Sucrose Hydrolysis
Mostrando 1-12 de 159 artigos, teses e dissertações.
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1. Characterization Of A Novel Hydrolytic Enzyme Producing Thermophilic Bacterium Isolated From The Hot Spring Of Azad Kashmir-Pakistan
ABSTRACT A thermophilic bacterium (TP-2) was isolated from the Tatta Pani hot spring in Azad Kashmir and was characterized using phenotypic and genotypic characters. The strain developed cream colored, round, smooth, flat and slimy colonies while the cells were Gram positive rods that ranged in size from about 2.1-3.6 μm to 0.2-0.3 μm in width. Sequence an
Braz. arch. biol. technol.. Publicado em: 28/07/2016
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2. Double mutation of Saccharomyces cerevisiae for enhanced β-D-fructofuranosidase fructohydrolase productivity and application of growth kinetics for parametric significance analysis
Abstract The kinetics of an extracellular β-D-fructofuranosidase fructohydrolase production by Saccharomyces cerevisiae in a chemically defined medium, i.e., sucrose peptone agar yeast extract at pH 6, was investigated. The wild-type was treated with a chemical mutagen, methyl methane sulfonate. Among the six mutants isolated, methyl methane sulfonate-V was
Braz. J. Microbiol.. Publicado em: 2016-03
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3. Sucrose hydrolysis by invertase using a membrane reactor: effect of membrane cut-off on enzyme performance
A hidrólise da sacarose através da invertase [EC.3.2.1.26] gera xarope de açúcar invertido, que é usado principalmente como ingrediente na indústria alimentícia. Para ter-se uma hidrólise satisfatória, a enzima deve ser reaproveitada após a reação. É desejável que sua atividade seja mantida constante durante um período considerável de reaçã
Braz. J. Pharm. Sci.. Publicado em: 2014-04
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4. Imobilização de α-galactosidase de Aspergillus niger em resina de troca iônica Duolite A-568
Immobilized enzymes provide many advantages when compared to the usage of their free forms. Among these ones, remarkable advantages are the possibility of the biocatalyst reusability, easy separation at the end of the process, its usage in continuous way and the enhancement of its stability. This work was performed aiming the immobilization of the α-gal
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/07/2012
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5. Hidrólise de Sacarose por Invertase Imobilizada em Duolite A-568 por Adsorção e Ligação Cruzada
Neste trabalho estudou-se a hidrólise de sacarose por invertase de Saccharomyces cerevisiae imobilizada por adsorção iônica em resina de troca iônica Doulite A-568 seguida pelo processo de ligação cruzada com uso de glutaraldeído. Esta combinação de processos de imobilização levou a um aumento da atividade e estabilidade da enzima invertase. O in
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/07/2012
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6. Aperfeiçoamento da fermentação de sacarose através da modificação da expressão dos genes SUC2 e AGT1 em linhagens diploides de Saccharomyces cerevisiae. / Improvement of sucrose fermentation by modifying the expression of SUC2 and AGT1 genes in diploid Saccharomyces cerevisiae strains.
Currently, the S. cerevisiae strains used in industrial production of fuel alcohol in Brazil are diploid yeasts that of metabolize sucrose through its extracellular hydrolysis by the periplasmic invertase, followed by the transport of the formed glucose and fructose into the cells, and further metabolism through glycolysis. In this study, utilizing genetic e
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/03/2012
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7. Inverted sugar syrup attained from sucrose hydrolysis using a membrane reactor
Invertase, na forma adsorvida ou não em copolímeros de estireno-divinilbenzeno, foi usada para a hidrólise contínua de sacarose utilizando um reator com membrana (RM), acoplado a uma membrana de ultrafiltração (UF-100kDa), ou de microfiltração (MF - um diâmetro de poro de 5µm). Em todos os testes, o pH (5,5), a temperatura (30ºC), o volume reacion
Brazilian Journal of Pharmaceutical Sciences. Publicado em: 2010-09
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8. Sistemas de análises químicas em fluxo explorando multi-impulsão, interface única ou quimiometria / Flow systems exploiting multi-pumping, single interface or chemometry
Multi-pumping flow systems (MPFS) present as an unique feature the use of solenoid pumps as fluid propelling devices, which deliver pulsed flows. This flow regime was evaluated in order to improve mixing conditions between the involved solutions, heating transfer and gas diffusion.The association of the chemometric methods of analysis and MPFS systems was de
Publicado em: 2009
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9. Modificações da parede celular de frutos do mamoeiro (Carica papaya L.) em diferentes estadios do desenvolvimento / Modifications of the cell wall of fruits of papaya (Carica papaya L.) at various stages of development
The plant cell wall is a unique component of plant tissues and its polysaccharide composition essential to understand food texture and its changes during post-harvestingl especially of climateric fruits, as is the case of papaya. The plant cell wall is composed of three domains: the first is formed by cellulose and hemicelluloses, the second of pectins and t
Publicado em: 2009
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10. Production, purification and partial characterization of invertase obtained from solid state cultivation of Aspergillus casiellus on soybean substrate / ProduÃÃo, purificaÃÃo e caracterizaÃÃo parcial da invertase obtida por fermentaÃÃo em estado sÃlido de soja com Aspergillus casiellus
The invertase, enzyme found in yeast, above all in the Sacharomyces cerevisiae species, invertebrate, vertebrate, green alga, bacteries, vegetal and fungus, is one of the principal accountable for sucrose hydrolysis to form the inverted syrup, is used by the food industry and pharmacy, in the hydrolyses of rafinose, inulin and gentianose. In the present work
Publicado em: 2009
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11. Efeito da fonte de carbono e nitrogênio na produção de β1,3glucanases por Trichoderma asperellum / Effect of source of carbon and nitrogen in the production of β-1 ,3-glucanase by Trichoderma asperellum
The β-1.3-glucanases have several functions in the cell as fungal metabolic in hydrolysis of polysaccharides for possible cellular assimilation; morphogenetic function in the hydrolysis or modifications of the cell wall, which includes growth and extension of the wall, altering the structure and composition of the wall and autolysis. In addition to pres
Publicado em: 2008
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12. Energetic and protein diet for adults of Apis mellifera Linnaeus 1758 (Hymenoptera: Apidae). / Dietas energÃticas e protÃicas para adultos de Apis mellifera Linnaeus, 1758 (Hymenoptera: Apidae)
The diet fed to adults of Apis mellifera in confinement is a relevant factor in the survival of these insects. In times of nectar shortage, a feeding supplementation with a solution of hydrolyzed sucrose through acid and heating can be given to the hive; citric acid found in lemon juice could be used. In this research, the survival of these confined insects
Publicado em: 2008