Operating conditions of a 200l staged vertical reactor for bioconversion of wheat straw by Phanerochaete chrysosporium.
Identifieur interne : 000682 ( Main/Exploration ); précédent : 000681; suivant : 000683Operating conditions of a 200l staged vertical reactor for bioconversion of wheat straw by Phanerochaete chrysosporium.
Auteurs : Ankur Bhatnagar [Inde] ; Sanjay Kumar ; James GomesSource :
- Bioresource technology [ 0960-8524 ] ; 2008.
Descripteurs français
- KwdFr :
- MESH :
- métabolisme : Phanerochaete, Triticum.
- Bioréacteurs.
English descriptors
- KwdEn :
- MESH :
- metabolism : Phanerochaete, Triticum.
- Bioreactors.
Abstract
Bioconversion of wheat straw using Phanerochaete chrysosporium was carried out in a 200l staged vertical reactor. The bioconversion process was characterized by measuring the percentage degradation of lignin and cellulose, and increment in crude protein content. The effect of airflow rate, inoculum amount and wheat straw loading on bioconversion was investigated using a statistical experimental design. An analysis of variance was performed to determine response surfaces. The quality of bioconversion indicated by an optimization index called the desirability coefficient had the highest value of 0.75 for the fifth day of cultivation. This corresponded to an operating condition of 1.5kg wheat straw per stage using an inoculum amount of 0.38g (100g dry wheat straw)(-1) and an airflow rate of 15lmin(-1). The lignin and cellulose degradation achieved at this operating condition was 27% and 29%, respectively. A ratio of 3 for the weight of wheat straw to inoculum amount gave the highest crude protein of 5.9% on dry weight basis. Among the variables investigated, the airflow rate exhibited a significant effect on the quality of bioconversion. Our results indicate that the quality of bioconversion may be controlled by implementing a predetermined airflow rate schedule.
DOI: 10.1016/j.biortech.2008.01.031
PubMed: 18313918
Affiliations:
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The bioconversion process was characterized by measuring the percentage degradation of lignin and cellulose, and increment in crude protein content. The effect of airflow rate, inoculum amount and wheat straw loading on bioconversion was investigated using a statistical experimental design. An analysis of variance was performed to determine response surfaces. The quality of bioconversion indicated by an optimization index called the desirability coefficient had the highest value of 0.75 for the fifth day of cultivation. This corresponded to an operating condition of 1.5kg wheat straw per stage using an inoculum amount of 0.38g (100g dry wheat straw)(-1) and an airflow rate of 15lmin(-1). The lignin and cellulose degradation achieved at this operating condition was 27% and 29%, respectively. A ratio of 3 for the weight of wheat straw to inoculum amount gave the highest crude protein of 5.9% on dry weight basis. Among the variables investigated, the airflow rate exhibited a significant effect on the quality of bioconversion. Our results indicate that the quality of bioconversion may be controlled by implementing a predetermined airflow rate schedule.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">18313918</PMID><DateCompleted><Year>2008</Year><Month>09</Month><Day>03</Day></DateCompleted><DateRevised><Year>2008</Year><Month>06</Month><Day>03</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Print">0960-8524</ISSN><JournalIssue CitedMedium="Print"><Volume>99</Volume><Issue>15</Issue><PubDate><Year>2008</Year><Month>Oct</Month></PubDate></JournalIssue><Title>Bioresource technology</Title><ISOAbbreviation>Bioresour Technol</ISOAbbreviation></Journal><ArticleTitle>Operating conditions of a 200l staged vertical reactor for bioconversion of wheat straw by Phanerochaete chrysosporium.</ArticleTitle><Pagination><MedlinePgn>6917-27</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1016/j.biortech.2008.01.031</ELocationID><Abstract><AbstractText>Bioconversion of wheat straw using Phanerochaete chrysosporium was carried out in a 200l staged vertical reactor. The bioconversion process was characterized by measuring the percentage degradation of lignin and cellulose, and increment in crude protein content. The effect of airflow rate, inoculum amount and wheat straw loading on bioconversion was investigated using a statistical experimental design. An analysis of variance was performed to determine response surfaces. The quality of bioconversion indicated by an optimization index called the desirability coefficient had the highest value of 0.75 for the fifth day of cultivation. This corresponded to an operating condition of 1.5kg wheat straw per stage using an inoculum amount of 0.38g (100g dry wheat straw)(-1) and an airflow rate of 15lmin(-1). The lignin and cellulose degradation achieved at this operating condition was 27% and 29%, respectively. A ratio of 3 for the weight of wheat straw to inoculum amount gave the highest crude protein of 5.9% on dry weight basis. Among the variables investigated, the airflow rate exhibited a significant effect on the quality of bioconversion. Our results indicate that the quality of bioconversion may be controlled by implementing a predetermined airflow rate schedule.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Bhatnagar</LastName><ForeName>Ankur</ForeName><Initials>A</Initials><AffiliationInfo><Affiliation>Biocon Ltd., 20th KM, Hosur Road, Electronics City, Bangalore 560 100, India.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Kumar</LastName><ForeName>Sanjay</ForeName><Initials>S</Initials></Author><Author ValidYN="Y"><LastName>Gomes</LastName><ForeName>James</ForeName><Initials>J</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2008</Year><Month>03</Month><Day>07</Day></ArticleDate></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>Bioresour Technol</MedlineTA><NlmUniqueID>9889523</NlmUniqueID><ISSNLinking>0960-8524</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D019149" MajorTopicYN="Y">Bioreactors</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D020075" MajorTopicYN="N">Phanerochaete</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D014908" MajorTopicYN="N">Triticum</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2007</Year><Month>11</Month><Day>02</Day></PubMedPubDate><PubMedPubDate PubStatus="revised"><Year>2008</Year><Month>01</Month><Day>14</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2008</Year><Month>01</Month><Day>16</Day></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2008</Year><Month>3</Month><Day>4</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2008</Year><Month>9</Month><Day>4</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2008</Year><Month>3</Month><Day>4</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">18313918</ArticleId><ArticleId IdType="pii">S0960-8524(08)00058-8</ArticleId><ArticleId IdType="doi">10.1016/j.biortech.2008.01.031</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Inde</li></country></list><tree><noCountry><name sortKey="Gomes, James" sort="Gomes, James" uniqKey="Gomes J" first="James" last="Gomes">James Gomes</name><name sortKey="Kumar, Sanjay" sort="Kumar, Sanjay" uniqKey="Kumar S" first="Sanjay" last="Kumar">Sanjay Kumar</name></noCountry><country name="Inde"><noRegion><name sortKey="Bhatnagar, Ankur" sort="Bhatnagar, Ankur" uniqKey="Bhatnagar A" first="Ankur" last="Bhatnagar">Ankur Bhatnagar</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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