Baker S Yeast
Mostrando 1-12 de 55 artigos, teses e dissertações.
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1. Effect of acid hydrolysis and fungal biotreatment on agro-industrial wastes for obtainment of free sugars for bioethanol production
This study was designed to evaluate selected chemical and microbiological treatments for the conversion of certain local agro-industrial wastes (rice straw, corn stalks, sawdust, sugar beet waste and sugarcane bagasse) to ethanol. The chemical composition of these feedstocks was determined. Conversion of wastes to free sugars by acid hydrolysis varied from o
Braz. J. Microbiol.. Publicado em: 2012-12
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2. Pequi cake composition, hydrolysis and fermentation to bioethanol
Pequizeiro (Caryocar brasiliense Camb) fruits have been evaluated as a potential raw material for the newly established biodiesel industry. This scenario demands applications using the solid co-product derived from the extraction of pequi oil, called cake or meal. This study analyses the acid hydrolysis of carbohydrates present in the pequi meal in order to
Brazilian Journal of Chemical Engineering. Publicado em: 2011-03
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3. Antipyretic and antioxidant activities of 5-trifluoromethyl-4,5-dihydro-1H-pyrazoles in rats
The objective of this study was to determine the effect of eight 5-hydroxy-5-trifluoromethyl-4,5-dihydro-1H-1-carboxyamidepyrazoles (TFDPs) on rat body temperature and baker’s yeast-induced fever. TFDPs or vehicle (5% Tween 80 in 0.9% NaCl, 5 mL/kg) were injected subcutaneously and rectal temperature was measured as a function of time in 28-day-old male Wi
Brazilian Journal of Medical and Biological Research. Publicado em: 2010-12
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4. Avaliação do potencial antiinflamatório e antipirético da N-acetilcisteína sobre modelo de peritonite induzida por Saccharomyces cerevisae / Evaluation of anti-inflammatory and antipyretic effects of nacetylcysteine on baker yeast-induced peritonitis
A resposta febril é um processo dependente de inflamação, desencadeado pela produção de citocinas pró-inflamatórias a partir de fagócitos ativados. Estes mediadores podem ser liberados na corrente sangüínea ou ainda estimular nervos sensoriais e, desta forma, transmitir o sinal inflamatório até o centro termo controlador cerebral e, assim, elevar
Publicado em: 2009
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5. Estudo da redução de iminas / Stydy of imine reduction
This project studies the behavior of a series of imines structurally analogues in bioreductions with baker yeast and carrots, and also with NaBH4 using alternative chiral reagents like 1-amine-2-propanol, prolinol and 2-a- hidroxybenzyl-benzimidazole or tartaric acid. For biocatalysis we investigated different temperatures, solvents and proportions of reagen
Publicado em: 2008
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6. EFEITO DA DIACEREÍNA SOBRE A FEBRE INDUZIDA POR SUSPENSÃO DE Saccharomyces cerevisiae E POR PROSTAGLANDINA E2 EM RATOS JOVENS. / EFFECT OF DIACEREIN ON BAKER YEAST- AND PROSTAGLANDIN E2-INDUCED FEVER IN YOUNG RATS.
Fever is a systemic response that results of a cascade of events that usually begins with pathogenic infection. Its development represents an important aspect of host defense that is mediated by the central nervous system. However, antipyretic medication are routinely prescribed because fever is associated with discomfort and anxiety, apart from to represent
Publicado em: 2005
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7. Aromatic compounds containing Selenium and Tellurium: application of biocatalysis for preparation of enatiomerically enriched aromatic selenides and tellurides / Derivados aromáticos de selênio e telúrio: aplicação da biocatálise na preparação de selenetos e teluretos aromáticos enantiomericamente enriquecidos
A primeira parte desta tese consiste na preparação de compostos aromáticos contendo átomos de selênio e de telúrio. Quatro metodologias foram utilizadas para essa finalidade, a saber: orto-metalação de compostos contendo oxigênio, troca metal-halogênio em haletos aromáticos substituídos, reação de substituição eletrofílica aromática entre t
Publicado em: 2005
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8. Sintese enantiosseletiva de efedrina
In this work, some methodologies for enantioselective reduction of the prochiral diketone 1-phenyl-1,2-propanedione (3) mediated by Baker´s Yeast (Saccharomyces cerevisiae) had been studied. This diketone was synthesized by a-oxymation of propiophenone (7) (68-80%), followed by acidic hydrolysis of (2E)-1-phenyl-1,2-propanodione 2-oxime (8) (62-77%). The gr
Publicado em: 2003
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9. Estudo da secagem de lodo de esgoto atraves da fritura de imersão
The increase in the population and in industrialization resulted in an increase in the volume of wastes. Part of these wastes is the wastewater and its treatment is a basic necessity of any society. Wastewater treatment generates large amounts of residues sewage sludge - that must be treated as well due to its dangerous nature and its large quantities. The o
Publicado em: 2003
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10. Reduções enantiosseletivas de cetonas utilizando-se fermento de pão
Baker's yeast has been successful employed to reduce carbonyl compounds carrying appropriated substituents at distances under the electronic influence of the keto group. High yields and enantiomeric excess (ee) were obtained with 1,2-alkanedione, 1,2-alkanedione (2-O-methyloxime) and 1,3-alkanedione. Potential chiral building blocks were obtained and applied
Química Nova. Publicado em: 2001-12
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11. Effect of dietary (n-3) highly unsaturated fatty acids on growth and survival of fat snook (Centropomus parallelus, Pisces: Centropomidae) larvae during first feeding
The effect of rotifers, Brachionus rotundiformis (S-type), fed three different diets: A (rotifer fed Nannochloropsis oculata), B (rotifer fed N. oculata and baker's yeast, 1:1), and C (rotifer fed N. oculata and baker's yeast, 1:1, and enriched with Selcoâ), was evaluated based on the survival, growth and swim bladder inflation ra
Brazilian Journal of Medical and Biological Research. Publicado em: 2001-05
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12. Recuperação e purificação de enzimas usando adsorção em leito expandido
This work deals with the application of Expanded Bed Adsorption (EBA) to recovery and purify enzymes. Model proteins, lisozyme and bovine serum albumin (BSA), as well as some enzymes, glyceraldehyde 3-phosphate dehydrogenase (G3PDH) from baker s yeast, xylanase (from a commercial extract) and chitosanase from Bacil/us cereus were used to study the EBA backgr
Publicado em: 2001