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	Provedor de dados Ciênc. Tecnol. Aliment. (1) BABT (1) BJM (1) Autor Buzato,João Batista (3) Borsari,Raquel Renan Jorge (1) Celligoi,Maria Antonia P. Colabone (1) Celligoi,Maria Antonia Pedrine Colabone (1) Marques,Leila Larisa Medeiros (1) Silva,Rui Sérgio dos Santos Ferreira da (1) Tano,Marcia Sadae (1) Mais... Palavra-chave Batch (1) Ethanol (1) Factorial design (1) Fed batch (1) Fermentation (1) Immobilization (1) Invertase (1) Luffa cylindrica (1) Raffinose (1) Saccharomyces cerevisiae (1) Sucrose (1) Sugar cane (1) Sugar cane juice (1) Ultrasound (1) Z. mobilis (1) Mais... Tipo do documento Info:eu-repo/semantics/article (3) Ano 2006 (2) 2003 (1) País Brazil (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última 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 the presence of initial ethanol on ethanol production in sugar cane juice fermented by Zymomonas mobilis BJM Tano,Marcia Sadae; Buzato,João Batista. Ethanol production in sugar cane juice in high initial sugar concentration, fermented by Z. mobilis in the presence and absence of ethanol, was evaluated. Ethanol production was low in both media. The presence of initial ethanol in the sugar cane juice reduced ethanol production by 48.8%, biomass production by 25.0% and the total sugar consumption by 28.3%. The presence of initial ethanol in the medium did not affect significantly levan production and biomass yield coefficient (g biomass/g sugar consumed). Tipo: Info:eu-repo/semantics/article Palavras-chave: Ethanol; Sugar cane; Z. mobilis; Fermentation. Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822003000300012 Influence of carbon source and the fermentation process on levan production by Zymomonas mobilis analyzed by the surface response method Ciênc. Tecnol. Aliment. Borsari,Raquel Renan Jorge; Celligoi,Maria Antonia P. Colabone; Buzato,João Batista; Silva,Rui Sérgio dos Santos Ferreira da. The aim of this study is to assess sugar cane juice and sucrose as substrates, the batch and fed batch processes and their interaction in the levan production using a complete factorial design. Zymomonas mobilis was cultivated in different sugar cane juice and sucrose concentrations in two fermentation processes at 25 °C for 20 h. A complete factorial design (2³) was used to analyze the effects of the type and concentration of the substrate, as well as the batch and fed batch processes. A complete second factorial design (2²) was used to observe the importance of sugar cane juice. The results indicated that the batch process improved the levan production reaching 40.14 g/L. The addition of sugar cane juice was not statistically significant for levan... Tipo: Info:eu-repo/semantics/article Palavras-chave: Batch; Factorial design; Fed batch; Sucrose; Sugar cane juice. Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612006000300019 Registros recuperados: 3 Primeira ... 1 ... Última

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