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	Provedor de dados Infoteca-e (13) Autor OLIVEIRA, M. N. de (13) XAVIER, J. H. V. (3) ALMEIDA, S. C. R. de (2) BRESEGHELLO, F. (2) SILVA, A. C. P. R. da (2) ATROCH, A. L. (1) AZEVEDO, D. M. P. de (1) BARROS, L. S. de (1) BAZONI, R. (1) CAMPOS, I. S. (1) CASTRO, E. da M. de (1) COLLICCHIO, E. (1) LEDO, F. J. da S. (1) LOPES FILHO, I. I. (1) LOPES, A. de M. (1) LUNZ, A. M. P. (1) MEDEIROS, J. A. (1) MENDONÇA, H. A de (1) MORAIS, O. P. de (1) MOURA NETO, F. P. (1) Mais... Palavra-chave Acre (7) Amazônia Ocidental (4) Pimenta Longa (4) Amazônia Ocidental. (3) Essential oils (3) Piper Hispidinervum. (3) Piper longum (3) Reforma Agrária. (3) Safrole (3) Óleo essencial (3) Aceites essenciales (2) Amazonia Occidental (2) Arroz de sequeiro (2) Assentamento (2) Maravilha (2) Pimenta longa (2) Safrol (2) Western Amazon (2) Aceites esenciales (1) Agrarian reform (1) Mais... Tipo do documento Séries anteriores (INFOTECA-E) (8) Artigo de divulgação na mídia (INFOTECA-E) (1) Capítulo em livro técnico (INFOTECA-E) (1) Comunicado Técnico (INFOTECA-E) (1) Documentos (INFOTECA-E) (1) Fôlder / Folheto / Cartilha (INFOTECA-E) (1) Mais... Ano 2013 (1) 2010 (1) 2006 (1) 2001 (1) 2000 (3) 1998 (2) 1997 (2) 1996 (2) Mais... País Brazil (13) Idioma Português (13)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 128 Primeira ... 1 2 3 4 5 6 7 ... Última Efeito da adição de sulfato de amônio sobre a produção de ácido succínico durante a fermentação alcoólica Anais da ESALQ Gutierrez,L.E.. A produção de ácido succínico por leveduras durante a fermentação alcoólica de mosto de melaço suplementado com 25, 50 e 100 ppm de nitrogênio na forma de sulfato de amônio foi determinada por cromatografia em fase gasosa. A adição de nitrogênio amoniacal não afetou significativamente a produção de álcool etílico. Houve redução significativa no teor de ácido succínico com o aumento da quantidade de nitrogênio adicionada. Tipo: Info:eu-repo/semantics/article Palavras-chave: Ácido succínico; Sulfato de amônio; Fermentação alcoólica; Leveduras; Saccharomyces cerevisiae. Ano: 1988 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761988000100027 Efeito da adição de sulfito sobre a produção de alcoóis superiores durante a fermentação alcoólica Anais da ESALQ Gutierrez,L.E.. Foi estudado o efeito de quatro concentrações de sulfito (19, 69, 119, 219 ppm) em mostos de melaço de cana em pH 4,O e o efeito do pH de mosto sulfitado sobre a produção de etanol, acetaldeído e os alcoóis n-propílico, isobutílico e isoamílico durante a fermentação alcoólica por Saccharomyces cerevisiae. Não foram detectadas diferenças significativas entre os teores de etanol dos mostos sulfitados. Houve aumento significativo no teor de acetaldeído e redução significativa nos teores de alcoóis superiores com o aumento da concentração de sulfito. A elevação do pH do mosto sulfitado provocou aumento significativo nos teores de acetaldeído e alcoóis superiores não afetando a produção de etanol. Tipo: Info:eu-repo/semantics/article Palavras-chave: Sulfito; Fermentação alcoólica; Óleo fusel; Alcoóis superiores; Saccharomyces cerevisiae. Ano: 1988 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761988000100022 Efeito dos ácidos fórmico e propiônico sobre a produção de alcoóis superiores durante a fermentação alcoólica Anais da ESALQ Gutierrez,L.E.. Foi estudado o efeito de concentrações de 250, 500 e 1000 ppm dos ácidos fórmico e propiônico sobre a produção de etanol e alcoóis superiores produzidos pela fermentação alcoólica de mosto sintético. Não foram detectadas diferenças significativas entre os tratamentos tanto para o ácido fórmico como para o ácido propiônico, embora uma redução não significativa no teor do álcool isoamílico foi observada com a dose de 1000 ppm dos ácidos fórmico e propiônico. Tipo: Info:eu-repo/semantics/article Palavras-chave: Ácido fórmico; Ácido propiônico; Alcoóis superiores; Fermentação alcoólica; Saccharomyces cerevisiae. Ano: 1988 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761988000100023 EFEITOS DO TRATAMENTO COMBINADO DE IRRADIAÇÃO GAMA E REFRIGERAÇÃO NO CRESCIMENTO DE LEVEDURA (Saccharomyces cerevisiae Hansen) EM SUCO DE LARANJA Scientia Agricola DOMARCO,R.E; SPOTO,M.H.F; WALDER,J.M.M; BLUMER,L; MATRAIA,C. O efeito da radiação gama e baixas temperaturas foi estudado no crescimento de Saccharomyces cerevisiae em suco de laranja. O suco concentrado de laranja (65°Brix) foi diluído a 10,5°Brix e inoculado com levedura comercial. As amostras foram irradiadas com doses de 1,0, 1,5, 2,0, 2,5, 5,0 e 7,5 kGy (Cobalto 60), a uma taxa de dose de 2,83 kGy/h. Todas as amostras foram armazenadas a 0°, 5° e 25°C, por 1, 7, 14, 21, 30, 60 e 90 dias. O tratamento combinado de 1 kGy e refrigeração a 0°C foi efetivo para a conservação do suco de laranja por 90 dias de armazenamento. A dose de 2,5 kGy foi suficiente para conservar o suco de laranja por 90 dias de armazenamento a 5°C. A 25°C, somente as doses mais altas (5 e 7,5 kGy) foram efetivas no controle do crescimento da... Tipo: Info:eu-repo/semantics/article Palavras-chave: Irradiação; Suco de laranja; Saccharomyces cerevisiae. Ano: 1996 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000100003 Effect of an Enzymatic Blend and Yeast on the Performance, Carcass Yield and Histomorphometry of the Small Intestine in Broilers from 21 to 42 Days of Age Rev. Bras. Ciênc. Avic. Sousa,RF; Dourado,LRB; Lopes,JB; Fernandes,ML; Kato,RK; Nascimento,DCN; Sakomura,NK; Lima,SBP; Ferreira,GJBC. ABSTRACT The present study was conducted to evaluate the performance, carcass yield, and histomorphometry of the small intestine of broilers fed yeast sugarcane supplemented with enzymatic blend from 22 to 42 days of age. Seven hundred broiler chicks were distributed in a completely randomized design in a factorial design (2x3+1), two levels of the enzyme blend (0 and 200 g/ton), three protein levels (0%, 6% and 12%) and a control diet. The level of 6% yeast showed higher feed intake and weight gain after 33 days. From 22 to 42 days there was no significant effect (p<0.05) to the use of yeast in animal performance, carcass yield and cuts. At 42 days an interaction between the factors for width and crypt depth in the duodenum and jejunum, respectively,... Tipo: Info:eu-repo/semantics/article Palavras-chave: Cane sugar; Microscopy; Metabolism; Saccharomyces cerevisiae; Xylanase. Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000200300 Effect of inactive dry yeast from sugar cane as protein source on rumen fermentation in Saanen goats Arq. Bras. Med. Vet. Zootec. Lima,L.S.; Alcalde,C.R.; Gomes,L.C.; Souza,R.; Rigolon,L.P.; Nakamura,C.V.. Five castrated and ruminally cannulated Saanen goats (±48.19kg) were used to evaluate intake, digestibility and rumen fermentation parameters of diets with inactive dry yeast as a soybean meal substitute (0, 25, 50, 75 and 100%). Goats were randomly assigned to a 5×5 (five levels of dry yeast x five periods) Latin square design. Diets were composed of corn silage (40%), ground corn, soybean meal and/or dry yeast and mineral supplement. The intake and digestibility of DM, OM, CP, NDF and TC were not influenced by the treatments. However, EE intake showed negative linear effect. The TDN content did not change with the inclusion of dry yeast in the diets. The pH, N-NH3 concentration and rumen short-chain fatty acids content did not differ among diets. Rumen... Tipo: Info:eu-repo/semantics/article Palavras-chave: Ammonia; Digestibility; Goats; Saccharomyces cerevisiae. Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352012000100021 Effect of method of secondary fermentation and type of base wine on physico-chemical and sensory qualities of sparkling plum wine BABT Joshi,Vinod K; Sharma,Sanjeev K; Goyal,Ravinder K; Thakur,Narayan S. Plum base wines prepared with potassium metabisulphite or sodium benzoate were converted into sparkling wine, either by `Methode Champenoise' or tank method with artificially carbonated wine serving as a control. In both the secondary fermentation methods ethanol and low temperature acclimatized yeast; Saccharomyces cerevisiae UCD-595 with optimized sugar (1.5%) and di-ammonium hydrogen phosphate (0.2%) were used. Both methods of sparkling wine production and the type of base wine affected the physico-chemical and sensory characteristics of the sparkling wine produced. In the secondary fermented wines, most of the physico-chemical characteristics were altered compared to that of artificially carbonated wines except volatile acidity, methanol, propanol and... Tipo: Info:eu-repo/semantics/article Palavras-chave: Plum; Prunus salicina L.; Sparkling wine; Potassium metabisulphite; Sodium benzoate; Saccharomyces cerevisiae. Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131999000300008 Effect of probiotics and Yucca schidigera extract supplementation on broiler meat quality Animal Sciences Benamirouche, Karima; Baazize-Ammi, Djamila; Hezil, Nadia; Djezzar, Reda; Niar, Abdellatif; Guetarni, Djamel. The current study investigated the effect of dietary supplementation with probiotics and Yucca schidigera extract on physicochemical parameters, proximate composition, mineral content and fatty acid profile of broiler breast and thigh muscles. In total, 240 one-day old broilers were randomly allocated into two dietary treatments groups: 1) Control (basal diet), 2) experimental (basal diet with two probiotics Pediococcus acidilactici and Saccharomyces cerevisiae and Yucca schidigera extract). The results showed that the pH value was higher in the experimental group than in the control group (p &lt; 0.05). However, drip, cook and thaw losses were not influenced by dietary treatment (p &gt; 0.05). A significant increase in protein, Fe, Zn, Na, P and a... Tipo: Info:eu-repo/semantics/article Palavras-chave: Breast; Meat quality; Pediococcus acidilactici; Saccharomyces cerevisiae; Thigh.. Ano: 2020 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/48066 Effect of raffinose and ultrasound pulses on invertase release by free and immobilized Saccharomyces cerevisiae in loofa (Luffa cylindrica) sponge BABT Marques,Leila Larisa Medeiros; Buzato,João Batista; Celligoi,Maria Antonia Pedrine Colabone. This study investigated the effect of raffinose and ultrasound pulses on invertase release from free S. cerevisiae and S. cerevisiae immobilized in Luffa cylindrica. The free cell culture was submitted to 2% raffinose pulse and irradiated for 2 minutes at 0.12 and 0.46 h-1 dilution rates. The immobilized cell culture was submitted to raffinose pulse and irradiated for 1, 2 and 4 minutes, at 0.10 h-1 dilution rate. In immobilized cells, the raffinose pulse increased the invertase activity from 5.38 to 7.27 U/mg. Ultrasound application in free cell culture at the 0.12 h-1 dilution rate gave the best results. The activity varied from 25.08 to 29.38 U/mg while the increase in immobilized cells was from 5.22 to 9.70 U/mg when sonicated for two minutes. These... Tipo: Info:eu-repo/semantics/article Palavras-chave: Immobilization; Invertase; Luffa cylindrica; Raffinose; Saccharomyces cerevisiae; Ultrasound. Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000700003 Effect of substrate on the in vitro protein digestibility of extracts generated by Saccharomyces cerevisiae Ciencia e Investigación Agraria Velásquez,Alejandro; Arias,Rodrigo. A. Velásquez, and R. Arias. 2013. Effect of substrate on the in vitro protein digestibility of extracts generated by Saccharomyces cerevisiae. Cien. Inv. Agr. 40(3): 503-511. The in vitro crude protein (CP) digestibility (Divcp), true protein digestibility (Dtp) and degradation rate (kd cp) were measured in different protein extracts of Saccharomyces cerevisiae (Sc) yeast. These extracts were generated through a biotechnological method (solid state fermentation). Wheat straw (TWS), barley straw (TBS), chili stubble (TCS), oats hull (TOH) and starch-glucose powder (TSP; control) were used as substrates for fermentation by Sc, and their effect on the aforementioned kinetic parameters in the generated cellular biomass was evaluated. In 12 mL cultivation... Tipo: Journal article Palavras-chave: In vitro protein digestibility; Protein extract; Saccharomyces cerevisiae; Vegetable substrates. Ano: 2013 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202013000300004 Effect of the trehalose levels on the screening of yeast as probiotic by in vivo and in vitro assays BJM Martins,Flaviano S.; Miranda,Ieso C.; Rosa,Carlos A.; Nicoli,Jacques R.; Neves,Maria J.. Probiotics are viable defined microorganisms (bacteria or yeasts) that exert a beneficial effect on the health of the host when ingested in adequate amounts. Screening for such biotherapeutic agents is commonly performed by in vitro assays simulating gastrointestinal environment to determine the ability to survive in the digestive tract. In the present study, the possibility of extrapolation of data obtained in in vitro assays to in vivo conditions was studied using five Saccharomyces cerevisiae strains isolated from Brazilian Atlantic rain forest. Trehalose contents and survival after exposure to a combination of physiological stresses generally found in the gastrointestinal tract of humans were determined for the five yeasts and compared to the behavior... Tipo: Info:eu-repo/semantics/article Palavras-chave: Probiotic; Saccharomyces boulardii; Saccharomyces cerevisiae; Stress; Trehalose. Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822008000100012 Effect of the type of substrate on the chemical composition and productivity of a protein concentrate of yeast origin Ciencia e Investigación Agraria Velásquez,Alejandro; Arias,Rodrigo; Toneatti,Marcelo. Extracts of Saccharomyces cerevisiae (Sc) yeast were generated using a biotechnological solid-state fermentation method. The organic material used for fermentation consisted of a variety of fibrous substrates of agricultural origin, and their effect on the chemical composition and productivity of cellular biomass generated was evaluated. The substrates studied included the following: wheat straw, WS; barley straw, BS; chili stubble, CS; oat hull, OH and starch powder, SP (control). For incubation with Sc, 2 g of (dry) vegetable substrate were added to 12 mL of cultivation medium. The fermentation time was seven days under aerobic conditions (pH 5, 26°C). After extraction of the yeast biomass, its chemical composition and productivity were analyzed. The... Tipo: Journal article Palavras-chave: Protein concentrate; Saccharomyces cerevisiae; Vegetable substrate. Ano: 2012 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202012000300003 Effects of pH and temperature on growth and glycerol production kinetics of two indigenous wine strains of Saccharomyces cerevisiae from Turkey BJM Yalcin,Seda Karasu; Ozbas,Z. Yesim. The study was performed in a batch system in order to determine the effects of pH and temperature on growth and glycerol production kinetics of two indigenous wine yeast strains Saccharomyces cerevisiae Kalecik 1 and Narince 3. The highest values of dry mass and specific growth rate were obtained at pH 4.00 for both of the strains. Maximum specific glycerol production rates were obtained at pH 5.92 and 6.27 for the strains Kalecik 1 and Narince 3, respectively. Kalecik 1 strain produced maximum 8.8 gL-1 of glycerol at pH 6.46. Maximum glycerol concentration obtained by the strain Narince 3 was 9.1 gL-1 at pH 6.48. Both yeasts reached maximum specific growth rate at 30ºC. Optimum temperature range for glycerol production was determined as 25-30ºC for the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Production kinetics; Glycerol; Growth parameters; Saccharomyces cerevisiae. Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822008000200024 Electrical stimulation of saccharomyces cerevisiae cultures BJM Araújo,Ofelia Q.F.; Coelho,Maria Alice Z.; Margarit,Isabel C.P.; Vaz-Junior,Carlos A.; Rocha-Leão,Maria Helena M.. Modulation of cell endogenous membrane potential by an external electrical field influences the structure and function of membrane compartments, proteins and lipid bi-layer. In this work, the effects of applied potential on Saccharomyces cerevisiae growth were characterized through simple yet conclusive experiments. Cell growth time profile and cell division were investigated as macroscopic response to the electrical stimulation. Control experiments were conducted under identical conditions except for the absence of applied potential. Through comparative analysis, electrical stimulation was verified to alter cell cycle as smaller sized population was observed, suggesting that a synchrony in cell division was promoted. Power spectral analysis was employed... Tipo: Info:eu-repo/semantics/article Palavras-chave: Electrochemical stress; Saccharomyces cerevisiae; Cell cycle; Viability. Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822004000100016 Energia metabolizável da levedura de cana-de-açúcar submetida a diferentes temperaturas e tempos de secagem para frangos de corte e poedeiras Arq. Bras. Med. Vet. Zootec. Lopes,C.C.; Rabello,C.B.V.; Dutra Júnior,W.M.; Medeiros,W.R.L.; Silva Júnior,R.V.; Custódio,L.R.; Lira,R.C.; Ludke,M.C.M.M.; Barbosa,E.N.R.; Lima,T.S.. Objetivou-se determinar a temperatura e o tempo de secagem por rolos rotativos, aos quais a, levedura de cana-de-açúcar é submetida que permitam seu melhor aproveitamento energético por galinhas poedeiras e frangos de corte. Para isso foram realizados três ensaios de metabolismo para determinar os valores de energia metabolizável aparente (EMA), aparente corrigida para nitrogênio (EMAn) e os coeficientes de metabolizabilidade aparente da matéria seca (CMMS) e da energia bruta (CMEB). O primeiro ensaio foi conduzido com galinhas poedeiras (E1), o segundo com frangos de corte (E2) em crescimento e o terceiro com frangos de corte em diferentes idades (E3). Nos ensaios E1 e E2 os tratamentos consistiram em uma dieta referência, milho e farelo de soja, e cinco... Tipo: Info:eu-repo/semantics/article Palavras-chave: Alimento alternativo; Digestibilidade; Processamento; Saccharomyces cerevisiae; Valor energético. Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352015000601711 ENERGY CULTURES AND SUSTAINABILITY IN BIOFUEL PRODUCTION 196 Mascarenhas Santos, Maria do Socorro; Silva, Cesar José da; Cruz, Sandra Helena da; Batistote, Margareth; Cardoso, Claudia Andrea Lima. Energy cultures are emerging as viable renewable energy sources because they satisfy sustainability requirements. The present study involves a survey regarding the technological characteristics for sugarcane and sweet sorghum energy crops, in addition to their potential for bioethanol production. An exploratory survey was conducted regarding the agronomic and technological characteristics of cane and sorghum. Pre-inmates were produced with YPSAC 5% liquid medium, sterilized and 0.10 grams of yeasts FT858 and Pedra-2 were inoculated and incubated at 30 °C for 10 h at 250 rpm. After the production, the cells were recovered by centrifugation, at 105 rpm, resulting in a 10 mg mg-1 concentration of moist dough. This dough was subsequently inoculated in the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Biomass; Saccharomyces cerevisiae; Bioethanol. Ano: 2022 URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/6719 Enriching nutritive value of cassava root by yeast fermentation Scientia Agricola Boonnop,Krisada; Wanapat,Metha; Nontaso,Ngarmnit; Wanapat,Sadudee. Cassava (Manihot esculenta) is extensively cultivated throughout the tropics and subtropics regions due to its ability to grow in diverse soil conditions and minimal management. Experiments were made to study the cassava root fermentation by yeasts in order to enhance the nutritive value of their products (fresh pulp and chips). Both cassava chip (CC) and fresh cassava root pulp (FCR) samples were fermented by Saccharomyces cerevisiae in solid-liquid media fermentation conditions during 132 hours and dried at 30ºC. Products were analyzed for proximate composition, mineral composition, essential aminoacids and antinutrient content. There were increases (p < 0.01) in protein (30.4% in CC and 13.5% in fermented cassava root -FCR) and fat contents (5.8% in... Tipo: Info:eu-repo/semantics/article Palavras-chave: Saccharomyces cerevisiae; Fermentation; Cassava chip; Fresh cassava root pulp; Protein; Animal feed. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162009000500007 Epididymal Sperm Characteristics, Testicular Morphometric Traits and Growth Parameters of Rabbit Bucks Fed Dietary Saccharomyces cerevisiae and/or Zinc Oxide Rev. Bras. Ciênc. Avic. Emmanuel,DC; Amaka,AE; Okezie,ES; Sunday,UP; Ethelbert,OC. ABSTRACT The objectives of this twelve-week feeding trial were to determine the effects of dietary Saccharomyces cerevisiae and/or zinc oxide on epididymal sperm characteristics, testicular morphometric traits, and growth parameters of bucks. 16 (New Zealand White) bucks 16-wk-old, weighing 2.8kg were randomly allotted to one of 4 treatment groups. Each treatment was replicated four times, with 1 buck per replicate, in a completely randomized design (CRD). Each treatment group was randomly assigned to one of the four commercial experimental diets designated thus: TA = control diet with no additives, TB = 0.12g/kg Saccharomyces cerevisiae, TC = 150mg/kg zinc oxide and TD = 0.12g/kg Saccharomyces cerevisiae +150 mg/kg zinc oxide. Although treatment had no... Tipo: Info:eu-repo/semantics/article Palavras-chave: Nutrition; Bucks; Semen; Saccharomyces cerevisiae; Zinc oxide. Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000100311 Ethanol production from sweet sorghum by Saccharomyces cerevisiae DBKKUY-53 immobilized on alginate-loofah matrices BJM Nuanpeng,Sunan; Thanonkeo,Sudarat; Klanrit,Preekamol; Thanonkeo,Pornthap. Abstract Ethanol production from sweet sorghum juice (SSJ) using the thermotolerant Saccharomyces cerevisiae strain DBKKUY-53 immobilized in an alginate-loofah matrix (ALM) was successfully developed. As found in this study, an ALM with dimensions of 20 × 20 × 5 mm3 is effective for cell immobilization due to its compact structure and long-term stability. The ALM-immobilized cell system exhibited greater ethanol production efficiency than the freely suspended cell system. By using a central composite design (CCD), the optimum conditions for ethanol production from SSJ by ALM-immobilized cells were determined. The maximum ethanol concentration and volumetric ethanol productivity obtained using ALM-immobilized cells under the optimal conditions were 97.54... Tipo: Info:eu-repo/semantics/article Palavras-chave: Alginate-loofah-matrix; Ethanol production; Saccharomyces cerevisiae; Sweet sorghum; Thermotolerant yeast. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822018000500140 Evaluation of cytochrome P-450 concentration in Saccharomyces cerevisiae strains BJPS Matuo,Míriam Cristina Sakuragui; Kikuchi,Irene Satiko; Pinto,Terezinha de Jesus Andreoli. Saccharomyces cerevisiae has been widely used in mutagenicity tests due to the presence of a cytochrome P-450 system, capable of metabolizing promutagens to active mutagens. There are a large number of S. cerevisiae strains with varying abilities to produce cytochrome P-450. However, strain selection and ideal cultivation conditions are not well defined. We compared cytochrome P-450 levels in four different S. cerevisiae strains and evaluated the cultivation conditions necessary to obtain the highest levels. The amount of cytochrome P-450 produced by each strain varied, as did the incubation time needed to reach the maximum level. The highest cytochrome P-450 concentrations were found in media containing fermentable sugars. The NCYC 240 strain produced the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Saccharomyces cerevisiae; Cytochrome P-450/obtention; Cytochrome P-450/cultivation conditions; Ethanol; Carbon sources. Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502010000300011 Registros recuperados: 128 Primeira ... 1 2 3 4 5 6 7 ... Última

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