Sulfite Production
Mostrando 1-12 de 37 artigos, teses e dissertações.
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1. Extraction and evaluation of tannin from green coconut mesocarp
RESUMO O desenvolvimento de alternativas para o aproveitamento da casca de coco possibilita a redução da disposição inadequada de resíduos sólidos e proporciona uma nova opção de rendimento junto aos locais de produção. O presente trabalho tem como objetivo avaliar o potencial de extração de taninos do mesocarpo de coco verde e sua capacidade ade
Matéria (Rio J.). Publicado em: 16/09/2019
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2. Development of a hamburger-type product derived from bovine liver
Abstract Changes in eating habits generated a demand for processed foods. The use of bovine liver in processed foods provides nutritional enrichment; the use of oatmeal promotes moisture and fat substitution. This study evaluated hamburger-type products derived from bovine liver. Three formulations were prepared using bovine liver and containing 0%, 5%, and
Food Sci. Technol. Publicado em: 22/10/2018
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3. Application of Factorial Design for Optimization of the Synthesis of Lactulose Obtained from Whey Permeate
There is a great interest in developing suitable alternatives for the utilization of whey, a by-product from cheese production that contains high concentration of lactose. These alternatives allow the transformation of whey into several products, reducing its environmental impact and providing gains to the dairy industry through the development of new produc
J. Braz. Chem. Soc.. Publicado em: 2017-12
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4. Bacteriological Characteristics of Fresh Ostrich Sausage (Linguiça)
The aim of this study was to evaluate bacteriological characteristics and shelf life of three formulations of ostrich sausages (linguiças), only differing in lean meat percentage: Formula 1, 100% ostrich meat; Formula 2, 75% ostrich meat + 25% pork; and Formula 3, 50% ostrich meat + 25% pork + 25% chicken. All linguiças were vacuum-packed and stored at 5 �
Rev. Bras. Cienc. Avic.. Publicado em: 2015-06
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5. Papel como fonte alternativa para produção anaeróbia de hidrogênio / Paper as an alternative source for anaerobic production
O objetivo desse trabalho foi avaliar a produção de \ H IND.2\ a partir da degradação de papel sulfite com a utilização de consórcio microbiano obtido do fluido ruminal, na presença e ausência da celulase. Para obtenção de consórcio de bactérias essencialmente produtoras de \ H IND.2\ , fluido de rúmen in natura, utilizado como inóculo, foi su
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/03/2012
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6. AvaliaÃÃo da utilizaÃÃo de nitrato por cultura mista enriquecida com bactÃrias redutoras de sulfato (BRS) em efluente contendo sulfato
This work analyzed the decrease of sulfite production in a sulfate rich synthetic effluent. A mixed culture was used, isolated from the water used in petroleum production in CarmÃpolis, Sergipe State, Brazil, enriched with sulfate reducing bacteria (SRB). Initially, the microbial culture was acclimated to rising concentrations of Carbon, (0.1 - 5.0 g/L), an
Publicado em: 2006
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7. Avaliação da utilização de nitrato por cultura mista enriquecida com bactérias redutoras de sulfato (BRS) em efluente contendo sulfato
Este trabalho avaliou a redução da produção de sulfeto em um efluente sintético rico em sulfato. Foi empregada uma cultura mista, isolada da água de produção de petróleo de Carmópolis - SE, enriquecida com bactérias redutoras de sulfato (BRS). Inicialmente, a cultura microbiana foi aclimatada a concentrações crescentes de Carbono (0,1 - 5 g/L),
Publicado em: 2006
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8. Combined effects of sulfites, temperature, and agitation time on production of glycerol in grape juice by Saccharomyces cerevisiae.
Analysis of variance was used to evaluate the simultaneous effects of strain, incubation temperature (15 to 25 degrees C), agitation time (0 to 24 h), and initial sulfite concentration (100 to 300 ppm) on glycerol production in grape juice by Saccharomyces cerevisiae. Fourteen strains were studied to determine their growth patterns in the presence of sulfite
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9. Existence of a new type of sulfite oxidase which utilizes ferric ions as an electron acceptor in Thiobacillus ferrooxidans.
A new type of sulfite oxidase which utilizes ferric ion (Fe3+) as an electron acceptor was found in iron-grown Thiobacillus ferrooxidans. It was localized in the plasma membrane of the bacterium and had a pH optimum at 6.0. Under aerobic conditions, 1 mol of sulfite was oxidized by the enzyme to produce 1 mol of sulfate. Under anaerobic conditions in the pre
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10. Coupled enzymatic production of sulfite, thiosulfate, and hydrogen sulfide from sulfur: purification and properties of a sulfur oxygenase reductase from the facultatively anaerobic archaebacterium Desulfurolobus ambivalens.
From aerobically grown cells of the extremely thermophilic, facultatively anaerobic chemolithoautotrophic archaebacterium Desulfurolobus ambivalens (DSM 3772), a soluble oxygenase reductase (SOR) was purified which was not detectable in anaerobically grown cells. In the presence of oxygen but not under a hydrogen atmosphere, the enzyme simultaneously produce
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11. Use of sulfite and hydrogen peroxide to control bacterial contamination in ethanol fermentation.
Lactic acid bacteria isolated from an industrial-scale ethanol fermentation process were used to evaluate sulfite as a bacterial-contamination control agent in a cell-recycled continuous ethanol fermentation process. The viabilities of bacteria were decreased by sulfite at concentrations of 100 to 400 mg liter-1, while sulfite at the same concentrations did
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12. Roles of cysteine sulfinate and transaminase on in vitro dark reversion of urocanase in Pseudomonas putida.
Urocanase is inactivated in intact cells of Pseudomonas putida and photoactivated by brief exposure of the cells to the UV radiation in sunlight. The dark reversion (inactivation) in vitro is explained by the formation of a sulfite-NAD adduct. Our objective was to investigate the dark reversion in vivo. Various compounds were added to P. putida cells, and th