Results 111 to 120 of about 658,968 (311)

LABORATORIO DE SISTEMAS COLOIDALES Y CINÉTICA QUÍMICA - FACULTAD DE QUÍMICA

open access: yes, 2003
Programa de Aprendizaje de LABORATORIO DE SISTEMAS COLOIDALES Y CINÉTICA QUÍMICA de la Facultad de ...
QUÍMICA EN ALIMENTOS
core  

Annatto‐Derived Carotenoids (Bixin and Norbixin) As Biodiesel Antioxidants: Characterization and Effects on Oxidative Stability (Rancimat and PetroOXY)

open access: yesJournal of the American Oil Chemists' Society, EarlyView.
Annatto‐derived bixin and norbixin were characterized and evaluated as natural antioxidants for soybean biodiesel. Their antioxidant performance and effects on oxidative stability were assessed using DPPH, Rancimat, and PetroOXY methods. ABSTRACT The increasing use of eco‐friendly fuels is increasing the production of biodiesel but soybean biodiesel is
Marco Aurélio da Silva Coutinho   +4 more
wiley   +1 more source

Determinação do nível de lisina na fase inicial-I do crescimento de suínos, através da composição química e deposição de tecidos

open access: yesBoletim de Indústria Animal, 2013
Vinte leitões híbridos comerciais, machos castrados e fêmeas foram amostrados em um experimento de desempenho e abatidos para determinar o melhor nível de lisina sobre a composição química das frações corporais e taxas de deposição protéica e lipídica na carcaça e corpo vazio. Os níveis de lisina total foram 0,85; 0,95; 1,05; 1,15 e 1,25%
Messias Alves da Trindade Neto   +4 more
openaire   +5 more sources

Es el profesor de Química también profesor de Lengua

open access: yes, 2016
En este trabajo se analiza la importancia del lenguaje de la quimica en la construccion, la comunicacion y el aprendizaje de esta disciplina cientifica. Se resaltan algunas de las dificultades mas relevantes del lenguaje de la quimica.
J. Q. Pardo
semanticscholar   +1 more source

Liquid–Liquid Equilibrium Data for Refined Olive Pomace Oil + Oleic Acid + Ethanol + Water Systems: Application to Solvent Deacidification

open access: yesJournal of the American Oil Chemists' Society, EarlyView.
ABSTRACT This study presents the first experimental liquid–liquid equilibrium (LLE) data for quaternary systems composed of refined olive pomace oil, oleic acid, ethanol, and water at 303.15 K. These data are essential for the design and optimization of solvent‐based deacidification processes, particularly for oils with high free fatty acid (FFA ...
Jacqueline Mansano Ortega   +5 more
wiley   +1 more source

Características químicas do solo em pastagens de Brachiaria em sistema integrado lavoura-pecuária

open access: yesBoletim de Indústria Animal, 2013
O artigo não apresenta resumo em português.
Valdinei Tadeu Paulino   +3 more
openaire   +8 more sources

QUÍMICA ORGÁNICA HETEROALIFATICA Y BIOMOLÉCULAS - FACULTAD DE QUÍMICA

open access: yes, 2003
Programa de Aprendizaje de QUÍMICA ORGÁNICA HETEROALIFATICA Y BIOMOLÉCULAS de la Facultad de ...
QUÍMICA EN ALIMENTOS
core  

Development and Validation of a Cellulose‐Coated Stir Bar Sorptive Extraction Method for a Simple, Environmentally Friendly Approach to Measuring Free Glycerol in Biodiesel

open access: yesJournal of the American Oil Chemists' Society, EarlyView.
Preparation of a highly porous cellulose‐coated stir bar for the selective, environmentally friendly extraction of free glycerol from biodiesel using the SBSE method, followed by HPLC‐DAD analysis of the extract after derivatization with benzoyl chloride.
Caroline Lopes da Silva   +3 more
wiley   +1 more source

Conductive PMMA/rGO Microfibers via Solution Blow Spinning: Role of Fiber Architecture on Electrical Transport

open access: yesJournal of Applied Polymer Science, EarlyView.
A multidisciplinary characterization approach combining microscopy, tomography, spectroscopy, and electrical measurements reveals how fiber architecture and network connectivity govern electrical transport in PMMA/rGO microfibers by solution blow spinning.
Clarissa de Paula Dias   +8 more
wiley   +1 more source

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