Lauric Acid
Mostrando 13-24 de 92 artigos, teses e dissertações.
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13. Produção de lipases de Aspergillus niger e Aspergillus fumigatus através de fermentação em estado sólido, avaliação da especificidade do substrato e seu uso em reações de esterificação e alcoólise: evaluation of substrate specificity and use in esterification and alcoholysis reactions
Filamentous fungi were cultured under solid state fermentation of soybean residues to produce lipases. Enzymes produced by Aspergillus niger esterified oleic and butyric acids in the presence of ethanol, while enzymes produced by Aspergillus fumigatus demonstrated no esterification activity toward lauric acid. In case of A. niger, direct lyophilization of fe
Quím. Nova. Publicado em: 2014-06
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14. Potencial nutricional da amêndoa e da polpa da guarirova, Syagrus oleracea (Mart.) Becc.
The aim of this study was to evaluate the nutritional potential of the fruit, antinutritional factors and in vitro digestibility of proteins of the pulp and kernel guarirova (Syagrus oleracea (Mart.) Becc.). Regarding lipids, we performed physicochemical characterization of oils, fatty acid composition and index of nutritional quality. For nutritional assess
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 11/05/2012
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15. Layered metal laurates as active catalysts in the methyl/ethyl esterification reactions of lauric acid
No presente trabalho são reportadas as sínteses, caracterizações e investigações das atividades catalíticas de lauratos lamelares de cobre(II), manganês(II), lantânio(III) e níquel(II) nas reações de esterificação metílica e etílica do ácido láurico. Nas reações de esterificação metílica, conversões entre 80 e 90% foram observadas par
Journal of the Brazilian Chemical Society. Publicado em: 2012-01
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16. Montmorilonita modificada como catalisador heterogêneo em reações de esterificação (m)etílica de ácido láurico
ABSTRACT Montmorillonite was modified with zirconium polyoxycations in the presence of ammonium sulphate. The material was characterized and used as a catalyst in the esterification of lauric acid, the reactions being accompanied by 2³ factorial design. Conversions of up to 95.33 and 83.35% were observed for the methyl and ethyl esterification reactions res
Quím. Nova. Publicado em: 2012
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17. Perfil de ácidos graxos, propriedades nutricionais e estabilidade oxidativa de manteigas do leite de vacas alimentadas com cana-de-açúcar suplementada com óleo de girassol
The objective of this study was to evaluate the profile of fatty acids (FA), the nutritive quality and the oxidative stability (OE) of butter made with milk from cows fed with sugar cane 0 (T0); 1.5 (T1.5); 3.0(T3.0) and 4.5% (T4.5) of sunflower oil (SO). A randomized 4 x 4 Latin Square (LS) design was used, each period consisting of 10 days of cows diet ada
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/09/2011
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18. Biochemical composition of seven species of cyanobacteria isolated from different aquatic habitats of Western Ghats, Southern India
The aim of this work was to study the biochemical constituents of seven species of cyanobacteria namely, Calothrix fusca, Gloeocapsa livida, Lyngbya limnetica and Scytonema bohneri isolated from Panekal sulfur spring. The species namely, Oscillatoria acuminata from petrochemical refinery, O. calcuttensis from dairy effluent and O. foreaui from a sewage drain
Brazilian Archives of Biology and Technology. Publicado em: 2011-10
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19. FEEDING FINISHING PIGS WITH DIETS CONTAINING RACTOPAMINE AND CITRUS EXTRACTS: PERFORMANCE, CHARACTERISTICS OF CARCASS, MEAT AND SALAMI / ALIMENTAÇÃO DE SUÍNOS EM TERMINAÇÃO COM DIETAS CONTENDO RACTOPAMINA E EXTRATOS CÍTRICOS: DESEMPENHO, CARACTERÍSTICAS DE CARCAÇA, DA CARNE E PRODUTO CURADO
This study evaluated the effects of addition of ractopamine and citrus extracts in the diets of finishing pigs on performance, characteristics of carcass, meat and cured product. Hundred eight pigs were used (54 males and 54 females) in a completely randomized design, blocked by sex with nine treatments: T1 - control (C) (0 ppm of ractopamine e 0 ppm of citr
Publicado em: 2010
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20. Enzymatic route selection for monoglyceride production using immobilized lipase on matrix obtained by sol-gel technique / Estratégias para desenvolvimento de um sistema operacional eficiente para a produção enzimática de monoglicerídeos
The objective of this project was to select the best enzymatic route to produce monoglycerides using lipase immobilized on matrix obtained by sol-gel technique, aiming to contribute for a better utilization of the glycerol generated as by-product in the biodiesel synthesis. For this purpose two methodologies were analyzed: (1) direct esterification of the gl
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/11/2009
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21. Alternativa potencial para aproveitamento do glicerol gerado na produção de biodiesel: síntese enzimática de monolaurina por esterificação
Esterification reactions of glycerol with lauric acid in solvent free system were carried out using lipases from several sources. All lipases were immobilized on polysiloxane-polyvinyl alcohol particles by covalent binding with high activity recovered. Among the tested enzymes, the Candida antarctica lipase allowed to attain the highest molar conversion (76%
Química Nova. Publicado em: 2009
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22. Isolamento de bactéria produtoras de polihidroxialcanoatos de cadeia curta e média a partir de óleos vegetais / Isolation of bactéria producing polyhydroxyalkanoates containing short-chain-length and medium-chain-length monomers from plant oils
O potencial de bactérias em produzir polihidroxialcanoatos (PHA) a partir de óleo de soja foi avaliado com ênfase em Aeromonas spp. Dez isolados apresentando características de Aeromonas spp. (colônias amarelas em GSP agar e produção de P3HB-co-3HHx) e perfis ARDRA similares foram obtidos. Dois isolados produzindo PHAMCL foram também obtidos e experi
Publicado em: 2009
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23. CARACTERIZAÇÃO, POR ESPECTROMETRIA DE MASSAS, DOS MICROPOLUENTES PRESENTES NO ESGOTO BRUTO E NOS EFLUENTES DE UM SISTEMA DE TRATAMENTO COMBINADO ANAERÓBIO-AERÓBIO
Pharmaceuticals and personal care products arrive at wastewater treatment plants after disposal, where arent completely degraded. There are only a few Brazilian studies which look for those organic micropolutants on the domestic sewage, as well as their removal in effluent treatment systems. This work developed an analytical methodology in order to identify
Publicado em: 2008
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24. Efeitos biológicos de nanopartículas magnéticas recobertas por bicamada de ácido láurico : estudos in vitro e in vivo
Nanomaterials, due to its unique physical properties, are promising agents for biomedical use. Magnetic nanoparticles (MNP) covered with double layer of lauric acid (LA-MNP) were tested had their cytotoxicity evaluated in vitro mesangial cells (CHMI), fibroblasts (FHN) and peritoneal macrophages, showing decrease in cell viability only in macrophages, when t
Publicado em: 2008