Ethanol Production from Hydrothermal Pretreated Empty Fruit Bunches

2014 ◽  
Vol 917 ◽  
pp. 80-86
Author(s):  
Mohd Saman Siti Aisyah ◽  
Pacharakamol Petchpradab ◽  
Yoshimitsu Uemura ◽  
Suzana Yusup ◽  
Machi Kanna ◽  
...  
Keyword(s):  
Ethanol Production ◽  
Lignocellulosic Biomass ◽  
Simultaneous Saccharification And Fermentation ◽  
Process Time ◽  
Empty Fruit Bunches ◽  
Separate Hydrolysis And Fermentation ◽  
Common Process ◽  
The Common ◽  
Ssf Process ◽  
Simultaneous Saccharification

Separate hydrolysis and fermentation (SHF) is the common process in producing ethanol from lignocellulosic biomass. Nowadays, simultaneous saccharification and fermentation (SSF) process has been seen as potential process for producing ethanol with shortens process time with higher yield of ethanol. Hence, in the current work, the utilization of empty fruit bunches (EFB) in SSF process was studied. In order to improve saccharification reactivity of EFB, hydrothermal pretreatment at 180 and 220 °C was used to pretreat EFB. The findings showed that SSF has the potential in producing ethanol from EFB.

Ethanol Production from Sugarcane Bagasse by Zymomonas mobilis Using Simultaneous Saccharification and Fermentation (SSF) Process

2009 ◽  
Vol 161 (1-8) ◽  
pp. 93-105 ◽  
Author(s):  
Danielle da Silveira dos Santos ◽  
Anna Carolina Camelo ◽  
Kelly Cristina Pedro Rodrigues ◽  
Luís Cláudio Carlos ◽  
Nei Pereira
Keyword(s):  
Ethanol Production ◽  
Sugarcane Bagasse ◽  
Zymomonas Mobilis ◽  
Simultaneous Saccharification And Fermentation ◽  
Ssf Process ◽  
Simultaneous Saccharification

scholarly journals 2G Ethanol Production From Palm Lignocellulosic Biomass

2016 ◽  
Vol 6 (1) ◽  
pp. 773-779
Author(s):  
Leonard Guimarães Carvalho ◽  
Luiz Felipe A. Modesto ◽  
Donato A. Gomes Aranda ◽  
Nei Pereira Jr
Keyword(s):  
Ethanol Production ◽  
Lignocellulosic Biomass ◽  
Palm Oil ◽  
Oil Palm ◽  
Simultaneous Saccharification And Fermentation ◽  
Fermentable Sugars ◽  
Lignocellulosic Material ◽  
The World ◽  
Oil Residue ◽  
Simultaneous Saccharification

Brazil presents the world's largest potential for the production of palm oil due to nearly 75 million hectares of land suitable for palm culture and advantageous soil and climate. The biomass generated in the production of palm oil (palm pressed fiber, PPF) is mainly composed of lignocellulosic material that can be hydrolyzed into fermentable sugars for further conversion to ethanol. This work evaluated alkaline pretreatment of this palm oil residue and subsequent Simultaneous Saccharification and Fermentation (SSF), achieving a conversion of glucose to ethanol higher than 90% and a concentration equivalent to 22.40 g/L of the alcohol.  

scholarly journals Kinetic modeling of simultaneous saccharification and fermentation of corn starch for ethanol production.

2014 ◽  
Vol 61 (1) ◽  
Author(s):  
Wojciech Białas ◽  
Adrian Czerniak ◽  
Daria Szymanowska-Powałowska
Keyword(s):  
Central Composite Design ◽  
Ethanol Production ◽  
Corn Starch ◽  
Simultaneous Saccharification And Fermentation ◽  
Ethanol Yield ◽  
Kinetics Model ◽  
Ssf Process ◽  
Central Composite ◽  
Simultaneous Saccharification ◽  
Granular Starch

Fuel ethanol production, using a simultaneous saccharification and fermentation process (SSF) of native starch from corn flour, has been performed using Saccharomyces cerevisiae and a granular starch hydrolyzing enzyme. The quantitative effects of mash concentration, enzyme dose and pH were investigated with the use of a Box-Wilson central composite design protocol. Proceeding from results obtained in optimal fermentation conditions, a kinetics model relating the utilization rates of starch and glucose as well as the production rates of ethanol and biomass was tested. Moreover, scanning electron microscopy (SEM) was applied to investigate corn starch granule surface after the SFF process. A maximum ethanol concentration of 110.36 g/l was obtained for native corn starch using a mash concentration of 25%, which resulted in ethanol yield of 85.71%. The optimal conditions for the above yield were found with an enzyme dose of 2.05 ml/kg and pH of 5.0. These results indicate that by using a central composite design, it is possible to determine optimal values of the fermentation parameters for maximum ethanol production. The investigated kinetics model can be used to describe SSF process conducted with granular starch hydrolyzing enzymes. The SEM micrographs reveal randomly distributed holes on the surface of granules.

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