Fungicidal values of bio-oils and their lignin-rich fractions obtained from wood/bark fast pyrolysis.
Identifieur interne : 001355 ( Main/Exploration ); précédent : 001354; suivant : 001356Fungicidal values of bio-oils and their lignin-rich fractions obtained from wood/bark fast pyrolysis.
Auteurs : Dinesh Mohan [Israël] ; Jenny Shi ; Darrel D. Nicholas ; Charles U. Pittman ; Philip H. Steele ; Jerome E. CooperSource :
- Chemosphere [ 0045-6535 ] ; 2008.
Descripteurs français
- KwdFr :
- MESH :
- composition chimique : Bois, Écorce.
- effets des médicaments et des substances chimiques : Basidiomycota.
- pharmacologie : Fongicides industriels, Huiles végétales, Lignine.
- Pinus, Quercus, Température élevée.
English descriptors
- KwdEn :
- MESH :
- chemical , pharmacology : Fungicides, Industrial, Lignin, Plant Oils.
- chemistry : Plant Bark, Wood.
- drug effects : Basidiomycota.
- Hot Temperature, Pinus, Quercus.
Abstract
Pine wood, pine bark, oak wood and oak bark were pyrolyzed in an auger reactor. A total of 16 bio-oils or pyrolytic oils were generated at different temperatures and residence times. Two additional pine bio-oils were produced at the National Renewable Energy Laboratory in a fluidized-bed reactor at different temperatures. All these bio-oils were fractionated to obtain lignin-rich fractions which consist mainly of phenols and neutrals. The pyrolytic lignin-rich fractions were obtained by liquid-liquid extraction. Whole bio-oils and their lignin-rich fractions were studied as potential environmentally benign wood preservatives to replace metal-based CCA and copper systems that have raised environmental concerns. Each bio-oil and several lignin-rich fractions were tested for antifungal properties. Soil block tests were conducted using one brown-rot fungus (Gloeophyllum trabeum) and one white-rot fungus (Trametes versicolor). The lignin-rich fractions showed greater fungal inhibition than whole bio-oils for a impregnation solution 10% concentration level. Water repellence tests were also performed to study wood wafer swelling behavior before and after bio-oil and lignin-rich fraction treatments. In this case, bio-oil fractions did not exhibit higher water repellency than whole bio-oils. Comparison of raw bio-oils in soil block tests, with unleached wafers, at 10% and 25% bio-oil impregnation solution concentration levels showed excellent wood preservation properties at the 25% level. The good performance of raw bio-oils at higher loading levels suggests that fractionation to generate lignin-rich fractions is unnecessary. At this more effective 25% loading level in general, the raw bio-oils performed similarly. Prevention of leaching is critically important for both raw bio-oils and their fractions to provide decay resistance. Initial tests of a polymerization chemical to prevent leaching showed some success.
DOI: 10.1016/j.chemosphere.2007.10.049
PubMed: 18093634
Affiliations:
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Nicholas</name></author><author><name sortKey="Pittman, Charles U" sort="Pittman, Charles U" uniqKey="Pittman C" first="Charles U" last="Pittman">Charles U. Pittman</name></author><author><name sortKey="Steele, Philip H" sort="Steele, Philip H" uniqKey="Steele P" first="Philip H" last="Steele">Philip H. Steele</name></author><author><name sortKey="Cooper, Jerome E" sort="Cooper, Jerome E" uniqKey="Cooper J" first="Jerome E" last="Cooper">Jerome E. Cooper</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2008">2008</date><idno type="RBID">pubmed:18093634</idno><idno type="pmid">18093634</idno><idno type="doi">10.1016/j.chemosphere.2007.10.049</idno><idno type="wicri:Area/Main/Corpus">001404</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">001404</idno><idno type="wicri:Area/Main/Curation">001404</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Curation">001404</idno><idno type="wicri:Area/Main/Exploration">001404</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Fungicidal values of bio-oils and their lignin-rich fractions obtained from wood/bark fast pyrolysis.</title><author><name sortKey="Mohan, Dinesh" sort="Mohan, Dinesh" uniqKey="Mohan D" first="Dinesh" last="Mohan">Dinesh Mohan</name><affiliation wicri:level="1"><nlm:affiliation>Department of Chemistry, Mississippi State University, Mississippi State, MS 39762, USA dm_1967@hotmail.com</nlm:affiliation><country wicri:rule="url">Israël</country><wicri:regionArea>Department of Chemistry, Mississippi State University, Mississippi State, MS 39762</wicri:regionArea><wicri:noRegion>MS 39762</wicri:noRegion></affiliation></author><author><name sortKey="Shi, Jenny" sort="Shi, Jenny" uniqKey="Shi J" first="Jenny" last="Shi">Jenny Shi</name></author><author><name sortKey="Nicholas, Darrel D" sort="Nicholas, Darrel D" uniqKey="Nicholas D" first="Darrel D" last="Nicholas">Darrel D. Nicholas</name></author><author><name sortKey="Pittman, Charles U" sort="Pittman, Charles U" uniqKey="Pittman C" first="Charles U" last="Pittman">Charles U. Pittman</name></author><author><name sortKey="Steele, Philip H" sort="Steele, Philip H" uniqKey="Steele P" first="Philip H" last="Steele">Philip H. Steele</name></author><author><name sortKey="Cooper, Jerome E" sort="Cooper, Jerome E" uniqKey="Cooper J" first="Jerome E" last="Cooper">Jerome E. Cooper</name></author></analytic><series><title level="j">Chemosphere</title><idno type="ISSN">0045-6535</idno><imprint><date when="2008" type="published">2008</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Basidiomycota (drug effects)</term><term>Fungicides, Industrial (pharmacology)</term><term>Hot Temperature (MeSH)</term><term>Lignin (pharmacology)</term><term>Pinus (MeSH)</term><term>Plant Bark (chemistry)</term><term>Plant Oils (pharmacology)</term><term>Quercus (MeSH)</term><term>Wood (chemistry)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Basidiomycota (effets des médicaments et des substances chimiques)</term><term>Bois (composition chimique)</term><term>Fongicides industriels (pharmacologie)</term><term>Huiles végétales (pharmacologie)</term><term>Lignine (pharmacologie)</term><term>Pinus (MeSH)</term><term>Quercus (MeSH)</term><term>Température élevée (MeSH)</term><term>Écorce (composition chimique)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="pharmacology" xml:lang="en"><term>Fungicides, Industrial</term><term>Lignin</term><term>Plant Oils</term></keywords><keywords scheme="MESH" qualifier="chemistry" xml:lang="en"><term>Plant Bark</term><term>Wood</term></keywords><keywords scheme="MESH" qualifier="composition chimique" xml:lang="fr"><term>Bois</term><term>Écorce</term></keywords><keywords scheme="MESH" qualifier="drug effects" xml:lang="en"><term>Basidiomycota</term></keywords><keywords scheme="MESH" qualifier="effets des médicaments et des substances chimiques" xml:lang="fr"><term>Basidiomycota</term></keywords><keywords scheme="MESH" qualifier="pharmacologie" xml:lang="fr"><term>Fongicides industriels</term><term>Huiles végétales</term><term>Lignine</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Hot Temperature</term><term>Pinus</term><term>Quercus</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Pinus</term><term>Quercus</term><term>Température élevée</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Pine wood, pine bark, oak wood and oak bark were pyrolyzed in an auger reactor. A total of 16 bio-oils or pyrolytic oils were generated at different temperatures and residence times. Two additional pine bio-oils were produced at the National Renewable Energy Laboratory in a fluidized-bed reactor at different temperatures. All these bio-oils were fractionated to obtain lignin-rich fractions which consist mainly of phenols and neutrals. The pyrolytic lignin-rich fractions were obtained by liquid-liquid extraction. Whole bio-oils and their lignin-rich fractions were studied as potential environmentally benign wood preservatives to replace metal-based CCA and copper systems that have raised environmental concerns. Each bio-oil and several lignin-rich fractions were tested for antifungal properties. Soil block tests were conducted using one brown-rot fungus (Gloeophyllum trabeum) and one white-rot fungus (Trametes versicolor). The lignin-rich fractions showed greater fungal inhibition than whole bio-oils for a impregnation solution 10% concentration level. Water repellence tests were also performed to study wood wafer swelling behavior before and after bio-oil and lignin-rich fraction treatments. In this case, bio-oil fractions did not exhibit higher water repellency than whole bio-oils. Comparison of raw bio-oils in soil block tests, with unleached wafers, at 10% and 25% bio-oil impregnation solution concentration levels showed excellent wood preservation properties at the 25% level. The good performance of raw bio-oils at higher loading levels suggests that fractionation to generate lignin-rich fractions is unnecessary. At this more effective 25% loading level in general, the raw bio-oils performed similarly. Prevention of leaching is critically important for both raw bio-oils and their fractions to provide decay resistance. Initial tests of a polymerization chemical to prevent leaching showed some success.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">18093634</PMID><DateCompleted><Year>2008</Year><Month>07</Month><Day>10</Day></DateCompleted><DateRevised><Year>2008</Year><Month>11</Month><Day>21</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0045-6535</ISSN><JournalIssue CitedMedium="Print"><Volume>71</Volume><Issue>3</Issue><PubDate><Year>2008</Year><Month>Mar</Month></PubDate></JournalIssue><Title>Chemosphere</Title><ISOAbbreviation>Chemosphere</ISOAbbreviation></Journal><ArticleTitle>Fungicidal values of bio-oils and their lignin-rich fractions obtained from wood/bark fast pyrolysis.</ArticleTitle><Pagination><MedlinePgn>456-65</MedlinePgn></Pagination><Abstract><AbstractText>Pine wood, pine bark, oak wood and oak bark were pyrolyzed in an auger reactor. A total of 16 bio-oils or pyrolytic oils were generated at different temperatures and residence times. Two additional pine bio-oils were produced at the National Renewable Energy Laboratory in a fluidized-bed reactor at different temperatures. All these bio-oils were fractionated to obtain lignin-rich fractions which consist mainly of phenols and neutrals. The pyrolytic lignin-rich fractions were obtained by liquid-liquid extraction. Whole bio-oils and their lignin-rich fractions were studied as potential environmentally benign wood preservatives to replace metal-based CCA and copper systems that have raised environmental concerns. Each bio-oil and several lignin-rich fractions were tested for antifungal properties. Soil block tests were conducted using one brown-rot fungus (Gloeophyllum trabeum) and one white-rot fungus (Trametes versicolor). The lignin-rich fractions showed greater fungal inhibition than whole bio-oils for a impregnation solution 10% concentration level. Water repellence tests were also performed to study wood wafer swelling behavior before and after bio-oil and lignin-rich fraction treatments. In this case, bio-oil fractions did not exhibit higher water repellency than whole bio-oils. Comparison of raw bio-oils in soil block tests, with unleached wafers, at 10% and 25% bio-oil impregnation solution concentration levels showed excellent wood preservation properties at the 25% level. The good performance of raw bio-oils at higher loading levels suggests that fractionation to generate lignin-rich fractions is unnecessary. At this more effective 25% loading level in general, the raw bio-oils performed similarly. Prevention of leaching is critically important for both raw bio-oils and their fractions to provide decay resistance. Initial tests of a polymerization chemical to prevent leaching showed some success.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Mohan</LastName><ForeName>Dinesh</ForeName><Initials>D</Initials><AffiliationInfo><Affiliation>Department of Chemistry, Mississippi State University, Mississippi State, MS 39762, USA dm_1967@hotmail.com</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Shi</LastName><ForeName>Jenny</ForeName><Initials>J</Initials></Author><Author ValidYN="Y"><LastName>Nicholas</LastName><ForeName>Darrel D</ForeName><Initials>DD</Initials></Author><Author ValidYN="Y"><LastName>Pittman</LastName><ForeName>Charles U</ForeName><Initials>CU</Initials><Suffix>Jr</Suffix></Author><Author ValidYN="Y"><LastName>Steele</LastName><ForeName>Philip H</ForeName><Initials>PH</Initials></Author><Author ValidYN="Y"><LastName>Cooper</LastName><ForeName>Jerome E</ForeName><Initials>JE</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013486">Research Support, U.S. Gov't, Non-P.H.S.</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>Chemosphere</MedlineTA><NlmUniqueID>0320657</NlmUniqueID><ISSNLinking>0045-6535</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D005659">Fungicides, Industrial</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D010938">Plant Oils</NameOfSubstance></Chemical><Chemical><RegistryNumber>9005-53-2</RegistryNumber><NameOfSubstance UI="D008031">Lignin</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D001487" MajorTopicYN="N">Basidiomycota</DescriptorName><QualifierName UI="Q000187" MajorTopicYN="Y">drug effects</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D005659" MajorTopicYN="N">Fungicides, Industrial</DescriptorName><QualifierName UI="Q000494" MajorTopicYN="Y">pharmacology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D006358" MajorTopicYN="N">Hot Temperature</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D008031" MajorTopicYN="N">Lignin</DescriptorName><QualifierName UI="Q000494" MajorTopicYN="Y">pharmacology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D028223" MajorTopicYN="Y">Pinus</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D024301" MajorTopicYN="N">Plant Bark</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="N">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010938" MajorTopicYN="N">Plant Oils</DescriptorName><QualifierName UI="Q000494" MajorTopicYN="Y">pharmacology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D029963" MajorTopicYN="Y">Quercus</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D014934" MajorTopicYN="N">Wood</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="N">chemistry</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2007</Year><Month>06</Month><Day>08</Day></PubMedPubDate><PubMedPubDate PubStatus="revised"><Year>2007</Year><Month>10</Month><Day>10</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2007</Year><Month>10</Month><Day>24</Day></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2007</Year><Month>12</Month><Day>21</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2008</Year><Month>7</Month><Day>11</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2007</Year><Month>12</Month><Day>21</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">18093634</ArticleId><ArticleId IdType="pii">S0045-6535(07)01347-1</ArticleId><ArticleId IdType="doi">10.1016/j.chemosphere.2007.10.049</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Israël</li></country></list><tree><noCountry><name sortKey="Cooper, Jerome E" sort="Cooper, Jerome E" uniqKey="Cooper J" first="Jerome E" last="Cooper">Jerome E. Cooper</name><name sortKey="Nicholas, Darrel D" sort="Nicholas, Darrel D" uniqKey="Nicholas D" first="Darrel D" last="Nicholas">Darrel D. Nicholas</name><name sortKey="Pittman, Charles U" sort="Pittman, Charles U" uniqKey="Pittman C" first="Charles U" last="Pittman">Charles U. Pittman</name><name sortKey="Shi, Jenny" sort="Shi, Jenny" uniqKey="Shi J" first="Jenny" last="Shi">Jenny Shi</name><name sortKey="Steele, Philip H" sort="Steele, Philip H" uniqKey="Steele P" first="Philip H" last="Steele">Philip H. Steele</name></noCountry><country name="Israël"><noRegion><name sortKey="Mohan, Dinesh" sort="Mohan, Dinesh" uniqKey="Mohan D" first="Dinesh" last="Mohan">Dinesh Mohan</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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