Format

Send to

Choose Destination
See comment in PubMed Commons below
Bioresour Technol. 2009 Feb;100(4):1515-23. doi: 10.1016/j.biortech.2008.09.035. Epub 2008 Oct 30.

Switchgrass for bioethanol and other value-added applications: a review.

Author information

  • 1Department of Biological and Agricultural Engineering, North Carolina State University, Raleigh, NC 27695-7625, USA.

Abstract

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.

PMID:
18976902
DOI:
10.1016/j.biortech.2008.09.035
[PubMed - indexed for MEDLINE]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Elsevier Science
    Loading ...
    Support Center