دورية أكاديمية
Optimization of acid hydrolysis from the hemicellulosic fraction of Eucalyptus grandis residue using response surface methodology.
| العنوان: | Optimization of acid hydrolysis from the hemicellulosic fraction of Eucalyptus grandis residue using response surface methodology. |
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| المؤلفون: | Canettieri EV; Department of Energy, Engineering Faculty of Guaratinguetá - FEG/UNESP, Av. Ariberto Pereira da Cunha, 333, Pedregulho, Guaratinguetá 12516-410, SP, Brazil., de Moraes Rocha GJ, de Carvalho JA Jr, de Almeida e Silva JB |
| المصدر: | Bioresource technology [Bioresour Technol] 2007 Jan; Vol. 98 (2), pp. 422-8. Date of Electronic Publication: 2006 Feb 10. |
| نوع المنشور: | Journal Article; Research Support, Non-U.S. Gov't |
| اللغة: | English |
| بيانات الدورية: | Publisher: Elsevier Applied Science Country of Publication: England NLM ID: 9889523 Publication Model: Print-Electronic Cited Medium: Print ISSN: 0960-8524 (Print) Linking ISSN: 09608524 NLM ISO Abbreviation: Bioresour Technol Subsets: MEDLINE |
| أسماء مطبوعة: | Original Publication: Barking, Essex, England : New York, N.Y. : Elsevier Applied Science ; Elsevier Science Pub. Co., 1991- |
| مواضيع طبية MeSH: | Eucalyptus/*chemistry , Polysaccharides/*chemistry, Bioreactors ; Carbohydrates/chemistry ; Hydrolysis ; Plant Bark ; Plant Leaves/chemistry ; Plant Shoots/chemistry |
| مستخلص: | Biotechnological conversion of biomass into fuels and chemicals requires hydrolysis of the polysaccharide fraction into monomeric sugars. Hydrolysis can be performed enzymatically and with dilute or concentrate mineral acids. The present study used dilute sulfuric acid as a catalyst for hydrolysis of Eucalyptus grandis residue. The purpose of this paper was to optimize the hydrolysis process in a 1.4 l pilot-scale reactor and investigate the effects of the acid concentration, temperature and residue/acid solution ratio on the hemicellulose removal and consequently on the production of sugars (xylose, glucose and arabinose) as well as on the formation of by-products (furfural, 5-hydroxymethylfurfural and acetic acid). This study was based on a model composition corresponding to a 2(3) orthogonal factorial design and employed the response surface methodology (RSM) to optimize the hydrolysis conditions, aiming to attain maximum xylose extraction from hemicellulose of residue. The considered optimum conditions were: H(2)SO(4) concentration of 0.65%, temperature of 157 degrees C and residue/acid solution ratio of 1/8.6 with a reaction time of 20 min. Under these conditions, 79.6% of the total xylose was removed and the hydrolysate contained 1.65 g/l glucose, 13.65 g/l xylose, 1.55 g/l arabinose, 3.10 g/l acetic acid, 1.23 g/l furfural and 0.20 g/l 5-hydroxymethylfurfural. |
| المشرفين على المادة: | 0 (Carbohydrates) 0 (Polysaccharides) 8024-50-8 (hemicellulose) |
| تواريخ الأحداث: | Date Created: 20060214 Date Completed: 20070227 Latest Revision: 20060911 |
| رمز التحديث: | 20221213 |
| DOI: | 10.1016/j.biortech.2005.12.012 |
| PMID: | 16473004 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 0960-8524 |
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| DOI: | 10.1016/j.biortech.2005.12.012 |