Switchgrass for bioethanol and other value-added applications: A review

被引：288

作者：

Keshwani, Deepak R. ^{[1
]}

Cheng, Jay J. ^{[1
]}

机构：

[1] N Carolina State Univ, Dept Biol & Agr Engn, Raleigh, NC 27695 USA

来源：

BIORESOURCE TECHNOLOGY | 2009年 / 100卷 / 04期

关键词：

Switchgrass; Bioenergy; Ethanol; Lignocelluloses; Pretreatment; WHITE-ROT FUNGI; DILUTE-ACID PRETREATMENT; ENZYMATIC-HYDROLYSIS; SIMULTANEOUS SACCHARIFICATION; SOIL CARBON; LIGNOCELLULOSIC BIOMASS; XYLOSE FERMENTATION; ETHANOL-PRODUCTION; UNITED-STATES; FUEL ETHANOL;

D O I：

10.1016/j.biortech.2008.09.035

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Switchgrass is a promising feedstock for value-added applications due to its high productivity, potentially low requirements for agricultural inputs and positive environmental impacts. The objective of this paper is to review published research on the conversion of switchgrass into bioethanol and other value-added products. Environmental benefits associated with switchgrass include the potential for carbon sequestration, nutrient recovery from runoff, soil remediation and provision of habitats for grassland birds. Pretreatment of switchgrass is required to improve the yields of fermentable Sugars. Based on the type of pretreatment, glucose yields range from 70% to 90% and xylose yields range from 70% to 100% after hydrolysis. Following pretreatment and hydrolysis, ethanol yields range from 72% to 92% of the theoretical maximum. Other value-added uses of switchgrass include gasification, bio-oil production, newsprint production and fiber reinforcement in thermoplastic composites. Future prospects for research include increased biomass yields. optimization of feedstock composition for bioenergy applications, and efficient pentose fermentation to improve ethanol yields. (C) 2008 Elsevier Ltd. All rights reserved

引用

页码：1515 / 1523

页数：9

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