[Analysis of decayed wood by fungi with X-ray diffractometry and Fourier transform infrared spectroscopy].
Identifieur interne : 003099 ( Main/Corpus ); précédent : 003098; suivant : 003100[Analysis of decayed wood by fungi with X-ray diffractometry and Fourier transform infrared spectroscopy].
Auteurs : Jian Lin ; Guang-Jie Zhao ; Ling-Xuan Meng ; Zhi-Ping LiSource :
- Guang pu xue yu guang pu fen xi = Guang pu [ 1000-0593 ] ; 2010.
English descriptors
- KwdEn :
- MESH :
- chemical , chemistry : Cellulose, Lignin, Polysaccharides.
- analysis : Wood.
- chemistry : Populus.
- Fungi, Spectroscopy, Fourier Transform Infrared, X-Ray Diffraction.
Abstract
In order to make clear the changes in the micro crystal structures of celluloses and the functional group of main components including cellulose, hemicelluloses and lignin in wood decayed by fungi, the crystallinity, layer spacing d in crystalline unit cell, width of crystallite and functional group of main components of Populus tomentosa Carr wood, which was decayed by Phanerochaete Chysosporium (white-rot) and Postia Placenta (brown-rot) with various durations, for two weeks, four weeks, six weeks, eight weeks and ten weeks, respectively, were investigated by means of X-ray diffraction and FTIR spectroscopy methods. It was concluded that the lattice structures of crystallite in wood cellulose were not destroyed by PC and PP, and the two theta angles and layer spacing d in crystallite were constant, although the decaying treatment times were different for each other when decayed by the same fungi. However, the crystallinity and width of crystallite decreased with the decaying treatment times increasing, and the decaying effects by PP were more significantly than those by PC, which showed that the damage extent of celluloses decayed by PP was greater than that by PC. It was estimated that the xylan in hemicelluloses had been degraded to various extents with the process of decaying in wood, resulting in the carbonyl content increasing, and the effects of degradation on hemicelluloses and celluloses by PC and PP were almost the same. Furthermore, benzene rings in lignin, which had no remarkable changes by PP, were oxidized into chain hydrocarbon after decaying by PC.
PubMed: 20707174
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pubmed:20707174Le document en format XML
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It was concluded that the lattice structures of crystallite in wood cellulose were not destroyed by PC and PP, and the two theta angles and layer spacing d in crystallite were constant, although the decaying treatment times were different for each other when decayed by the same fungi. However, the crystallinity and width of crystallite decreased with the decaying treatment times increasing, and the decaying effects by PP were more significantly than those by PC, which showed that the damage extent of celluloses decayed by PP was greater than that by PC. It was estimated that the xylan in hemicelluloses had been degraded to various extents with the process of decaying in wood, resulting in the carbonyl content increasing, and the effects of degradation on hemicelluloses and celluloses by PC and PP were almost the same. Furthermore, benzene rings in lignin, which had no remarkable changes by PP, were oxidized into chain hydrocarbon after decaying by PC.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" IndexingMethod="Curated" Owner="NLM"><PMID Version="1">20707174</PMID><DateCompleted><Year>2015</Year><Month>07</Month><Day>08</Day></DateCompleted><DateRevised><Year>2018</Year><Month>12</Month><Day>01</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">1000-0593</ISSN><JournalIssue CitedMedium="Print"><Volume>30</Volume><Issue>6</Issue><PubDate><Year>2010</Year><Month>Jun</Month></PubDate></JournalIssue><Title>Guang pu xue yu guang pu fen xi = Guang pu</Title><ISOAbbreviation>Guang Pu Xue Yu Guang Pu Fen Xi</ISOAbbreviation></Journal><ArticleTitle>[Analysis of decayed wood by fungi with X-ray diffractometry and Fourier transform infrared spectroscopy].</ArticleTitle><Pagination><MedlinePgn>1674-7</MedlinePgn></Pagination><Abstract><AbstractText>In order to make clear the changes in the micro crystal structures of celluloses and the functional group of main components including cellulose, hemicelluloses and lignin in wood decayed by fungi, the crystallinity, layer spacing d in crystalline unit cell, width of crystallite and functional group of main components of Populus tomentosa Carr wood, which was decayed by Phanerochaete Chysosporium (white-rot) and Postia Placenta (brown-rot) with various durations, for two weeks, four weeks, six weeks, eight weeks and ten weeks, respectively, were investigated by means of X-ray diffraction and FTIR spectroscopy methods. It was concluded that the lattice structures of crystallite in wood cellulose were not destroyed by PC and PP, and the two theta angles and layer spacing d in crystallite were constant, although the decaying treatment times were different for each other when decayed by the same fungi. However, the crystallinity and width of crystallite decreased with the decaying treatment times increasing, and the decaying effects by PP were more significantly than those by PC, which showed that the damage extent of celluloses decayed by PP was greater than that by PC. It was estimated that the xylan in hemicelluloses had been degraded to various extents with the process of decaying in wood, resulting in the carbonyl content increasing, and the effects of degradation on hemicelluloses and celluloses by PC and PP were almost the same. Furthermore, benzene rings in lignin, which had no remarkable changes by PP, were oxidized into chain hydrocarbon after decaying by PC.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Lin</LastName><ForeName>Jian</ForeName><Initials>J</Initials><AffiliationInfo><Affiliation>College of Material Science and Technology, Engineering Research Centre of Forestry Biomass Materials & Energy of Ministry of Education, Beijing Forestry University, Beijing 100083, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Zhao</LastName><ForeName>Guang-Jie</ForeName><Initials>GJ</Initials></Author><Author ValidYN="Y"><LastName>Meng</LastName><ForeName>Ling-Xuan</ForeName><Initials>LX</Initials></Author><Author ValidYN="Y"><LastName>Li</LastName><ForeName>Zhi-Ping</ForeName><Initials>ZP</Initials></Author></AuthorList><Language>chi</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>China</Country><MedlineTA>Guang Pu Xue Yu Guang Pu Fen Xi</MedlineTA><NlmUniqueID>9424805</NlmUniqueID><ISSNLinking>1000-0593</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D011134">Polysaccharides</NameOfSubstance></Chemical><Chemical><RegistryNumber>8024-50-8</RegistryNumber><NameOfSubstance UI="C007916">hemicellulose</NameOfSubstance></Chemical><Chemical><RegistryNumber>9004-34-6</RegistryNumber><NameOfSubstance UI="D002482">Cellulose</NameOfSubstance></Chemical><Chemical><RegistryNumber>9005-53-2</RegistryNumber><NameOfSubstance UI="D008031">Lignin</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D002482" MajorTopicYN="N">Cellulose</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="N">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D005658" MajorTopicYN="Y">Fungi</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D008031" MajorTopicYN="N">Lignin</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="N">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D011134" MajorTopicYN="N">Polysaccharides</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="N">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="N">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D017550" MajorTopicYN="Y">Spectroscopy, Fourier Transform Infrared</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D014934" MajorTopicYN="N">Wood</DescriptorName><QualifierName UI="Q000032" MajorTopicYN="Y">analysis</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D014961" MajorTopicYN="Y">X-Ray Diffraction</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2010</Year><Month>8</Month><Day>17</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2010</Year><Month>8</Month><Day>17</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2015</Year><Month>7</Month><Day>15</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">20707174</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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