Bioethanol from lignocellulosic biomass is one
of the important alternatives being considered due to the easy
adaptability of this fuel to existing engines and cleaner fuel with
higher octane rating than gasoline [1,2]. For the effective conversion
of lignocellulosic material into ethanol, there are three major steps
involved firstly, pretreatment e a preprocessing step that improves
enzymatic access to the cellulose; secondly, saccharification/enzymatic
hydrolysis e use of cellulases and hemicellulases; and thirdly,
fermentation of released sugars by specialized organisms [3].
Approximately 5.4 108 dry tons of sugarcane processed annually
throughout the world [4]. One ton of sugarcane generates 280 kg of
bagasse and in India nearly 101.3 106 tons of sugarcane bagasse
produced annually [5]. 50% of this biomass is used in distillery
plants as a source of energy, rest is stockpiled, which can be used for
useful purpose like ethanol production [6]. Pretreatment of any
lignocellulosic biomass is an important tool for practical cellulose
conversion processes, which is required to alter the structure of
Bioethanol from lignocellulosic biomass is one
of the important alternatives being considered due to the easy
adaptability of this fuel to existing engines and cleaner fuel with
higher octane rating than gasoline [1,2]. For the effective conversion
of lignocellulosic material into ethanol, there are three major steps
involved firstly, pretreatment e a preprocessing step that improves
enzymatic access to the cellulose; secondly, saccharification/enzymatic
hydrolysis e use of cellulases and hemicellulases; and thirdly,
fermentation of released sugars by specialized organisms [3].
Approximately 5.4 108 dry tons of sugarcane processed annually
throughout the world [4]. One ton of sugarcane generates 280 kg of
bagasse and in India nearly 101.3 106 tons of sugarcane bagasse
produced annually [5]. 50% of this biomass is used in distillery
plants as a source of energy, rest is stockpiled, which can be used for
useful purpose like ethanol production [6]. Pretreatment of any
lignocellulosic biomass is an important tool for practical cellulose
conversion processes, which is required to alter the structure of
การแปล กรุณารอสักครู่..
