Xylanase production with xylan rich lignocellulosic wastes by a local soil isolate of Trichoderma viride
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Journal of Microbiology |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822008000300025 |
Resumo: | In the present study, cultural and nutritional conditions for enhanced production of xylanase by a local soil isolate of Trichoderma viride, using various lignocellulosic substrates in submerged culture fermentation have been optimized. Of the lignocellulosics used, maize straw was the best inducer followed by jowar straw for xylanase production. The highest activity achieved was between 14 to 17 days of fermentation. A continuous increase in xylanase production was observed with increasing level of lignocellulosics in the medium and highest activity was observed with maize straw at 5% level. Xylanase production with higher levels of lignocellulosics (3 to 5%) of maize, jowar and barseem was found to be higher as compared to that with commercial xylan as carbon source. Sodium nitrate was the best nitrogen source among the six sources used. Maximum xylanase production was achieved with initial medium pH of 3.5-4.0 and incubation temperature of 25ºC.The enzyme preparation was effective in bringing about saccharification of different lignocellulosics. The xylanase production could be further improved by using alkali treated straw as carbon source. |
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Brazilian Journal of Microbiology |
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Xylanase production with xylan rich lignocellulosic wastes by a local soil isolate of Trichoderma virideXylanase productionTrichoderma virideLignocellulosicsSubmerged fermentationIn the present study, cultural and nutritional conditions for enhanced production of xylanase by a local soil isolate of Trichoderma viride, using various lignocellulosic substrates in submerged culture fermentation have been optimized. Of the lignocellulosics used, maize straw was the best inducer followed by jowar straw for xylanase production. The highest activity achieved was between 14 to 17 days of fermentation. A continuous increase in xylanase production was observed with increasing level of lignocellulosics in the medium and highest activity was observed with maize straw at 5% level. Xylanase production with higher levels of lignocellulosics (3 to 5%) of maize, jowar and barseem was found to be higher as compared to that with commercial xylan as carbon source. Sodium nitrate was the best nitrogen source among the six sources used. Maximum xylanase production was achieved with initial medium pH of 3.5-4.0 and incubation temperature of 25ºC.The enzyme preparation was effective in bringing about saccharification of different lignocellulosics. The xylanase production could be further improved by using alkali treated straw as carbon source.Sociedade Brasileira de Microbiologia2008-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822008000300025Brazilian Journal of Microbiology v.39 n.3 2008reponame:Brazilian Journal of Microbiologyinstname:Sociedade Brasileira de Microbiologia (SBM)instacron:SBM10.1590/S1517-83822008000300025info:eu-repo/semantics/openAccessGoyal,MeenakshiKalra,K.L.Sareen,V.K.Soni,G.eng2008-10-02T00:00:00Zoai:scielo:S1517-83822008000300025Revistahttps://www.scielo.br/j/bjm/ONGhttps://old.scielo.br/oai/scielo-oai.phpbjm@sbmicrobiologia.org.br||mbmartin@usp.br1678-44051517-8382opendoar:2008-10-02T00:00Brazilian Journal of Microbiology - Sociedade Brasileira de Microbiologia (SBM)false |
dc.title.none.fl_str_mv |
Xylanase production with xylan rich lignocellulosic wastes by a local soil isolate of Trichoderma viride |
title |
Xylanase production with xylan rich lignocellulosic wastes by a local soil isolate of Trichoderma viride |
spellingShingle |
Xylanase production with xylan rich lignocellulosic wastes by a local soil isolate of Trichoderma viride Goyal,Meenakshi Xylanase production Trichoderma viride Lignocellulosics Submerged fermentation |
title_short |
Xylanase production with xylan rich lignocellulosic wastes by a local soil isolate of Trichoderma viride |
title_full |
Xylanase production with xylan rich lignocellulosic wastes by a local soil isolate of Trichoderma viride |
title_fullStr |
Xylanase production with xylan rich lignocellulosic wastes by a local soil isolate of Trichoderma viride |
title_full_unstemmed |
Xylanase production with xylan rich lignocellulosic wastes by a local soil isolate of Trichoderma viride |
title_sort |
Xylanase production with xylan rich lignocellulosic wastes by a local soil isolate of Trichoderma viride |
author |
Goyal,Meenakshi |
author_facet |
Goyal,Meenakshi Kalra,K.L. Sareen,V.K. Soni,G. |
author_role |
author |
author2 |
Kalra,K.L. Sareen,V.K. Soni,G. |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Goyal,Meenakshi Kalra,K.L. Sareen,V.K. Soni,G. |
dc.subject.por.fl_str_mv |
Xylanase production Trichoderma viride Lignocellulosics Submerged fermentation |
topic |
Xylanase production Trichoderma viride Lignocellulosics Submerged fermentation |
description |
In the present study, cultural and nutritional conditions for enhanced production of xylanase by a local soil isolate of Trichoderma viride, using various lignocellulosic substrates in submerged culture fermentation have been optimized. Of the lignocellulosics used, maize straw was the best inducer followed by jowar straw for xylanase production. The highest activity achieved was between 14 to 17 days of fermentation. A continuous increase in xylanase production was observed with increasing level of lignocellulosics in the medium and highest activity was observed with maize straw at 5% level. Xylanase production with higher levels of lignocellulosics (3 to 5%) of maize, jowar and barseem was found to be higher as compared to that with commercial xylan as carbon source. Sodium nitrate was the best nitrogen source among the six sources used. Maximum xylanase production was achieved with initial medium pH of 3.5-4.0 and incubation temperature of 25ºC.The enzyme preparation was effective in bringing about saccharification of different lignocellulosics. The xylanase production could be further improved by using alkali treated straw as carbon source. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-09-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822008000300025 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822008000300025 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1517-83822008000300025 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Microbiologia |
publisher.none.fl_str_mv |
Sociedade Brasileira de Microbiologia |
dc.source.none.fl_str_mv |
Brazilian Journal of Microbiology v.39 n.3 2008 reponame:Brazilian Journal of Microbiology instname:Sociedade Brasileira de Microbiologia (SBM) instacron:SBM |
instname_str |
Sociedade Brasileira de Microbiologia (SBM) |
instacron_str |
SBM |
institution |
SBM |
reponame_str |
Brazilian Journal of Microbiology |
collection |
Brazilian Journal of Microbiology |
repository.name.fl_str_mv |
Brazilian Journal of Microbiology - Sociedade Brasileira de Microbiologia (SBM) |
repository.mail.fl_str_mv |
bjm@sbmicrobiologia.org.br||mbmartin@usp.br |
_version_ |
1752122201868337152 |