2011
DOI: 10.1590/s0100-40422011000100016
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Abstract: Recebido em 23/2/10; aceito em 6/8/10; publicado na web em 16/11/10 STUDY OF FERMENTATION OF THE HYDROLYZATE SWEET POTATO USING DIFFERENT STRAINS OF Saccharomyces cerevisiae. Ethanol is the most suitable substitute for oil-based fuels. The performance of the fermentation is affected by several factors, therefore the aim of this work was to evaluate the efficiency of the fermentation of a hydrolyzed must of sweet potato using three strains of the Saccharomyces cerevisiae. It was also evaluated the effect of thr… Show more

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Cited by 21 publications
(14 citation statements)
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References 6 publications
(5 reference statements)
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“…IPB-014 and IPB-162 clones had the highest EYR means, of (Table 4). EYR values for the municipalities of São Cristóvão and Canindé de São Francisco were higher than those found by (PAVLAK et al, 2011), who analyzed cultivar Duda for the same variable, and found EYR value of 161 L ton -1 . However, for the municipality of Malhador, results were lower than those observed in the study of Pavlak et al (2011).…”
Section: Ethanol Yield Per Ton Of Root (Eyr)contrasting
confidence: 65%
“…While attempting to optimize glucose production from sweet potato starch, Ribeiro et al (2009) observed that using high temperature and pressure was a more efficient method for acid hydrolysis than using water bath. Given that carbohydrates are converted into ethanol during fermentation, Pavlak et al, (2011) evaluated the efficiency of the fermentation process for hydrolyzed sweet potato using three Saccharomyces cerevisiae strains. The authors found that sweet potato used as raw material presented promising levels of viability, yield, and fermentation process efficiency for ethanol production.…”
Section: Introductionmentioning
confidence: 99%
“…An adaptation of the method published by Pavlak et al (2011) was used to perform the enzymatic hydrolysis of the starch. A sample of 9.0 g of the flour and 150.0 mL of Mc Ilvaine solution (formed by citric acid solution 0.1 mol L -1 and Na2HPO4 0,2 mol L -1 ) with pH 5.5…”
Section: Methodsmentioning
confidence: 99%
“…Diante disso, a produção de etanol no Brasil foi intensificada, tendo a cana-de-açúcar como a principal matéria-prima utilizada (MASIERO, 2012). A produção se dá, sobretudo de fontes renováveis, por meio da conversão de açúcares e amido em etanol (PAVLAK et al, 2011).…”
Section: Introductionunclassified
“…Portanto, a viabilidade celular da levedura no controle da fermentação alcoólica é um dos aspectos mais importantes, pois a eficiência do processo fermentativo é dada em função direta da manutenção das células ativas dispersas no mosto quanto maior esse número melhor será o desempenho do processo (PAVLAK et al, 2011;PASCHOALINI; Figura 27 -Valores percentuais de viabilidade celular (%) das linhagens dos cruzamentos direcionados entre SA84axBG71a (isolado 200) e SA84axBG33a (isolado 208) e dos cruzamentos massais entre CATxPE (isolado F23) e CATxPExBGxSA (isolados G2 e G8), em comparação com as linhagens parentais (PE-2 e SA-1). Médias com letras iguais dentro de um mesmo ciclo não diferem ao nível de 5% de significância Figura 31 -Velocidade de fermentação pelo desprendimento de CO 2 ao longo das 24 horas de cada ciclo.…”
Section: Seleção Prévia Em Fermentações Com Reciclo De Célulasunclassified