| Sweetgum (Liquidambar styraciflua L.): extraction of shikimic acid coupled to dilute acid pretreatment. | |
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MedLine Citation:
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PMID: 20506045 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Liquidambar styraciflua L., also known as sweetgum, is an understory hardwood species that has widespread distribution in the southeast USA, especially in pine plantations. In addition to being a possible biorefinery feedstock, sweetgum contains shikimic acid, which is a precursor for the drug Tamiflu. Sweetgum bark was extracted with 65 degrees C water and yielded 1.7 mg/g of shikimic acid, while sweetgum de-barked wood yielded 0.2 mg/g of shikimic acid. Because shikimic acid can be extracted with water, the coupling of the phytochemical hot water extraction with dilute acid pretreatment was examined. The addition of a 65 degrees C shikimic acid extraction step coupled to pretreatment with 0.98% H(2)SO(4) at 130 degrees C for 50 min resulted in 21% and 17% increases in xylose percent recovery from bark and de-barked wood, respectively. These results indicate that, in addition to recovering a high value product, the 65 degrees C wash step also increases xylose recovery. |
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Authors:
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Elizabeth Martin; Julie Duke; Mathew Pelkki; Edgar C Clausen; Danielle Julie Carrier |
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Publication Detail:
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Type: Evaluation Studies; Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S. Date: 2010-05-27 |
Journal Detail:
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Title: Applied biochemistry and biotechnology Volume: 162 ISSN: 1559-0291 ISO Abbreviation: Appl. Biochem. Biotechnol. Publication Date: 2010 Nov |
Date Detail:
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Created Date: 2010-08-30 Completed Date: 2010-12-06 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8208561 Medline TA: Appl Biochem Biotechnol Country: United States |
Other Details:
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Languages: eng Pagination: 1660-8 Citation Subset: IM |
Affiliation:
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Department of Biological and Agricultural Engineering, University of Arkansas, Fayetteville, AR 72701, USA. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Chemical Fractionation
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methods* Liquidambar / chemistry* Plant Bark / chemistry Plant Extracts / analysis, isolation & purification* Shikimic Acid / analysis, isolation & purification* |
| Chemical | |
Reg. No./Substance:
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0/Plant Extracts; 138-59-0/Shikimic Acid |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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