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Littérature scientifique sur le sujet « MIBK »

Auteur : Grafiati
Publié le 11 septembre 2023

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Articles de revues sur le sujet "MIBK"

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Saito, Isao, Harumi Oshima, Norihisa Kawamura et Masuo Yamada. « Screening Method for Determination of High Levels of Cadmium, Lead, and Copper in Foods by Polarized Zeeman Atomic Absorption Spectrometry Using Discrete Nebulization Technique ». Journal of AOAC INTERNATIONAL 71, no 4 (1 juillet 1988) : 829–32. http://dx.doi.org/10.1093/jaoac/71.4.829.

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Abstract A screening method for determination of cadmium, lead, and copper in foods was developed. The sample (1-3 g) is digested with HN03- H2S04-HCI04 in a centrifuge tube attached to a straight glass tube that prevents loss of HN03 by volatilization. After digestion, potassium iodide, H2S04, and MIBK (4-methyl 2-pentanone) are added, and the metals are extracted with MIBK as metal iodides. The MIBK solution is injected and the metals are determined by flame polarized Zeeman atomic absorption spectrometry using a discrete nebulization technique. Recoveries of metals from fortified milk powder, unpolished rice, fish, beef, peanut butter, apple, and cabbage were satisfactory. The analytical results for NBS Oyster Tissue and NIES Pepperbush, Chlorella, and Mussel agreed with certified or reference values except lead in Pepperbush. The limits of quantitation for cadmium, lead, and copper were 0.01, 0.09, and 0.02 ppm, respectively. This method is simple and safe for routine analysis of high levels of cadmium, lead, and copper in foods.
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Hu, Yingjie, Yuxin Mei, Baining Lin, Xuhong Du, Fan Xu, Huasheng Xie, Kang Wang et Yonghua Zhou. « An active and stable multifunctional catalyst with defective UiO-66 as a support for Pd over the continuous catalytic conversion of acetone and hydrogen ». RSC Advances 11, no 1 (2021) : 48–56. http://dx.doi.org/10.1039/d0ra09217g.

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The one-pot synthesis of methyl isobutyl ketone (MIBK) and methyl isobutyl methanol (MIBC) from acetone and hydrogen is a typical cascade reaction comprised of aldol condensation-dehydration-hydrogenation.
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Yoon, Jung-Hwan, Yong-Geon Shin, Mary Beth Kirkham, Seok-Soon Jeong, Jong-Geon Lee, Hyuck-Soo Kim et Jae E. Yang. « A Simplified Method for Anionic Surfactant Analysis in Water Using a New Solvent ». Toxics 10, no 4 (29 mars 2022) : 162. http://dx.doi.org/10.3390/toxics10040162.

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Anionic surfactants (AS) are becoming a major emerging contaminant of waters due to their widespread use in household and industrial products. The standard chloroform method for analysis of AS in water relies on chloroform extraction of a methylene blue active substance (MBAS), which contains ion pairs between methylene blue (MB) molecules (positively charged) and AS. Due to the poor extractability of chloroform, the procedure is complicated, time-consuming, and subject to anionic interferences. A mixture of methyl isobutyl ketone (MIBK)–1,2-dichloroethane (DCE) at a 3:1 ratio of MIBK:DCE proved to be a robust solvent for AS extraction for a wide range of samples under various chemical conditions. The objectives of this research were to set the washing protocol to eliminate the anionic interferences in the MIBK-DCE extraction and to develop a new simplified analytical method for AS analysis using the MIBK-DCE (3:1) extractant. The suitability of the proposed MIBK-DCE method was validated based on quality control and assurance criteria, such as selectivity, accuracy, precision, method detection limit (MDL), limit of quantification (LOQ), and sensitivity. Various water samples, such as freshwater, wastewater, and seawater, were used for the method development and validation. Interferences by inorganic and organic anions were evident in the reference chloroform method but were eliminated in the MIBK-DCE procedure with a two-step process that consisted of washing with a carbonate/bicarbonate solution at pH 9.2 and a mixture of silver sulfate (Ag2SO4) and potassium alum (AlK(SO4)2). The simplified MIBK-DCE method for sodium dodecyl sulfate (SDS) analysis consisted of (i) sample pre-treatment, (ii) MIBK-DCE extraction, (iii) washing and filtration, and (iv) absorbance measurement. The MIBK-DCE method was accurate, precise, selective, and sensitive for AS analysis and showed MDL of 0.0001 mg/L, LOQ of 0.0005 mg/L, relative standard deviation (RSD) of 0.1%, and recovery of 99.0%. All these criteria were superior to those of the chloroform method. Sensitivity analysis showed highly significant correlations in AS analyses between the MIBK-DCE and chloroform methods for domestic wastewater, industrial wastewater, and seawater. The MIBK-DCE method is simple, rapid, robust, reproducible, and convenient, when compared to the chloroform method. Results demonstrate that the simplified MIBK-DCE method can be employed for AS analysis in a wide range of environmental waters including seawater.
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Al-Rabiah, Abdulrahman A., Raed R. Alkathiri et Abdulaziz A. Bagabas. « Process Development for Methyl Isobutyl Ketone Production Using the Low-Pressure One-Step Gas-Phase Selective Hydrogenation of Acetone ». Processes 10, no 10 (2 octobre 2022) : 1992. http://dx.doi.org/10.3390/pr10101992.

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Methyl isobutyl ketone (MIBK) is a highly valuable product in the chemical industry. It is widely used as an extracting agent for heavy metals, antibiotics, and lubricating oils. Generally, MIBK can be produced by three-step and one-step liquid-phase methods. These methods are expensive and energy-demanding due to the high pressure and low conversion of acetone. A novel nano-Pd/nano-ZnCr2O4 catalyst was developed to produce MIBK with high conversion and selectivity of 77.3% and 72.1%, respectively, at 350 °C and ambient pressure, eliminating the need for high pressure in conventional MIBK processes. This study is the first that proposes a newly developed process of methyl isobutyl ketone (MIBK) production using the low-pressure one-step gas-phase selective hydrogenation of acetone. In this work, a novel process flow diagram has been developed for the production of MIBK using the developed nano-catalyst. The process was heat integrated, resulting in a 26% and a 19.5% reduction in the heating and cooling utilities, respectively, leading to a 12.6% reduction in the total energy demand. An economic analysis was performed to determine the economic feasibility of the developed process, which shows that the process is highly profitable, in which it reduced both the capital and operating costs of MIBK synthesis and showed a return on investment (ROI) of 29.6% with a payback period of 2.2 years. It was found that the ROI could be increased by 18% when the reactor temperature is increased to 350 °C. In addition, the economic sensitivity analysis showed that the process is highly sensitive to product prices and least sensitive to utility prices, which is due to the versatility of the process that requires only a low amount of energy.
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Du, Chang Hai, Zhuo Min Yang, Guo Bin Zhao et Li Jie Zhu. « One-Step Synthesis of Methyl Isobutyl Ketone from Acetone Catalysed by Ni-Zirconia ». Advanced Materials Research 391-392 (décembre 2011) : 908–11. http://dx.doi.org/10.4028/www.scientific.net/amr.391-392.908.

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The one-step synthesis of methyl isobutyl ketone from acetone (MIBK) and H2 in liquid phase was studied over Ni-zirconia catalyst prepared by precipitation. The performances of Ni/ZrO2 catalysts were evaluated by the conversion of acetone and the selectivity of MIBK. The effect of different preparation conditions such as aging temperature, calcination temperature, nickel content and reduction temperature was investigated. The results showed that high acetone conversions of up to 33% and MIBK selectivities of up to 85% were recorded at a nickel content of 13.0 wt % and the reduction temperature of 400°C.
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Zelinková, Hana, Rostislav Červenka et Josef Komárek. « Stabilizing Agents for Calibration in the Determination of Mercury Using Solid Sampling Electrothermal Atomic Absorption Spectrometry ». Scientific World Journal 2012 (2012) : 1–7. http://dx.doi.org/10.1100/2012/439875.

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Tetramethylene dithiocarbamate (TMDTC), diethyldithiocarbamate (DEDTC), and thiourea were investigated as stabilizing agents for calibration purposes in the determination of mercury using solid sampling electrothermal atomic absorption spectrometry (SS-ETAAS). These agents were used for complexation of mercury in calibration solutions and its thermal stabilization in a solid sampling platform. The calibration solutions had the form of methyl isobutyl ketone (MIBK) extracts or MIBK-methanol solutions with the TMDTC and DEDTC chelates and aqueous solutions with thiourea complexes. The best results were obtained for MIBK-methanol solutions in the presence of2.5 g L-1TMDTC. The surface of graphite platforms for solid sampling was modified with palladium or rhenium by using electrodeposition from a drop of solutions. The Re modifier is preferable due to a higher lifetime of platform coating. A new SS-ETAAS procedure using the direct sampling of solid samples into a platform with an Re modified graphite surface and the calibration against MIBK-methanol solutions in the presence of TMDTC is proposed for the determination of mercury content in solid environmental samples, such as soil and plants.
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Das, Nigamananda. « Progress in One-Pot Synthesis of Methyl Isobutyl Ketone Using Multifunctional Layered Based Catalysts ». Key Engineering Materials 571 (juillet 2013) : 169–96. http://dx.doi.org/10.4028/www.scientific.net/kem.571.169.

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Methyl isobutyl ketone (MIBK) is one of the most widely produced and used aliphatic ketones worldwide. The one-step MIBK process with no intermediate separation steps using multifunctional catalysts is an important development towards greener organic synthesis and generates tremendous interest among the researcher across the globe. The single step process is facile and more economically viable and has provided opportunity to develop new and improved catalyst systems capable of operating under mild conditions. A widely variety of catalytic systems have been used in one-step process during last three to four decades. The progress in one-pot synthesis of MIBK using different multifunctional catalysts with special reference to layered based catalysts was critically reviewed in this article.
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Vézina, Manon, Adriane B. Kobusch, Patrick du Souich, Erminio Greselin et Gabriel L. Plaa. « Potentiation of chloroform-induced hepatotoxicity by methyl isobutyl ketone and two metabolites ». Canadian Journal of Physiology and Pharmacology 68, no 8 (1 août 1990) : 1055–61. http://dx.doi.org/10.1139/y90-159.

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The hepatonecrogenic properties of chloroform (CHCl3) can be modified by the administration of various chemicals. The ability of methyl isobutyl ketone (MIBK) and its two major metabolites, 4-methyl-2-pentanol (4MPOL) and 4-hydroxymethyl isobutyl ketone (4-OHMIBK) to potentiate the liver injury induced by CHCl3 was assessed in rats. The parent compound and both metabolites significantly increased the liver damage induced by CHCl3, as demonstrated by the elevation of the plasma activity of two transferases alanine aminotransferase and ornithine carbamoyl transferase and by the severity of the morphological changes. Moreover, the minimally effective dosage needed to potentiate CHCl3-induced hepatotoxicity was approximately 5 mmol/kg for the three compounds. We also studied the inducing properties of MIBK (cytochrome P-450 liver content and the activity of aniline hydroxylase, 7-ethoxycoumarin O-deethylase, and aminopyrine N-demethylase). Cytochrome P-450 content and the oxidation of aniline and 7-ethoxycoumarin were significantly increased with either a single (7.5 mmol/kg or greater) or a multiple (5.0 and 7.5 mmol∙kg−1∙day−1 for 5 days) administration of MIBK. An increase in the activity of the aminopyrine demethylase was also elicited by the repetitive administration of MIBK. With gel electrophoresis, we found that MIBK significantly increased the 52.1- and 54.1-kDa proteins, corresponding most probably to P-450 isozymes.Key words: methyl isobutyl ketone, methyl isobutyl ketone metabolites, CHCl3 hepatotoxicity, potentiation, enzyme induction.
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Mihajlovic, Randjel, Natasa Ignjatovic, Marija Todorovic, Ivanka Holclajtner-Antunovic et Vesna Kaljevic. « Spectrophotometric determination of phosphorus in coal and coal ash using bismuth-phosphomobybdate complex ». Journal of the Serbian Chemical Society 68, no 1 (2003) : 65–73. http://dx.doi.org/10.2298/jsc0301065m.

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A modified spectrophotometric method using the bismuth phosphomolybdate complex for the determination of phosphorus in coal and coal ash is suggested. Bismuth together with phosphate and molybdate forms a very stable complex in acid medium which turns blue ("molibdenum blue") by reduction with ascorbic acid. The apparent molar absorptivity of PBiMo is 1.66x104 dm3 mol-1cm-1 at 720 nm and 2.10x104 dm3 mol-1cm-1 at 670 nm isobutyl methyl ketone (MIBK). Interference caused by the ions present are within the tolerance limits (?2 %). Beer?s law is obeyed in the for concentration range to 0.6 ?g/mL (aqueous solution) and to 1.2 ?g/mL P (MIBK). The sensitivity of the proposed method is 0.0078 ?g/mL (aqueous solution) and 0.0066 ?g/mL (MIBK).
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Rivas, Sandra, Carlos Vila, Valentín Santos et Juan Carlos Parajó. « Furfural production from birch hemicelluloses by two-step processing : a potential technology for biorefineries ». Holzforschung 70, no 10 (1 octobre 2016) : 901–10. http://dx.doi.org/10.1515/hf-2015-0255.

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Abstract Birch samples were subjected to non-isothermal autohydrolysis to obtain a solution of hemicellulosic saccharides and a solid phase mainly made up of cellulose and lignin. Based on kinetic modeling, operational conditions were identified which give rise to soluble saccharides and furfural derived from xylan in a yield of 80.5%. The soluble mixture was supplemented with 1% sulfuric acid and heated (directly or in the presence of methyl isobutyl ketone, MIBK) for furfural production. MIBK is used as an extraction agent to limit furfural consumption by side reactions. Operating in single phase at 170°C, up to 44.8% of the potential substrates were converted into furfural. In experiments performed in biphasic media, the effects of MIBK were assessed by empirical modeling and about 75% of the potential substrates were converted under selected conditions.
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Thèses sur le sujet "MIBK"

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ZARPELON, LIA M. C. « Contribuicao ao estudo da separacao zirconio/hafnio no sistema MIBK-HSCN-HCL ». reponame:Repositório Institucional do IPEN, 1995. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10423.

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Dissertacao (Mestrado)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
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Waters, Gerrit. « Single Stage Aldol Condensation and Hydrogenation of Acetone to MIBK in the Gas Phase ». [S.l. : s.n.], 2007. http://digbib.ubka.uni-karlsruhe.de/volltexte/1000007395.

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Rizzo, Ricardo Buono. « Tratamento oxidadtivo e redutivo de efluentes industriais visando a destruição de Percloroetileno (PCE) e Metil Isobutil Cetona (MIBK) ». [s.n.], 2005. http://repositorio.unicamp.br/jspui/handle/REPOSIP/249655.

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Orientador: Wilson F. Jardim
Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Quimica
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Resumo: Neste trabalho foi estudada a eliminação dos solventes Percloroetileno (PCE) e Metil Isobutil Cetona (MIBK), em efluentes líquidos de uma planta industrial. A análise pelo período de 4 meses, mostrou valores médios de 17.565 mg/L de PCE e 41.340 mg/L de MIBK. Como tratamento inicial, foi avaliada a eficiência de um POA empregando o reagente de Fenton (H2O2 e Fe). No teste inicial com uma solução sintética a 5000 mg/L, de PCE, foi obtida uma destruição superior a 99% dentro de um período de 6 horas, empregando uma concentração de 1000 mg/L de H2O2 a 60% (m/m), sendo que a reação apresentou uma cinética de 1 ordem (k = 1,94 x 10 s). Para amostras do efluente, foram obtidas eficiências de destruição variáveis com as concentrações iniciais e dosagens aplicadas dos reagentes. Empregando dosagens de H2O2 : Fe (9000 mg/L : 900 mg/L), para uma amostra contendo 10.546 mg/L de PCE e 6.704 mg/L de MIBK, foram obtidas eficiências de remoção superiores a 99,9%, dentro de períodos de 3 horas de tratamento, com cinéticas variáveis entre 1 ordem e 2 ordem. A otimização dos reagentes demonstrou a necessidade de aplicar dosagem correta para obter a destruição total do PCE e MIBK. Com relação ao pH, foi observado que o ajuste para pH 3,0 promoveu um aumento da eficiência da destruição, contra o teste em pH 2,0. Para a maior dosagem de reagentes, observou-se um aumento de 6% na destruição. Paralelamente foi avaliada a eficiência da eliminação do PCE pelo processo de descloração redutiva por Ferro Zero Valente, com remoções de até 89,4%, e a geração do subproduto tricloroetileno. Finalmente, como proposta de trabalho foi estudada a combinação do processo redutivo (Ferro Zero Valente) e oxidativo (Fenton) como uma alternativa para a maximização da eficiência de tratamento e minimização de custos, visto que possibilita a destruição completa tanto do PCE quanto do MIBK dentro do período de 2 horas de tratamento, eliminando ainda a necessidade da adição de ferro.
Abstract: This work is about the removal of Perchloroethylene (PCE) and MethylIsobutyl Ketone (MIBK) in a liquid effluent from an industrial plant. A 4-month analysis has shown average levels of 17,565 mg/L of PCE and 41,340 mg/L of MIBK. Initially, the AOP using Fenton's reagent (H2O2 and Fe) was evaluated. First, a synthetic solution containing 5,000 mg L of PCE was tested and reached elimination greater than 99% within 6 hours of treatment, using a concentration of 1,000 mg/L of H2O2 at 60% (w/w). In this test, a 1 order kinetics (k = 1,94 x 10-4 s-1) was observed. For wastewater samples, using dosages of H2O2 : Fe (9000 mg L:mg L), an elimination destruction above 99,9% was obtained within 3 hours of treatment, for a sample containing 10,546 mg L of PCE and 6,704 mg L of MIBK. Data showed variations between 1st and 2nd order kinetics. Optimization of reactant dosage showed that it is necessary to apply the right dosage to get total elimination of PCE and MIBK. Regarding pH, it was observed that adjustment to pH 3 always gives better results than pH 2. For the greatest dosage of chemicals, an improvement of 6% in the destruction was observed. Simultaneously, a PCE elimination by reductive dechlorination using Zero Valent Iron with removal efficiencies up to 89.4% and generation of trichloroethylene as a by-product was evaluated. Finally, a combination of Oxidative (Fenton) and Reductive (Zero Valent Iron) processes was proposed as an alternative to improve the treatment efficiency and reduce costs. The application of this treatment made it possible to reach complete removal of both contaminants within 2 hours of treatment, besides allowing the elimination of the iron added.
Mestrado
Quimica Analitica
Mestre em Química
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Fazzini, Francesco. « Catalizzatori polifunzionali per la sintesi di Metil Isobutil Chetone ». Master's thesis, Alma Mater Studiorum - Università di Bologna, 2016. http://amslaurea.unibo.it/11867/.

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In this work, we have examined the activity and selectivity of new catalysts for the single-stage production of methyl isobutyl ketone (MIBK, 4- methyl-2-pentanone) from acetone (both in liquid and gas phase), using a fixed bed reactor operated in the temperature range between 373 and 473 K. The main reaction pathways for the synthesis of MIBK from acetone are given in Fig.1. The first step is the self condensation of acetone to diacetone alcohol (DAA, 4-hydroxy-4-methyl-2-pentanone); the second step is the dehydration of DAA to mesityl oxide (MO, 4-methyl-3-penten-2-one); the final step is the selective hydrogenation of the carbon–carbon double bond of MO to form MIBK. The most commonly observed side reactions are over-condensations and unselective hydrogenations (also shown in Fig.1). Two types of catalysts were studied: i)Pd supported on MgO-SiO2 mixed oxides with ratio of Mg to Si, synthetized using Ohnishi’s method and ii)Pd supported on alumina doped with 5% or 10% of MgO. The different Mg-Si and Mg-Al catalysts were characterized by different techniques (XRD, BET, SEM, NH3-TPD and CO2-TPD) and tested under different conditions in the condensation of acetone to diacetone alcohol and its dehydration to mesityl oxide to enhance the activity. Palladium was chosen as metal component, and its hydrogenation activity was studied. A low hydrogenation activity negatively affects the acetone conversion and promotes the production of mesityl oxide. Hydrogenation conditions being too severe may favor the unwanted hydrogenation of acetone to 2-propanol and of MIBK to methyl isobutyl carbinol (MIBC, 4-methyl-2-pentanol) but this effect is less detrimental to the MIBK selectivity than an unsufficient hydrogenation activity.
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Querengässer, Julia. « Studies on milk flow, milk yield and milk quality from teats with milk flow disorders / ». [S.l.] : [s.n.], 2002. http://www.stub.unibe.ch/html/haupt/datenbanken/diss/bestell.html.

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Thörnqvist, Linnea. « A conversation on milk : Exploring Swedish milk history on Arla's milk panels ». Thesis, Uppsala universitet, Institutionen för arkeologi och antik historia, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-356161.

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Sweden is one of the heaviest milk consuming countries in the world. The milk- and dairy ‘giant’ Arla, is the largest distributing company of milk- and dairy in Sweden. Since, 1975 Arla began to use the back of their own milk packages as a channel for advertisement, facts, and information. These milk panels have since, been distributed to generations of Swedes. In this thesis I explore the conversations Arla have been mediating through these panels and further how historical and contemporary debates have influenced and altered the conversations conveyed. Inspired by social semiotic theory, I approach the panels to analyse how language and societal debates changes have shaped discourses on the panels, but also how the panel's comments on and reshapes societal debates. The study has been confined study to five years, 1976, 1986, 1996, 2006 and 2016. In order to retrieve and analyse the empirical material I used discourse analysis (or as I prefer to call conversation analysis). The theoretical framework builds on ideas of modernisation using three key theories, Social semiotics, propaganda theory and also theories on nationalism. In the empirical findings of my study, I have distinguished key conversations which I think represent the material as well as societal and contemporary debates. The material shows that Arla on the on hand continue on a tradition of milk marketing in terms of subjects and themes appearing on the panels. On the other hand, Arla is also constantly reinventing themselves in their marketing adjusting to the debates and trends in society.
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McConaghy, Elizabeth Cundiff. « Milk winter ». Diss., St. Louis, Mo. : University of Missouri--St. Louis, 2010. http://etd.umsl.edu/r5183.

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Warren, Kelly D. « Spilled milk ». Honors in the Major Thesis, University of Central Florida, 2001. http://digital.library.ucf.edu/cdm/ref/collection/ETH/id/309.

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This item is only available in print in the UCF Libraries. If this is your Honors Thesis, you can help us make it available online for use by researchers around the world by following the instructions on the distribution consent form at http://library.ucf.edu/Systems/DigitalInitiatives/DigitalCollections/InternetDistributionConsentAgreementForm.pdf You may also contact the project coordinator, Kerri Bottorff, at kerri.bottorff@ucf.edu for more information.
Bachelors
Arts and Sciences
English
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Hongu, Nobuko, Martha I. Mosqueda et Jamie M. Wise. « Milk Matters ! » College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2009. http://hdl.handle.net/10150/146672.

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3 pp.
Why Milk? Facts about Fat in Milk
Milk contains 9 essential nutrients, making it one of the most nutrient-rich beverages that both children and adults can enjoy. We recommend consuming 3 cups per day of fat-free (skim), low-fat (1% or 2%), or equivalent milk products for healthy adults and children 2 years of age and older. We have illustrated the amount of total fat and saturated fat in 1 cup of milk. A delicious and easy recipe for rice pudding using skim milk is also included.
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Marschke, Ronald James. « Milk enzymes as diagnostic indicators of milk secretory disorders ». Thesis, Queensland University of Technology, 1987. https://eprints.qut.edu.au/36796/1/36796_Marschke_1987.pdf.

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Studies were carried out on two enzymes of bovine milk, N-acetyl-8-D-glucosaminidase (NAGase) and lactate dehydrogenase (LDH), which are indicators of the udder disease mastitis. The main objective of this study was to determine the origins of NAGase and LDH in milk. The approach used was to examine the differences in multiple forms of the enzymes in mammary gland, blood leucocytes and blood plasma by various separation procedures. The molecular weight forms of NAGase in mammary gland and polymorphonuclear leucocytes showed pH-dependent association-dissociation behaviour on gel filtration, but this property was not apparent for blood plasma NAGase. Improved differentiation of NAGases was achieved by ion exchange chromatography at pH 7.0. This method was used to estimate the contributions from the individual sources t6 the total NAGase activity in milk. Mammary gland was the major source of NAGase in normal and mastitic milk. There was a significant contribution from leucocytes in mastitic milk but the contribution from blood plasma was low. The distributions of LDH isoenzymes were examined by polyacrylamide gel electrophoresis. Similar patterns for PMN leucocytes and blood plasma precluded the use of iso­enzyme separations for differentiating between LDH enzymes from these two sources. The predominance of the LDH-1 isoenzyme in normal milk indicated that LDH originated from mammary tissue in the healthy udder. In mastitic milk, LDH contributions from all sources were apparent. During these studies, assay procedures for the determination of LDH in milk were developed and a color­metric kit test assessed as a field procedure for testing quarter milks. Positive test results with the kit were unreliable, particularly for freshly-collected milk. Improved diagnostic efficien¢y was achieved using a spectrophotometric assay for LDH. Application of the NAGase and LDH tests to the diagnosis of mastitis in goat's milk showed that changes in milk enzyme levels with minor pathogen infections were insufficient to allow discrimination between uninfect­ed and infected halves.
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Livres sur le sujet "MIBK"

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Commission of the European Communities. Directorate-General for Agriculture., dir. Milk & milk products. [Brussels] : DG VI Documentation Centre, 1985.

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Food and Agriculture Organization of the United Nations., dir. Milk and milk products. Rome : Food and Agriculture Organization of the United Nations, 2007.

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Varnam, Alan H., et Jane P. Sutherland. Milk and Milk Products. Boston, MA : Springer US, 1994. http://dx.doi.org/10.1007/978-1-4615-1813-6.

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Varnam, Alan H., et Jane P. Sutherland. Milk and Milk Products. Boston, MA : Springer US, 1994. http://dx.doi.org/10.1007/978-1-4615-2798-5.

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Food and Agriculture Organization of the United Nations., dir. Milk and milk products. Rome : Food and Agriculture Organization of the United Nations, 2007.

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Commission of the European Communities. Directorate-General for Agriculture., dir. Milk and milk products. Luxembourg : Office for Official Publications of the European Communities, 1996.

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Food and Agriculture Organization of the United Nations., dir. Milk and milk products. Rome : Food and Agriculture Organization of the United Nations, 2007.

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O'Connor, Charles B. Milk processing techniques : Sour milk. Addis Ababa : ILCA, 1992.

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Grant, Mick. Mick Grant : Takin' the mick. Sparkford, Yeovil, Somerset : Haynes, 2010.

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Tachikawa, Megumi. Mink. Hamburg : Tokyopop, 2004.

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Chapitres de livres sur le sujet "MIBK"

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Bährle-Rapp, Marina. « MIBK ». Dans Springer Lexikon Kosmetik und Körperpflege, 354. Berlin, Heidelberg : Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-71095-0_6574.

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Gooch, Jan W. « MIBK ». Dans Encyclopedic Dictionary of Polymers, 461. New York, NY : Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_7461.

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Braks, G. J. M. « Opening Address ». Dans Milk, 1–3. Dordrecht : Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-017-5571-9_1.

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Daly, Charles. « Starters : Application in the Dairy ». Dans Milk, 95–103. Dordrecht : Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-017-5571-9_10.

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Odet, G. « Quality Control and Quality Assurance of Processing a Product at Different Locations ». Dans Milk, 879–85. Dordrecht : Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-017-5571-9_100.

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Duke, A. M. « Quality Assurance and Image in Relation to the Consumer ». Dans Milk, 887–94. Dordrecht : Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-017-5571-9_101.

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Atkinson, D. W. « British Food Marks ». Dans Milk, 895–99. Dordrecht : Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-017-5571-9_102.

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Kirkpatrick, K. J. « Australian & ; New Zealand Quality Marks ». Dans Milk, 901–5. Dordrecht : Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-017-5571-9_103.

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van der Bas, J. M. « Scandinavian and Dutch Quality Marks ». Dans Milk, 907–9. Dordrecht : Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-017-5571-9_104.

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Mann, E. « Synopsis of the Congress ». Dans Milk, 913–16. Dordrecht : Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-017-5571-9_106.

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Actes de conférences sur le sujet "MIBK"

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Niazi, Saber, Miguel Ignacio Parma-García, Jos´e Antonio Díaz-L´opez et Antonio Nieto-M´arquez. « Batch Distillation of Water/MIBK Heteroazeotropic Mixture ; Evaluation and Optimization of Process ». Dans 15th Mediterranean Congress of Chemical Engineering (MeCCE-15). Grupo Pacífico, 2023. http://dx.doi.org/10.48158/mecce-15.t4-p-29.

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Mihaylov, G., et K. Kirollos. « 371. Comparison Between the Performance of Passive Organic Vapor Monitors (OVMS) and Charcoal Tubes for Ethylene Dibromide, Isoamyl Acetate, Isoamyl Alcohol, Mibk, Methyl Chloroform, and 1,3-Butadiene ». Dans AIHce 2000. AIHA, 2000. http://dx.doi.org/10.3320/1.2763722.

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Jia, Lili Lily, Louise Brough et Janet L. Weber. « Effect of Saccharomyces cerevisiae Yeast-Based Supplement on Human Milk Oligosaccharide Concentration and Mothers’ Perception of Breast Milk Supply : A Randomized Placebo-Controlled Trial ». Dans More Than Milk Lactation Science Symposium. Basel Switzerland : MDPI, 2023. http://dx.doi.org/10.3390/proceedings2023084016.

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Suwaydi, Majed A., Ching Tat Lai, Alethea Rea, Mary E. Wlodek et Donna T. Geddes. « Circadian Variation of Human Milk Hormones and Macronutrients : Implications for Sampling and Analysis Strategies ». Dans More Than Milk Lactation Science Symposium. Basel Switzerland : MDPI, 2023. http://dx.doi.org/10.3390/proceedings2023084015.

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McEachran, Jacki L., Zoya Gridneva, Ching-Tat Lai, Lisa F. Stinson, Sharon L. Perrella et Donna T. Geddes. « Statement of Peer Review ». Dans More Than Milk Lactation Science Symposium. Basel Switzerland : MDPI, 2023. http://dx.doi.org/10.3390/proceedings2023084001.

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Stinson, Lisa F., Jie Ma et Donna T. Geddes. « Recolonization of Pasteurized Donor Milk with Mother’s Own Microbiome ». Dans More Than Milk Lactation Science Symposium. Basel Switzerland : MDPI, 2023. http://dx.doi.org/10.3390/proceedings2023084003.

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Ward, Ellen, Ni Yang, Beverly S. Muhlhausler, Gabriela E. Leghi, Merryn J. Netting, Matthew J. Elmes et Simon C. Langley-Evans. « Changes to Breast Milk Composition following Increased Maternal Sugar and Fat Consumption ». Dans More Than Milk Lactation Science Symposium. Basel Switzerland : MDPI, 2023. http://dx.doi.org/10.3390/proceedings2023084007.

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Bode, Lars. « COVID-19 and Human Milk : Are We Prepared for the Next Pandemic ? » Dans More Than Milk Lactation Science Symposium. Basel Switzerland : MDPI, 2023. http://dx.doi.org/10.3390/proceedings2023084008.

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Gridneva, Zoya, Isabella Norrish, Azhar Sindi, Vanessa S. Sakalidis, Mya Thway Tint, Sharon L. Perrella, Mark P. Nicol et Donna T. Geddes. « Effect of Human Milk Components on Infant Growth and Body Composition ». Dans More Than Milk Lactation Science Symposium. Basel Switzerland : MDPI, 2023. http://dx.doi.org/10.3390/proceedings2023084004.

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Ma, Jie, Debra J. Palmer, Ching Tat Lai, Donna T. Geddes et Lisa F. Stinson. « Human Milk Microbial Profiles from Allergic Women and Early Childhood Allergy Outcomes ». Dans More Than Milk Lactation Science Symposium. Basel Switzerland : MDPI, 2023. http://dx.doi.org/10.3390/proceedings2023084002.

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Rapports d'organisations sur le sujet "MIBK"

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Reynolds, J. K. Reassignment of experimental MIBs to standard MIBs. RFC Editor, juin 1991. http://dx.doi.org/10.17487/rfc1239.

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Bobe, Gerd, A. E. Gene Freeman, Gary L. Lindberg et Donald C. Beitz. Milk Protein Genotypes Explain Variation of Milk Protein Composition. Ames (Iowa) : Iowa State University, janvier 2004. http://dx.doi.org/10.31274/ans_air-180814-614.

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St., M., et M. Rose. Identification MIB. RFC Editor, février 1993. http://dx.doi.org/10.17487/rfc1414.

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Smith, R., F. Wright, T. Hastings, S. Zilles et J. Gyllenskog. Printer MIB. RFC Editor, mars 1995. http://dx.doi.org/10.17487/rfc1759.

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Kavasseri, R., dir. Event MIB. RFC Editor, octobre 2000. http://dx.doi.org/10.17487/rfc2981.

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Beck, D., R. Darwin, A. Erickson et R. Eckert. Milk cow feed intake and milk production and distribution estimates for Phase 1. Office of Scientific and Technical Information (OSTI), avril 1992. http://dx.doi.org/10.2172/5375779.

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Rose, M. T., et K. McCloghrie. Concise MIB definitions. RFC Editor, mars 1991. http://dx.doi.org/10.17487/rfc1212.

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Grillo, P., et S. Waldbusser. Host Resources MIB. RFC Editor, septembre 1993. http://dx.doi.org/10.17487/rfc1514.

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Kille, S., et N. Freed. Mail Monitoring MIB. RFC Editor, janvier 1994. http://dx.doi.org/10.17487/rfc1566.

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Freed, N., et S. Kille. Mail Monitoring MIB. RFC Editor, janvier 1998. http://dx.doi.org/10.17487/rfc2249.

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