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The National Agricultural Library is one of four national libraries of the United States, with locations in Beltsville, Maryland and Washington, D.C. It houses one of the world's largest and most accessible agricultural information collections and serves as the nexus for a national network of state land-grant and U.S. Department of Agriculture field libraries. In fiscal year 2011 (Oct 2010 through Sept 2011) NAL delivered more than 100 million direct customer service transactions.

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Journal Article

Journal Article

Chemical pretreatment of Arundo donax L. for second-generation ethanol production  [2017]

Lemões, Juliana Silva; Lemons e Silva, Claudia Fernanda; Avila, Sabrina Peres Farias; ScherrerMontero, Cândida Raquel; et al.

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Pretreatment of lignocellulosic biomass is essential for using itas a raw material for chemical and biofuel. This study evaluates the effects of variables in the chemical pretreatment of the Arundo biomass on the glucose and xylose concentrations in the final enzymatic hydrolysate. Three pretreatments were tested: acid pretreatment, acid pretreatment followed by alkaline pretreatment, and alkaline pretreatment.The amounts of glucose and xylose released by enzymatic hydrolysis of the Arundo biomass obtained from acid pretreatment ranged from 6.2 to 19.1g/L and 1.8 to 3.1g/L, respectively. The addition of an alkaline pretreatment led to a higher yield from the enzymatic hydrolysis with the average glucose concentration 3.5 times that obtained after biomass hydrolysis with an acid pretreatment exclusively. The use of an alkaline pretreatment alone resulted in glucose and xylose concentrations similar to those obtained in the two-step pretreatment: acid pretreatment followed by alkaline pretreatment. There was no significant difference in 5-hydroxymethylfurfural, furfural or acetic acid concentrations among the pretreatments.Alkaline pretreatment was essential for obtaining high concentrations of glucose and xylose. The application of an alkaline pretreatment alone resulted in high glucose and xylose concentrations. This result is very significant, since it allows a cost reduction by eliminating one step.
From the journal
Electronic Journal of Biotechnology
ISSN : 0717-3458

Bibliographic information

Language:
English
Type:
Journal Article
In AGRIS since:
2018
Publisher:
Elsevier España, S.L.U.
All titles:
"Chemical pretreatment of Arundo donax L. for second-generation ethanol production"@eng
Other:
"Pre-press version"
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Bibliographic information

Language:
English
Type:
Journal Article
In AGRIS since:
2018
Publisher:
Elsevier España, S.L.U.
All titles:
"Chemical pretreatment of Arundo donax L. for second-generation ethanol production"@eng
Other:
"Pre-press version"