Prospective technology on bioethanol production from photofermentation.

Autor: Costa RL; School of Chemical Engineering, Federal University of Uberlandia. Av. Joao Naves de Avila 2121, Santa Monica 38408-144, Uberlandia, MG, Brazil., Oliveira TV; School of Chemical Engineering, Federal University of Uberlandia. Av. Joao Naves de Avila 2121, Santa Monica 38408-144, Uberlandia, MG, Brazil., Ferreira Jde S; School of Chemical Engineering, Federal University of Uberlandia. Av. Joao Naves de Avila 2121, Santa Monica 38408-144, Uberlandia, MG, Brazil., Cardoso VL; School of Chemical Engineering, Federal University of Uberlandia. Av. Joao Naves de Avila 2121, Santa Monica 38408-144, Uberlandia, MG, Brazil., Batista FR; School of Chemical Engineering, Federal University of Uberlandia. Av. Joao Naves de Avila 2121, Santa Monica 38408-144, Uberlandia, MG, Brazil. Electronic address: frxbatista@feq.ufu.br.
Jazyk: angličtina
Zdroj: Bioresource technology [Bioresour Technol] 2015 Apr; Vol. 181, pp. 330-7. Date of Electronic Publication: 2015 Jan 30.
DOI: 10.1016/j.biortech.2015.01.090
Abstrakt: The most important global demand is the energy supply from alternative source. Ethanol may be considered an environmental friendly fuel that has been produced by feedstock. The production of ethanol by microalgae represent a process with reduced environmental impact with efficient CO2 fixation and requiring less arable land. This work studied the production of ethanol from green alga Chlamydomonas reinhardtii through the cellular metabolism in a light/dark cycle at 25 °C in a TAP medium with sulfur depletion. The parameters evaluated were inoculum concentration and the medium supplementation with mixotrophic carbon sources. The combination of C.reinhardtii and Rhodobacter capsulatus through a hybrid or co-culture systems was also investigated as well. C.reinhardtii maintained in TAP-S produced 19.25±4.16 g/L (ethanol). In addition, in a hybrid system, with medium initially supplemented with milk whey permeated and the algal effluent used by R. capsulatus, the ethanol production achieved 19.94±2.67 g/L.
(Copyright © 2015 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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