases (Skordalakes & Berger, 2003; Richardson 2002). Available Rho crystal structures capture the protein with its active site in an open configuration that must close to permit ATP hydrolysis. Because of this, the identities of active site residues p

APA, Harvard, Vancouver, ISO, and other styles

28

Tull, Dedreia L. "An investigation of the mechanism of the Cellulomonas fimi exoglucanase." Thesis, University of British Columbia, 1991. http://hdl.handle.net/2429/30402.

Full text

Abstract:

The exoglucanase from Cellulomonas fimi catalyses the hydrolysis of cellobiose units from the non-reducing terminus of cello-oligosaccharides with overall retention of anomeric configuration. Its mechanism of action is therefore thought to involve a double displacement reaction, involving as the first step, formation of a glycosyl-enzyme intermediate (glycosylation) and as a second step, the hydrolysis of this intermediate (deglycosylation). This mechanism is investigated here through the study of the kinetics of hydrolysis of aryl β-glucosides and aryl β-cellobiosides and by employing the mec

APA, Harvard, Vancouver, ISO, and other styles

29

Buss, Joan L. "Mechanism of hydrolysis-activation of the cardioprotective antioxidant dexrazoxane and identification of more effective analogs by development of a quantitative structure-activity relationship describing imide hydrolysis." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp02/NQ31967.pdf.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Koblasová, Dana. "Extrakce arabinoxylanů z pšeničných otrub." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2021. http://www.nusl.cz/ntk/nusl-449739.

Full text

Abstract:

This diploma thesis is focused on the use of wheat bran as a raw material for extraction of arabinoxylans. Wheat bran is a waste product of mill processing of wheat into flour and is mainly used as a livestock feed. However, the amount of bran produced significantly exceeds its consumption as feed, which opens up space for research into their further use. Polysaccharides such as cellulose, hemicelluloses and lignin are mainly present in the bran. The most common type of hemicelluloses are arabinoxylans, which form the main structural component of wheat bran. Alkaline extraction disrupts hydrog

APA, Harvard, Vancouver, ISO, and other styles

31

Yip, Vivian Ling Yee. "Mechanistic investigation of family 4 glycosidases : a novel redox-elimination mechanism in the hydrolysis of glycosides." Thesis, University of British Columbia, 2007. http://hdl.handle.net/2429/31761.

Full text

Abstract:

The chemical mechanisms of glycoside hydrolases, which catalyze the hydrolysis of glycosidic linkages, are some of the most extensively studied amongst enzymatic reactions. Decades of research have led to the widespread acceptance of the two general glycosidase mechanisms--both involving nucleophilic displacement steps and oxocarbenium ion-like transition states--first proposed by Koshland in 1953. Glycoside hydrolase family 4 is an anomaly within this large class of enzymes. Not only does this family uniquely contain both α- and β-glycosidases, but members of family 4 also require both a diva

APA, Harvard, Vancouver, ISO, and other styles

32

Pinheiro, Benedita Andrade. "Novel insight into the mechanism of cellulosome assembly and plant cell wall hydrolysis in anaerobic bacteria." Doctoral thesis, Universidade Técnica de Lisboa. Faculdade de Medicina Veterinária, 2010. http://hdl.handle.net/10400.5/1742.

Full text

Abstract:

Tese de Doutoramento em Ciência e Tecnologia Animal<br>Cellulosomes are one of nature’s most elaborate and highly efficient nanomachines. These cell bound multi-enzyme complexes orchestrate the deconstruction of cellulose and hemicellulose, two of the most abundant polymers on earth, thus playing a major role in carbon turnover. Integration of cellulosomal components occurs via highly ordered protein:protein interactions between cohesins and dockerins, whose specificities allow the precise incorporation of cellulases and hemicellulases onto a molecular scaffold. Clostridium thermocellum a

APA, Harvard, Vancouver, ISO, and other styles

33

Fukunishi, Yoshifumi. "Teoretical Model Study on the Surface-Adsorbate Reaction, GaAs Crystal Growth,and Hydrolysis Mechanism in Protein." Kyoto University, 1994. http://hdl.handle.net/2433/168890.

Full text

Abstract:

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(工学)<br>甲第5710号<br>工博第1356号<br>新制||工||947(附属図書館)<br>UT51-94-J142<br>京都大学大学院工学研究科合成化学専攻<br>(主査)教授中辻博, 教授生越久靖, 教授山邊時雄<br>学位規則第4条第1項該当

APA, Harvard, Vancouver, ISO, and other styles

34

Evans, Steven John. "Structure, function and mechanism of action of bovine pancreatic deoxyribonuclease I : role of amino acid residues involved in phosphate contacts." Thesis, University of Newcastle Upon Tyne, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.321857.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Chasse, Kevin Robert. "A study on the mechanism of stress corrosion cracking of duplex stainless steel in hot alkaline-sulfide solution." Diss., Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/42793.

Full text

Abstract:

Corrosion and stress corrosion cracking of structural components cost an estimated $300 billion annually in the United States alone and are a safety concern for a number of industries using hot alkaline environments. These process environments may contain different amounts of sulfide and chloride; however, the combined role of these ions on the stress corrosion cracking of duplex stainless steels, which are widely used because of their generally reliable performance, had never been studied. This study shows that chlorides in sulfide-containing caustic environments actually have a significant i

APA, Harvard, Vancouver, ISO, and other styles

36

Kane, Steven Daniel. "Degradation of cellulosic material by Cellulomonas fimi." Thesis, University of Edinburgh, 2015. http://hdl.handle.net/1842/10049.

Full text

Abstract:

The world stocks of fossil fuels are dwindling and may be all but out before the end of the century. Despite this there is increasing demand for them to be used for transport, and the ever increasing green house gases which their use produces. Renewable and less environmentally damaging forms of fuel are needed. Biofuels, particularly bioethanol, are a possibility to subsidise or replace fossil fuels altogether. Ethanol produced from fermentation of starch sugars from corn are already in wide use. As this bioethanol is currently produced from crops such as corn and sugar cane, that puts fuel c

APA, Harvard, Vancouver, ISO, and other styles

37

Correia, Jessyca Aline da Costa. "Estudo do prÃ-tratamento do bagaÃo de caju com perÃxido de hidrogÃnio alcalino para a produÃÃo de etanol." Universidade Federal do CearÃ, 2013. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=9772.

Full text

Abstract:

CoordenaÃÃo de AperfeiÃoamento de Pessoal de NÃvel Superior<br>O prÃ-tratamento do bagaÃo de caju (BC) com perÃxido de hidrogÃnio alcalino (PHA) e a hidrÃlise enzimÃtica do BC-PHA foram avaliados visando a conversÃo de celulose e hemicelulose em aÃucares fermentescÃveis. Primeiramente foram avaliados os efeitos da concentraÃÃo de perÃxido de hidrogÃnio a pH 11,5, a carga de biomassa e o tempo do prÃ-tratamento a 35 ÂC e 250 rpm, na hidrÃlise enzimÃtica, da biomassa prÃ-tratada, com celulase comercial a uma carga de 11,4 FPU/gcelulose. O BC utilizado neste estudo continha 20,56 Â 20,19% de celu

APA, Harvard, Vancouver, ISO, and other styles

38

Powers, Leigh Gayle. "Practical applications of plasmids : overexpression of a bacterial alkaline phosphatase as a mechanism for heavy metal and radionuclide sequestration." Thesis, Georgia Institute of Technology, 2000. http://hdl.handle.net/1853/25306.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Arrowsmith, Merle. "Intramolecular hydroamination of aminoalkenes with group 2 precatalysts : mechanistic insights and ligand design." Thesis, University of Bath, 2011. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.538274.

Full text

Abstract:

Long relegated to the background by the pre-eminence of magnesium-based, stoichiometric Grignard reagents, a distinct chemistry of the heavier alkaline earth metals, calcium, strontium and barium, is only now starting to emerge. As similarities have been drawn between the large, electropositive, redox-inert and d0 alkaline earth Ae2+ dications and the Ln3+ cations of the lanthanide series, a growing group 2-mediated catalytic chemistry has developed over the last decade, including polymerisation reactions, heterofunctionalisation reactions of multiple bonds and some rare examples of dehydrocou

APA, Harvard, Vancouver, ISO, and other styles

40

Zeraatkar, Dehnavi Gholamali. "Fractionation of the main components of barley spent grains from a microbrewery." Thesis, Högskolan i Borås, Institutionen Ingenjörshögskolan, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-19581.

Full text

Abstract:

Barley spent grain, the main residue of the brewing industry, is a lignocellulosic material, which could be considered a potential raw material for ethanol production. In this work, spent grains generated in a microbrewery were fractionated by acid hydrolysis and delignification. The investigated sort of barley spent grains had high carbohydrate content, accounting for 60% of the dry matter, while its lignin content was lower than that reported for other sorts of spent grains. Since the used spent grains contained residual starch different treatment approaches were used for separating their ma

APA, Harvard, Vancouver, ISO, and other styles

41

Luna, Ysa Helena Diniz Morais de. "Caracterização e solubilização de lodo anaeróbio provenientes de reatores de baixo tempo de retenção celular." Universidade Estadual da Paraíba, 2017. http://tede.bc.uepb.edu.br/jspui/handle/tede/2876.

Full text

Abstract:

Submitted by Jean Medeiros (jeanletras@uepb.edu.br) on 2017-11-13T13:30:12Z No. of bitstreams: 1 PDF - Ysa Helena Diniz Morais de Luna.pdf: 14969298 bytes, checksum: 0533a4f938f12c09a36b687414201b77 (MD5)<br>Made available in DSpace on 2017-11-13T13:30:12Z (GMT). No. of bitstreams: 1 PDF - Ysa Helena Diniz Morais de Luna.pdf: 14969298 bytes, checksum: 0533a4f938f12c09a36b687414201b77 (MD5) Previous issue date: 2017-04-11<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico - CNPq<br>The biological sludge approprieate treatment must be developed in order to take advantages of the

APA, Harvard, Vancouver, ISO, and other styles

42

Frederice, Rafael. "Fluorescência molecular em nanopartículas de sílica marcadas com quercetina e rodamina B." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/75/75131/tde-25082009-163731/.

Full text

Abstract:

Nanoesferas de sílica contendo fluoróforos encapsulados (o complexo quercetina- Al+3 e o corante rodamina B) foram preparadas com alto controle de tamanho e morfologia, utilizando catálise ácida e básica do tetraetilortossilicato (TEOS). As nanopartículas obtidas apresentaram diâmetro da ordem de 200-300 nm, possuindo maior regularidade quando preparadas em meio alcalino. Nas preparações foram utilizados o método de Stöber e o método caroço-casca. Devido à hidrólise da quercetina em meio básico, as partículas funcionalizadas com o flavonóide ou com o complexo quercetina-Al+3, apresentaram maio

APA, Harvard, Vancouver, ISO, and other styles

43

Binar, Radim. "Vliv hydrolýzy na chemické a fyzikální vlastnosti PAN hydrogelů." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2018. http://www.nusl.cz/ntk/nusl-401451.

Full text

Abstract:

Předložená diplomová práce se zabývá přípravou hydrogelů odvozených od polyakrylonitrilu a charakterizací jejich fyzikálních a chemických vlastností. Teoretická část shrnuje základní poznatky z oblasti hydrogelů, a také o polyakrylonitrilu. Dále se zabývá možností zpracování polyakrylonitrilu do reaktivní formy, takzvaného aquagelu a jeho zásadité hydrolýzy za účelem přípravy multi-blokových kopolymerů schopných tvořit 3D síť (gel). Experimentální část prezentuje výsledky charakterizace hydrogelů z polyakrylonitrilu neboli HYPANů, které byly připraveny bazicky katalyzovanou hydrolýzou aquagelu

APA, Harvard, Vancouver, ISO, and other styles

44

Lin, Xi. "The Kinetic and Mechanism of The Oxygen Reduction Reaction on Pt, Au, Cu, PtCu/C and CuAu/C in Alkaline Media." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1471874766.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

van, Rijn Jeannette [Verfasser]. "Computational studies of enzymatic reactions: Elucidating the Taxadiene Synthase mechanism and the CalB-catalyzed hydrolysis of propranolol esters / Jeannette van Rijn." Düsseldorf : Universitäts- und Landesbibliothek der Heinrich-Heine-Universität Düsseldorf, 2021. http://d-nb.info/1237883784/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

46

Amorim, Adriany das GraÃas Nascimento. "Efeito do grupo racial e do mÃtodo de metilaÃÃo sobre o perfil de Ãcidos graxos da carne caprina do nordeste brasileiro." Universidade Federal do CearÃ, 2005. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=7942.

Full text

Abstract:

Conselho Nacional de Desenvolvimento CientÃfico e TecnolÃgico<br>A pesquisa foi desenvolvida no LaboratÃrio de Carnes do Departamento de Tecnologia de Alimentos e no LaboratÃrio de Cromatografia do Departamento de QuÃmica AnalÃtica e FÃsico-QuÃmica da Universidade Federal do CearÃ. Esse trabalho objetivou comparar a composiÃÃo de Ãcidos graxos da carne caprina proveniente de animais de dois cruzamentos entre os grupos raciais BÃer x SRD e Anglo Nubiana x SRD caracterÃsticos do nordeste brasileiro, utilizando-se a metilaÃÃo por hidrÃlise Ãcida ou alcalina para a preparaÃÃo das amostras. No expe

APA, Harvard, Vancouver, ISO, and other styles

47

Svalberg, Linn. "Determining the Reaction Mechanism of Hydrolysis of p-Nitrophenyl Butyrate Performed by a Cold-Adapted Lipase, BplA : Finding the Rate-Limiting Step." Thesis, Uppsala universitet, Beräkningsbiologi och bioinformatik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-446666.

Full text

Abstract:

Lipases are one of the most important biocatalysts for biotechnological applications. They have high importance since lipases have a catalytic activity that is related to their hydrolysis and synthesis reactions to high regioselectivity and enantioselectivity. They also have an activity over a wide range of temperature, pH, and diverse substrates. The aim of this master thesis project was to apply computational calculations to understand the reaction mechanism of the hydrolysis of p-nitrophenyl butyrate performed by the cold-adapted lipase, Bacillus pumilus Lipase A (BplA). Cold-adapted lipase

APA, Harvard, Vancouver, ISO, and other styles

48

Freitas, Milena Maria de Meneses. "ObtenÃÃo de Ãlcoois de cadeia longa a partir da Cera de CarnaÃba." Universidade Federal do CearÃ, 2011. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=6683.

Full text

Abstract:

CoordenaÃÃo de AperfeiÃoamento de Pessoal de NÃvel Superior<br>As ceras naturais, como a carnaÃba, sÃo misturas complexas de Ãsteres compostos de Ãcidos graxos e alcoÃis de cadeia longa. ObtÃm-se a cera de carnaÃba pelo pÃ cerÃfero depositado na superfÃcie das folhas da palmeira Copernicia sp, popularmente conhecida como carnaubeira. O objetivo deste trabalho foi estudar a produÃÃo de Ãlcoois de cadeia longa a partir da cera de carnaÃba bruta utilizando diferentes mÃtodos de hidrÃlise alcalina. Amostras de cera de carnaÃba filtrada e refinada de cor amarela (tipo I) foram hidrolisadas por trÃs

APA, Harvard, Vancouver, ISO, and other styles

49

Thys, Roberta Cruz Silveira. "Caracterização e avaliação de amido nativo e modificado de pinhão mediante provas funcionais e térmicas." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2009. http://hdl.handle.net/10183/18598.

Full text

Abstract:

O pinhão é a semente comestível da Araucaria angustifolia, sendo consumido no sul e sudeste do Brasil principalmente na sua forma in natura. A falta de diversidade em relação ao seu consumo acarreta a sobra da safra e a sua utilização como ração animal, o que diminui o valor de comercialização do produto, prejudicando os ganhos econômicos do produto. A semente do pinhão é composta de 34% de amido e um conteúdo muito baixo de proteínas e lipídios, o que a torna favorável para a obtenção de amido, aditivo amplamente utilizado pela indústria de alimentos. O objetivo deste trabalho foi caracteriza

APA, Harvard, Vancouver, ISO, and other styles

50

Chang, Hyun-Shik. "Determination of oxidation mechanism of ethylenediaminetetraacetate (EDTA)-metal complexes by alkaline permanganate and structures of in situ formed manganese oxides containing heavy metals /." Thesis, Connect to this title online; UW restricted, 2007. http://hdl.handle.net/1773/10106.

Full text

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!