Riboflavin
Mostrando 13-24 de 216 artigos, teses e dissertações.
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13. Isolation and characterization of an Ashbya gossypii mutant for improved riboflavin production
The use of the filamentous fungus, Ashbya gossypii, to improve riboflavin production at an industrial scale is described in this paper. A riboflavin overproducing strain was isolated by ultraviolet irradiation. Ten minutes after spore suspensions of A. gossypii were irradiated by ultraviolet light, a survival rate of 5.5% spores was observed, with 10% of the
Brazilian Journal of Microbiology. Publicado em: 2012-06
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14. Viral inactivation in hemotherapy: systematic review on inactivators with action on nucleic acids
The aim of this study was to conduct a systematic review on the photoinactivators used in hemotherapy, with action on viral genomes. The SciELO, Science Direct, PubMed and Lilacs databases were searched for articles. The inclusion criterion was that these should be articles on inactivators with action on genetic material that had been published between 2000
Revista Brasileira de Hematologia e Hemoterapia. Publicado em: 2012
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15. Effect of dye structure and redox mediators on anaerobic azo and anthraquinone dye reduction
We investigated the biological decolourisation of dyes with different molecular structures. The kinetic constant values (k1) achieved with azo dye Reactive Red 120 were 7.6 and 10.1 times higher in the presence of RM (redox mediators) AQDS and riboflavin, respectively, than the assays lacking RM. The kinetic constant achieved with the azo dye Congo Red was 4
Química Nova. Publicado em: 2012
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16. Acoplamento de técnicas espectrométricas com métodos quimiométricos de classificação e calibração multivariada em alimentos / Coupling spectrometric techniques with chemometric methods for classification and multivariate calibration in food
This research work describes three studies of chemometric methods employed for the classification and characterization of edible oils and its quality parameters through Fourier Transform mid infrared spectroscopy and near infrared spectroscopy, and for the monitoring the oxidative stability and quality of yogurt using fluorescence spectroscopy . The first an
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 06/05/2011
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17. Estabilidade oxidativa de queijo prato adicionado de luteína / Oxidative stability of cheese prato added with lutein
Lutein is associated with the reduction and prevention of age-related macular degeneration (ARMD), the main cause of irreversible blindness in the elderly. As this carotenoid is not synthesized by the human organism, its addition in cheese Prato is an option to lutein supplementation in the diet, beyond being able to act in the prevention of photo-oxidation.
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/04/2011
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18. Medium composition influence on Biotin and Riboflavin production by newly isolated Candida sp
Complex B vitamins as Biotin and Riboflavin are required by living organisms, not only for growth but also for metabolite production, and the feed market classifies them as growth promoters. Since Brazil will soon be one of the world's biggest animal protein producers, feed production is a large consumer of vitamins and micronutrients. The industry requires
Brazilian Journal of Microbiology. Publicado em: 2011-09
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19. Rearing the southern green stink bug using an artificial dry diet and an artificial plant.
Laboratory and greenhouse studies were conducted with an artificial dry diet to rear nymphs, and with an artificial plant as substrate for egg laying by the southern green stink bug, Nezara viridula (L.). The artificial diet was composed of: soybean protein (15 g); potato starch (7.5 g); dextrose (7.5 g); sucrose (2.5 g); cellulose (12.5 g); vitamin mixture
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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20. Avaliação nutricional e do consumo alimentar de trabalhadoras de enfermagem em um hospital público de Fortaleza / Nutritional assessment and dietary intake of nurses in a public hospital in Fortaleza
Accumulate evidence that the qualitative characteristics of the diet are important in defining the health status of the general population. The increasing prevalence of obesity and chronic diseases it is perceived increasingly important to study the contribution of this factor in worker health. Relationship between chronic diseases and body fat accumulation
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/12/2010
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21. Estabilidade e qualidade de iogurte adicionado de luteína e validação de método para determinação de riboflavina em iogurte / Stability and quality of yogurt supplemented with lutein and validation method for determination of riboflavin in yogurt
A luteína, a qual são atribuídas propriedades antioxidantes, está associada à diminuição e prevenção da degeneração macular relacionada à idade (DMRI), principal causa de cegueira irreversível em idosos. Como este carotenóide não é sintetizado pelo organismo humano, a sua adição em iogurte é mais uma opção de suplementação de luteína,
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/09/2010
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22. The response of young and adult rats to the riboflavin supplementation
O processo do envelhecimento e alguns transtornos, incluindo hipertensão, foram estreitamente associados ao estresse oxidativo. Em relação à riboflavina (vitamina B2), existe uma possibilidade de que suas propriedades antioxidantes podem contribuir para controlar esse evento. Assim, esse estudo utilizou vinte e quatro ratos machos jovens e velhos normote
Brazilian Archives of Biology and Technology. Publicado em: 2010-08
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23. Aspectos do mecanismo de formação 3-metil-2-buteno-1-tiol em cerveja e a reatividade dos iso-α-ácidos / Mechanistic aspect of 3-methyl-2-butene-1-thiol formation in beer and reactivity of iso-α-acids
A cerveja é uma bebida alcoólica fermentada derivada do amido e aromatizada com lúpulo (Humulus lupulus L.). Os α-ácidos são extraídos do cone do lúpulo e durante o processo de cozimento do mosto são isomerizados em iso-α-ácidos (IAAs), na configuração cis- e trans-, conferindo qualidade de espuma e sabor amargo característico da cerv
Publicado em: 2010
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24. Análise da Expressão de APE1 após Estresse Oxidativo Induzido em Células Proficientes e Deficientes na Via de Reparo por Excisão de Nucleotídeos
A riboflavina é uma vitamina de fundamental importância em organismos aeróbios, sendo precursora de importantes coenzimas que participam da cadeia transportadora de elétrons. Contudo, após a sensibilização da riboflavina com luz UV ou luz visível, observou-se a formação de espécies reativas de oxigênio (EROs), as quais podem oxidar o DNA. O repar
Publicado em: 2010