Degradation of Untreated Switchgrass Biomass into Reducing Sugars in 1-(Alkylsulfonic)-3-Methylimidazolium Bronsted Acidic Ionic Liquid Medium Under Mild Conditions

被引：35

作者：

Amarasekara, Ananda S. ^{[1
]}

Shanbhag, Preethi ^{[1
]}

机构：

[1] Prairie View A&M Univ, Dept Chem, Prairie View, TX 77446 USA

来源：

BIOENERGY RESEARCH | 2013年 / 6卷 / 02期

基金：

美国国家科学基金会;

关键词：

Switchgrass; Biomass; Ionic liquid; Reducing sugars; Glucose; ENZYMATIC SACCHARIFICATION; DILUTE-ACID; PRETREATMENT; ETHANOL; DISSOLUTION; HYDROLYSIS; EFFICIENT; CELLULOSE; LIGNIN;

D O I：

10.1007/s12155-012-9291-2

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Switchgrass biomass samples collected at three different stages of maturity were seen degrading into reducing sugars and glucose when exposed to 1-(alkylsulfonic)-3-methylimidazolium Bronsted acidic ionic liquids under thermal and microwave conditions. The highest reducing sugar (58.1 +/- 2.1 %) and glucose (15.3 +/- 0.5 %) yields were obtained for switchgrass samples dissolved in 1-(butylsulfonic)-3-methylimidazolium chloride ionic liquid by heating at 70 A degrees C for 1 h followed by treatment with 0.22 g water/g switchgrass and then heating at 70 A degrees C for 1 h for the hydrolysis of polysaccharides. The samples treated under microwave conditions produced relatively lower yields of reducing sugar (22.0 A +/- 1.5-37.2 A +/- 1.8 %) and glucose (8.0 A +/- 0.2-12.8 A +/- 0.4 %) yields, compared to heat-treated samples.

引用

页码：719 / 724

页数：6

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