Biosoftening of coir fiber using selected microorganisms.
Identifieur interne : 000851 ( Main/Exploration ); précédent : 000850; suivant : 000852Biosoftening of coir fiber using selected microorganisms.
Auteurs : Akhila Rajan [Inde] ; Resmi C. Senan ; C. Pavithran ; T Emilia AbrahamSource :
- Bioprocess and biosystems engineering [ 1615-7591 ] ; 2005.
Descripteurs français
- KwdFr :
- MESH :
- composition chimique : Cocos, Noix.
- croissance et développement : Phanerochaete, Pseudomonas putida.
- ultrastructure : Cocos, Noix, Phanerochaete, Pseudomonas putida.
English descriptors
- KwdEn :
- MESH :
- chemistry : Cocos, Nuts.
- growth & development : Phanerochaete, Pseudomonas putida.
- ultrastructure : Cocos, Nuts, Phanerochaete, Pseudomonas putida.
Abstract
Coir fiber belongs to the group of hard structural fibers obtained from coconut husk. As lignin is the main constituent of coir responsible for its stiffness, microbes that selectively remove lignin without loss of appreciable amounts of cellulose are extremely attractive in biosoftening. Five isolated strains were compared with known strains of bacteria and fungi. The raw fiber treated with Pseudomonas putida and Phanerocheate chrysosporium produced better softened fiber at 30+/-2 degrees C and neutral pH. FeSO4 and humic acid were found to be the best inducers for P. chrysosporium and P. putida, respectively, while sucrose and dextrose were the best C-sources for both. Biosoftening of unretted coir fibers was more advantageous than the retted fibers. Unlike the weak chemically softened fiber, microbial treatment produced soft, whiter fibers having better tensile strength and elongation (44.6-44.8%) properties. Scanning electron microscopy photos showed the mycelia penetrating the pores of the fiber, removing the tylose plug and degrading lignin.
DOI: 10.1007/s00449-005-0023-2
PubMed: 16220267
Affiliations:
Links toward previous steps (curation, corpus...)
Le document en format XML
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Pavithran</name></author><author><name sortKey="Abraham, T Emilia" sort="Abraham, T Emilia" uniqKey="Abraham T" first="T Emilia" last="Abraham">T Emilia Abraham</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2005">2005</date><idno type="RBID">pubmed:16220267</idno><idno type="pmid">16220267</idno><idno type="doi">10.1007/s00449-005-0023-2</idno><idno type="wicri:Area/Main/Corpus">000818</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">000818</idno><idno type="wicri:Area/Main/Curation">000818</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Curation">000818</idno><idno type="wicri:Area/Main/Exploration">000818</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Biosoftening of coir fiber using selected microorganisms.</title><author><name sortKey="Rajan, Akhila" sort="Rajan, Akhila" uniqKey="Rajan A" first="Akhila" last="Rajan">Akhila Rajan</name><affiliation wicri:level="1"><nlm:affiliation>Bioactive Polymer Engineering Section, Polymer Division, Regional Research Laboratory (CSIR), Trivandrum, 695 019 Kerala, India.</nlm:affiliation><country xml:lang="fr">Inde</country><wicri:regionArea>Bioactive Polymer Engineering Section, Polymer Division, Regional Research Laboratory (CSIR), Trivandrum, 695 019 Kerala</wicri:regionArea><wicri:noRegion>695 019 Kerala</wicri:noRegion></affiliation></author><author><name sortKey="Senan, Resmi C" sort="Senan, Resmi C" uniqKey="Senan R" first="Resmi C" last="Senan">Resmi C. 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As lignin is the main constituent of coir responsible for its stiffness, microbes that selectively remove lignin without loss of appreciable amounts of cellulose are extremely attractive in biosoftening. Five isolated strains were compared with known strains of bacteria and fungi. The raw fiber treated with Pseudomonas putida and Phanerocheate chrysosporium produced better softened fiber at 30+/-2 degrees C and neutral pH. FeSO4 and humic acid were found to be the best inducers for P. chrysosporium and P. putida, respectively, while sucrose and dextrose were the best C-sources for both. Biosoftening of unretted coir fibers was more advantageous than the retted fibers. Unlike the weak chemically softened fiber, microbial treatment produced soft, whiter fibers having better tensile strength and elongation (44.6-44.8%) properties. Scanning electron microscopy photos showed the mycelia penetrating the pores of the fiber, removing the tylose plug and degrading lignin.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">16220267</PMID><DateCompleted><Year>2006</Year><Month>02</Month><Day>03</Day></DateCompleted><DateRevised><Year>2005</Year><Month>12</Month><Day>05</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Print">1615-7591</ISSN><JournalIssue CitedMedium="Print"><Volume>28</Volume><Issue>3</Issue><PubDate><Year>2005</Year><Month>Dec</Month></PubDate></JournalIssue><Title>Bioprocess and biosystems engineering</Title><ISOAbbreviation>Bioprocess Biosyst Eng</ISOAbbreviation></Journal><ArticleTitle>Biosoftening of coir fiber using selected microorganisms.</ArticleTitle><Pagination><MedlinePgn>165-73</MedlinePgn></Pagination><Abstract><AbstractText>Coir fiber belongs to the group of hard structural fibers obtained from coconut husk. As lignin is the main constituent of coir responsible for its stiffness, microbes that selectively remove lignin without loss of appreciable amounts of cellulose are extremely attractive in biosoftening. Five isolated strains were compared with known strains of bacteria and fungi. The raw fiber treated with Pseudomonas putida and Phanerocheate chrysosporium produced better softened fiber at 30+/-2 degrees C and neutral pH. FeSO4 and humic acid were found to be the best inducers for P. chrysosporium and P. putida, respectively, while sucrose and dextrose were the best C-sources for both. Biosoftening of unretted coir fibers was more advantageous than the retted fibers. Unlike the weak chemically softened fiber, microbial treatment produced soft, whiter fibers having better tensile strength and elongation (44.6-44.8%) properties. Scanning electron microscopy photos showed the mycelia penetrating the pores of the fiber, removing the tylose plug and degrading lignin.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Rajan</LastName><ForeName>Akhila</ForeName><Initials>A</Initials><AffiliationInfo><Affiliation>Bioactive Polymer Engineering Section, Polymer Division, Regional Research Laboratory (CSIR), Trivandrum, 695 019 Kerala, India.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Senan</LastName><ForeName>Resmi C</ForeName><Initials>RC</Initials></Author><Author ValidYN="Y"><LastName>Pavithran</LastName><ForeName>C</ForeName><Initials>C</Initials></Author><Author ValidYN="Y"><LastName>Abraham</LastName><ForeName>T Emilia</ForeName><Initials>TE</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2005</Year><Month>11</Month><Day>16</Day></ArticleDate></Article><MedlineJournalInfo><Country>Germany</Country><MedlineTA>Bioprocess Biosyst Eng</MedlineTA><NlmUniqueID>101088505</NlmUniqueID><ISSNLinking>1615-7591</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D003059" MajorTopicYN="N">Cocos</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="Y">chemistry</QualifierName><QualifierName UI="Q000648" MajorTopicYN="N">ultrastructure</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D009754" MajorTopicYN="N">Nuts</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="Y">chemistry</QualifierName><QualifierName UI="Q000648" MajorTopicYN="N">ultrastructure</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D020075" MajorTopicYN="N">Phanerochaete</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="Y">growth & development</QualifierName><QualifierName UI="Q000648" MajorTopicYN="N">ultrastructure</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D016958" MajorTopicYN="N">Pseudomonas putida</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="Y">growth & development</QualifierName><QualifierName UI="Q000648" MajorTopicYN="N">ultrastructure</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2005</Year><Month>08</Month><Day>23</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2005</Year><Month>09</Month><Day>09</Day></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2005</Year><Month>10</Month><Day>13</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2006</Year><Month>2</Month><Day>4</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2005</Year><Month>10</Month><Day>13</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">16220267</ArticleId><ArticleId IdType="doi">10.1007/s00449-005-0023-2</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Inde</li></country></list><tree><noCountry><name sortKey="Abraham, T Emilia" sort="Abraham, T Emilia" uniqKey="Abraham T" first="T Emilia" last="Abraham">T Emilia Abraham</name><name sortKey="Pavithran, C" sort="Pavithran, C" uniqKey="Pavithran C" first="C" last="Pavithran">C. Pavithran</name><name sortKey="Senan, Resmi C" sort="Senan, Resmi C" uniqKey="Senan R" first="Resmi C" last="Senan">Resmi C. Senan</name></noCountry><country name="Inde"><noRegion><name sortKey="Rajan, Akhila" sort="Rajan, Akhila" uniqKey="Rajan A" first="Akhila" last="Rajan">Akhila Rajan</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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