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	Provedor de dados Electron. J. Biotechnol. (3) Autor Laopaiboon,Lakkana (3) Laopaiboon,Pattana (3) Jaisil,Prasit (2) Klanrit,Preekamol (1) Nuanpeng,Sunan (1) Phukoetphim,Niphaphat (1) Sridee,Worawut (1) Srinophakun,Penjit (1) Mais... Palavra-chave Acclimation (1) Aldehyde biocide (1) Batch (1) Bioethanol (1) Biofilm (1) Dried spent yeast (1) Ethanol fermentation (1) RBC (1) Repeated-batch (1) Scale up (1) Scale-up (1) Sweet sorghum (1) Sweet sorghum juice (1) VHG (1) Very high gravity fermentation (1) Wastewater treatment (1) Mais... Tipo do documento Journal article (3) Ano 2011 (2) 2006 (1) País Chile (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Ethanol production from sweet sorghum juice under very high gravity conditions: Batch, repeated-batch and scale up fermentation Electron. J. Biotechnol. Nuanpeng,Sunan; Laopaiboon,Lakkana; Srinophakun,Penjit; Klanrit,Preekamol; Jaisil,Prasit; Laopaiboon,Pattana. Batch ethanol fermentations from sweet sorghum juice by Saccharomyces cerevisiae NP 01 were carried out in a 500 ml air-locked Erlenmeyer flask under very high gravity (VHG) and static conditions. The maximum ethanol production efficiency was obtained when 9 g l-1 of yeast extract was supplemented to the juice. The ethanol concentration (P), productivity (Qp) and yield (Yp/s) were 120.24 ± 1.35 g l-1, 3.01 ± 0.08 g l-1 h-1 and 0.49 ± 0.01, respectively. Scale up ethanol fermentation in a 5-litre bioreactor at an agitation rate of 100 rev min-1 revealed that P, Qp and Yp/s were 139.51 ± 0.11 g l-1, 3.49 ± 0.00 g l-1 h-1 and 0.49 ± 0.01, respectively, whereas lower P (119.53 ± 0.20 g l-1) and Qp (2.13 ± 0.01 g l-1 h-1) were obtained in a 50-litre bioreactor.... Tipo: Journal article Palavras-chave: Batch; Ethanol fermentation; Repeated-batch; Scale up; Sweet sorghum; VHG. Ano: 2011 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582011000100004 Effect of glutaraldehyde biocide on laboratory-scale rotating biological contactors and biocide efficacy Electron. J. Biotechnol. Laopaiboon,Lakkana; Phukoetphim,Niphaphat; Laopaiboon,Pattana. The effect of glutaraldehyde, a commercial biocide widely used in paper and pulp industry, on the performance of laboratory-scale rotating biological contactors (RBCs) as well as biocide efficacy was studied. Biofilms were established on the RBCs and then exposed to 0 - 180 ppm glutaraldehyde at a dilution rate of 1.60 h-1. The results showed that the biofilms became acclimated to glutaraldehyde and eventually could degrade it. Acclimation to the biocide took longer at the higher biocide concentrations. The degree of biocide degradation and chemical oxygen demand (COD) removal depended on acclimation period, the presence of other organic matters and the amount of mineral salts available. Glutaraldehyde at up to 80 ppm had no effect on treatment efficiency... Tipo: Journal article Palavras-chave: Acclimation; Aldehyde biocide; Biofilm; RBC; Wastewater treatment. Ano: 2006 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582006000400003 The use of dried spent yeast as a low-cost nitrogen supplement in ethanol fermentation from sweet sorghum juice under very high gravity conditions Electron. J. Biotechnol. Sridee,Worawut; Laopaiboon,Lakkana; Jaisil,Prasit; Laopaiboon,Pattana. Dried spent yeast (DSY) was used as a low-cost nitrogen supplement for ethanol fermentation from sweet sorghum juice under very high gravity (VHG) conditions by Saccharomyces cerevisiae NP 01. The fermentation was carried out at 30ºC in a 5-litre bioreactor. The results showed that DSY promoted ethanol production efficiencies. The ethanol concentration (P), productivity (Qp) and yield (Yp/s) of the sterile juice (total sugar of 280 g l-1) supplemented with 8 g l-1 of DSY were not different from those supplemented with yeast extract and/or peptone at the same amount. The initial yeast cell concentration of 5 x 10(7) cells ml-1 was found to be optimal for scale-up ethanol production. In addition, an increase in sugar concentration in inoculum preparation... Tipo: Journal article Palavras-chave: Bioethanol; Dried spent yeast; Scale-up; Sweet sorghum juice; Very high gravity fermentation. Ano: 2011 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582011000600003 Registros recuperados: 3 Primeira ... 1 ... Última

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