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Lesaffre acquires Butalco

Following the launch of its new business unit Leaf Technologies, Lesaffre has announced the...
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Algal biofuels development receives $3.5 million investment

Cellana, a biofuels company based in Kailua-Kona, will receive a $3.5 million (€2.6...
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Feedstock improvement projects receive $12.6 million

The US Department of Energy (DOE) and US Department of Agriculture (USDA) has selected ten...
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Web platform reveals crop conditions

Genscape's LandViewer website offers an insight into current corn crop condition and price...
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Upcoming Events
Biofuels International Conference 2014
24 September 2014 - 25 September 2014
Ghent, Belgium
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Tank Storage Asia 2014
24 September 2014 - 25 September 2014
Marina Bay Sands, Singapore
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Tank Storage Germany
19 November 2014 - 20 November 2014
Hamburg, Germany
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National Advanced Biofuels Conference & Expo
13 October 2014 - 15 October 2014
Minneapolis
2nd BBEST Conference
20 October 2014 - 24 October 2014
Sao Paulo, Brazil
World Ethanol & Biofuels
3 November 2014 - 6 November 2014
Budapest, Hungary

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Volume 7, Issue 2

Feature: Second generation biofuel from a fifth generation bioreactor

The second generation production process is more complex than the first, largely because the carbon required is not present in a form that is easily available to microorganisms, such as starch or sugar.

Cellulose needs to first be cleaved in an enzymatic process. This makes the overall procedure a two phase process that consists of enzymatic hydrolysis to release the sugar followed by the actual fermentation. In order to accelerate the process and save on the expenditures involved in purchasing two different plants, efforts are being made to combine these two processes. This process with simultaneous hydrolysis and fermentation is called Simultaneous Saccharification and Fermentation (SSF).

The art of combining these two process steps is to design a bioreactor that meets the stringent requirements regarding the thorough mixing of solids during the hydrolysis step just as ideally as it provides perfect cultivation conditions and bioprocess control during the anaerobic fermentation.




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Volume 8, Issue 4

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