Several ionic liquids with chloride, acetate or phosphate anions, have been used to pretreat lignocellulosic materials such as wheat straw. The goal is to improve the reactivity of the cellulose fraction for enzymatic saccharification.A systematic study was performed and allowed us to highlight the importance of several parameters such as temperature, pretreatment duration, ionic liquid structure, lignocellulosic material concentration... The modification of the lignocellulosic material composition and structure was carefully examined and the possibility to fractionate lignocellulose with some ionic liquids was confirmed.We succeeded in optimizing pretreatment conditions for enzymatic saccharification with each ionic liquid. For some ionic liquids, the performances could be favourably compared to those obtained by a steam explosion pretreatment.

Pretreatment of lignocellulosic materials with ionic liquids: Which potential?

239th National Meeting (2010)

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