Data/hora: 02/06/2024 12:52:53

Provedor de dados: | 58
País: | Brazil
Título: | Enhanced ethanol production at commercial scale from molasses using high gravity technology by mutant S. cerevisiae
Autores: | Arshad,Muhammad; Hussain,Tariq; Iqbal,Munawar; Abbas,Mazhar.
Data: | 2017-07-01
Ano: | 2017
Palavras-chave: | Very high gravity technology; Ethanol; Molasses; Aeration; Brix.
Resumo: | Abstract Very high gravity (VHG) technology was employed on industrial scale to produce ethanol from molasses (fermented) as well as by-products formation estimation. The effect of different Brix° (32, 36 and 40) air-flow rates (0.00, 0.20, 0.40, and 0.60 vvm) was studied on ethanol production. The maximum ethanol production was recorded to be 12.2% (v/v) at 40 Brix° with 0.2 vvm air-flow rate. At optimum level aeration and 40 Brix° VHG, the residual sugar level was recorded in the range of 12.5-18.5 g/L, whereas the viable cell count remained constant up to 50 h of fermentation and dry matter production increased with fermentation time. Both water and steam consumption reduced significantly under optimum conditions of Brix° and aeration rate with compromising the ethanol production. Results revealed VHG with continuous air flow is viable technique to reduce the ethanol production cost form molasses at commercial scale.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822017000300403
Editor: | Sociedade Brasileira de Microbiologia
Relação: | 10.1016/j.bjm.2017.02.003
Formato: | text/html
Fonte: | Brazilian Journal of Microbiology  v.48 n.3 2017
Fonte: | info:eu-repo/semantics/openAccess