Pretreatment of Coconut Husk Using Ionic Liquid to Optimize Biofuel Sugar Recovery

W. Katinonkul & J. Phurirugpitikhon
This study demonstrates improved glucose recovery from coconut husk which is one of lignocellulosic material by employing an ionic liquid pretreatment. Two ionic liquids: -butyl-3-methylimidazolium chloride (BmimCl) and-ethyl-3-methylimidazolium acetate (EmimOAc)were studied. The pretreatment was accomplished by first subjecting coconut husk to an ionic liquid. Then the resulting cellulose was regenerated by using deionized water as an anti-solvent. The pretreated materials were enzymatically hydrolyzed using Celluclast 1.5L and Novozymes 188 for a maximum incubation time of...