[Optimization of fuel ethanol production from kitchen waste by Plackett-Burman design].
Huan Jing Ke Xue
; 29(5): 1452-6, 2008 May.
Article
en Zh
| MEDLINE
| ID: mdl-18624223
Kitchen garbage was chosen to produce ethanol through simultaneous saccharification and fermentation (SSF) by Zymomonas mobilis. Plackett-Burman design was employed to screen affecting parameters during SSF process. The parameters were divided into two parts, enzymes and nutritions. None of the nutritions added showed significant effect during the experiment, which demonstrated that the kitchen garbage could meet the requirement of the microorganism without extra supplementation. Protease and glucoamylase were determined to be affecting factors for ethanol production. Single factor experiment showed that the optimum usage of these two enzymes were both 100 U/g and the corresponding maximum ethanol was determined to be 53 g/L. The ethanol yield could be as high as 44%. The utilization of kitchen garbage to produce ethanol could reduce threaten of waste as well as improve the protein content of the spent. This method could save the ethanol production cost and benefit for the recycle of kitchen garbage.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Fuentes de Energía Bioeléctrica
/
Eliminación de Residuos
/
Zymomonas
/
Etanol
Idioma:
Zh
Revista:
Huan Jing Ke Xue
Año:
2008
Tipo del documento:
Article
País de afiliación:
China
Pais de publicación:
China