| Organosolv extraction of lignin from hydrolyzed almond shells and application of the delta-value theory. | |
| | |
MedLine Citation:
|
PMID: 20580226 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
The solubility of lignin from hydrolyzed almond (Prunus amygdalus) shells in different acetone, ethanol and dioxane-water mixtures and conditions (extraction time and temperature) was studied. The concept of the solubility parameter (delta-value) was applied to explain the effect of organic solvent concentration on lignin solubility. The organic solvent-water mixture that led to the highest lignin extraction was composed of a 75% vol. of organic solvent for all the solvent series investigated (acetone, ethanol and dioxane). Moreover, the best lignin extraction conditions were a temperature of 210 degrees C and an extraction time of 40 min for the acetone and ethanol series, and 25 min for the dioxane series. The delta-value of the hydrolyzed almond shell lignin [14.60 (cal/cm(3))(1/2)] and that of the organic solvent-water mixtures was calculated. The experimental delignification capacity of the aqueous organic solvents clearly reflected the proximity of their delta-value to that of lignin. The hydrogen-bonding capacity of the solvent-water mixtures was also taken into account. |
| | |
Authors:
|
Joaquín Quesada-Medina; Francisco Javier López-Cremades; Pilar Olivares-Carrillo |
Related Documents
:
|
12834586 - A novel solvent system for blending of polyurethane and heparin. 21798376 - Glass transition and dynamics in bsa-water mixtures over wide ranges of composition stu... 19603496 - Human tropoelastin sequence: dynamics of polypeptide coded by exon 6 in solution. 21557476 - Dna amplification via polymerase chain reaction inside miniemulsion droplets with subse... 18946706 - Regulation of oviposition in anopheles gambiae s.s.: role of inter- and intra-specific ... 15313306 - Anterior chamber irrigation with an ozonated solution as prophylaxis against infectious... |
Publication Detail:
|
Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2010-07-01 |
Journal Detail:
|
Title: Bioresource technology Volume: 101 ISSN: 1873-2976 ISO Abbreviation: Bioresour. Technol. Publication Date: 2010 Nov |
Date Detail:
|
Created Date: 2010-07-13 Completed Date: 2010-10-21 Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 9889523 Medline TA: Bioresour Technol Country: England |
Other Details:
|
Languages: eng Pagination: 8252-60 Citation Subset: IM |
Copyright Information:
|
Copyright 2010 Elsevier Ltd. All rights reserved. |
Affiliation:
|
Department of Chemical Engineering, Faculty of Chemistry, University of Murcia, Campus of Espinardo, 30071 Murcia, Spain. quesamed@um.es |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Biomass Chemical Fractionation / methods* Hydrolysis Lignin / chemistry, isolation & purification* Models, Chemical* Organic Chemicals / chemistry* Prunus / chemistry* Solubility Solvents / chemistry* Temperature Time Factors Water / chemistry |
| Chemical | |
Reg. No./Substance:
|
0/Organic Chemicals; 0/Solvents; 7732-18-5/Water; 9005-53-2/Lignin |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Evaluation of feeding glycerol on free-fatty acid production and fermentation kinetics of mixed rumi...
Next Document: Bio-mitigation of CO(2), calcite formation and simultaneous biodiesel precursors production using Ch...