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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

Dilute-acid hydrolysis for optimization of xylose recovery from rice straw in a semi-pilot reactor  [2003]

Roberto, Inês C.; Mussatto, Solange I.; Rodrigues, Rita C.L.B.;

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Rice straw is composed of pentose that can be used as a raw material for the production of many types of useful compounds. One of these is xylitol, with a potential application in the food and medical areas. The increasing interest in biotechnological processes employing lignocellulosic residues is justifiable because these materials are cheap, renewable and widespread sugar sources. The objective of the study was to determine the effects of H2SO4 concentration and reaction time on the production of sugars (xylose, glucose and arabinose) and on the reaction byproducts (furfural, hydroxymethylfurfural (HMF) and acetic acid). Dilute sulfuric acid was used as a catalyst for the hydrolysis of rice straw at 121 °C in a 350-l batch hydrolysis reactor. Rationale for conducting this study was determined based on a central composite statistical design. Response surface methodology (RSM) was adopted to optimize the hydrolysis conditions aiming to attain high xylose selectivity. The optimum H2SO4 concentration of 1% and reaction time of 27 min was found. Under these conditions, 77% of xylose yield and 5.0 g g-1 of selectivity were attained.
From the journal
Industrial crops and products
ISSN : 0926-6690

Bibliographic information

Language:
English
Type:
Journal Article
In AGRIS since:
2014
Volume:
17
Issue:
3
Start Page:
171
End Page:
176
All titles:
"Dilute-acid hydrolysis for optimization of xylose recovery from rice straw in a semi-pilot reactor"@eng
Other:
"Includes references"
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Bibliographic information

Language:
English
Type:
Journal Article
In AGRIS since:
2014
Volume:
17
Issue:
3
Start Page:
171
End Page:
176
All titles:
"Dilute-acid hydrolysis for optimization of xylose recovery from rice straw in a semi-pilot reactor"@eng
Other:
"Includes references"