Detoxification with reducing agents
AssigneeSekab E-Technology AB
InventorsLeif Jönsson, Björn Alriksson, Adnan Cavka
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Abstract
The present invention provides a method for decreasing the fermentation inhibition in a process for producing a target chemical from a pretreated cellulosic material, the process comprising enzymatic hydrolysis of the pretreated cellulosic material and fermentation of hydrolysed material, wherein the fermentation inhibitory properties of the material subjected to fermentation is decreased by an addition of at least one reducing agent to the pretreated material or hydrolysed material. Moreover, the present invention provides the use of dithionite for decreasing the fermentation inhibitory properties of a material being subjected to simultaneous enzymatic hydrolysis and fermentation.
Claims20
A method for decreasing the fermentation inhibition in a process for producing a target chemical from a pretreated lignocellulosic material, said process comprising enzymatically hydrolysing cellulose of the pretreated lignocellulosic material and fermenting the hydrolysed material,
- wherein the fermentation inhibitory properties of the material subjected to fermentation is decreased by an addition of at least one reducing agent to said pretreated material or hydrolysed material, wherein said enzymatic hydrolysis and fermentation are performed simultaneously in a fermentor.
Dependencies are inferred from the claim text.