Glycerol
Mostrando 13-24 de 2879 artigos, teses e dissertações.
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13. Catalytic Dehydration of Glycerol to Acrolein over Aluminum Phosphate Catalysts
Gas phase conversion of glycerol to acrolein over a variety of aluminum phosphate (AlP) catalysts synthesized by a simple replacement reaction method with a variation in calcination temperature (300-700 ºC, AlP-300, AlP-400, AlP-500, AlP-600, and AlP-700, respectively) has been investigated. The textural properties, acidities and coke contents of the sample
J. Braz. Chem. Soc.. Publicado em: 2020-08
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14. Expeditious Syntheses to Pharmochemicals 1,3-Dihydroxyacetone, 1,3-Dichloro-, 1,3-Dibromo- and 1,3-Diiodoacetone from Glycerol 1,3-Dichlorohydrin Using Homogenous and Heterogenous Medium
New efficient and reproductive routes to production of 1,3-dihydroxyacetone (1), 1,3-dichloroacetone (6), 1,3-dibromoacetone (7) and 1,3-diiodoacetone (8) from glycerol 1,3-dichlorohydrin (3) were developed. The synthesis of 1 was processed in three steps from glycerol 2 (1,3-selective chlorination of 2 to 3, oxidation of 3 to 6 and subsequent di-hydroxylati
J. Braz. Chem. Soc.. Publicado em: 2020-08
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15. The Role of Vaccinium Myrtillus in the Prevention of Renal Injury in an Experimental Model of Ruptured Abdominal Aortic Aneurysm
Abstract Objective: To examine the biochemical and histopathological renal effects of ischemia/reperfusion (I/R) injury using a ruptured abdominal aortic aneurysm (RAAA) model in rats and to investigate the potential protective effects of whortleberry (Vaccinium myrtillus). Methods: Thirty-two male Sprague-Dawley rats were randomly assigned into four group
Braz. J. Cardiovasc. Surg.. Publicado em: 2020-08
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16. Seria a Revascularização Completa Verdadeiramente Superior à ICP apenas da Lesão Culpada em Pacientes que Apresentam Infarto Agudo do Miocárdio com Supradesnivelamento do Segmento ST?
Abstract Objective: To examine the biochemical and histopathological renal effects of ischemia/reperfusion (I/R) injury using a ruptured abdominal aortic aneurysm (RAAA) model in rats and to investigate the potential protective effects of whortleberry (Vaccinium myrtillus). Methods: Thirty-two male Sprague-Dawley rats were randomly assigned into four group
Arq. Bras. Cardiol.. Publicado em: 2020-08
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17. Tea Grape Reduces Abdominal Aortic Occlusion-Induced Lung Injury
Abstract Introduction: Ischemia-associated mortality caused by aortic cross-clamps, as in ruptured abdominal aorta aneurysm surgeries, and reperfusion following their removal represent some of the main emergency conditions in cardiovascular surgery. The purpose of our study was to examine the potential protective effect of tea grape against aortic occlusion
Braz. J. Cardiovasc. Surg.. Publicado em: 2020-08
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18. PERSPECTIVAS DE MERCADO E DESAFIOS DA PRODUÇÃO DO ÁCIDO ITACÔNICO A PARTIR DE BIOMASSA
Itaconic acid (IA) is a very promising platform molecule due to the possibility of it being used to obtain products such as methyl methacrylate and synthetic latex, with the prospect that its global market will grow at an average annual rate of 2.8% (CAGR) from 2021 to 2026, exceeding US$ 116.6 million in sales. The main technological route used to obtain it
Quím. Nova. Publicado em: 20/07/2020
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19. Avocado oil as an inducer of the extracellular lipase activity of Kluyveromyces marxianus L-2029
Abstract Avocado represents one of the most nutritious and consumed foods in Mexico, and its export generates significant profits; because of its fatty acids content, the avocado oil was used as an inducer for the synthesis of extracellular lipases from the non-conventional yeast Kluyveromyces marxianus L-2029. Lipases are able to catalyze acyl glycerides, h
Food Sci. Technol. Publicado em: 2020-06
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20. Stability of refrigerated whole blood samples for osmotic fragility test
ABSTRACT Background: The osmotic fragility test (OFT), conventionally used for assisting the diagnosis of many erythrocyte disorders, is a manual and time-consuming analysis not daily performed in many medical laboratories. This study was aimed at defining the stability of whole blood samples used for assessing erythrocyte osmotic resistance. Methods: Twen
Hematol., Transfus. Cell Ther.. Publicado em: 2020-06
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21. Primary melanoma of leptomeninge in a patient with giant congenital melanocytic nevus,
ABSTRACT Background: The osmotic fragility test (OFT), conventionally used for assisting the diagnosis of many erythrocyte disorders, is a manual and time-consuming analysis not daily performed in many medical laboratories. This study was aimed at defining the stability of whole blood samples used for assessing erythrocyte osmotic resistance. Methods: Twen
An. Bras. Dermatol.. Publicado em: 2020-06
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22. Regenerated Cellulose Membrane from Peanut Shell for Biodiesel Purification
Biodiesel purification by water washing has been proved to be an unattractive process from an economic and environmental point of view. In this work, we propose the use of regenerated cellulose membranes from peanut shell as an alternative in the biodiesel purification. The preparation of the membranes was optimized from a central composite design, resulting
J. Braz. Chem. Soc.. Publicado em: 2020-05
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23. Synthesis of Glycerol-Derived 4-Alkyl-Substituted 1,2,3-Triazoles and Evaluation of Their Fungicidal, Phytotoxic, and Antiproliferative Activities
Herein, the synthesis of nine novel glycerol-derived 4-alkyl-substituted 1,2,3-triazoles, using the CuI-catalyzed alkyne-azide cycloaddition reaction as the key step, is reported. The triazoles were characterized by infrared and nuclear magnetic resonance (NMR 1H and 13C) spectroscopy and mass spectrometry. The nine prepared compounds were evaluated with reg
J. Braz. Chem. Soc.. Publicado em: 2020-04
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24. Optimization and release evaluation for tea polyphenols and chitosan composite films with regulation of glycerol and Tween
Abstract In order to optimize the performance of chitosan-tea polyphenols composite films, effects of glycerol and Tween on the antioxidative activities and physical performance of chitosan composite films were evaluated. The results indicated that both flexibility and water vapour permeability of chitosan/tea polyphenols films were improved with the additio
Food Sci. Technol. Publicado em: 2020-03