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- Publisher Website: 10.1016/S0032-9592(02)00034-1
- Scopus: eid_2-s2.0-0036661106
- WOS: WOS:000176219300014
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Article: High cell density culture of the diatom Nitzschia laevis for eicosapentaenoic acid production: Fed-batch development
Title | High cell density culture of the diatom Nitzschia laevis for eicosapentaenoic acid production: Fed-batch development |
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Authors | |
Keywords | C:N Ratio Diatom Eicosapentaenoic Acid Fed-Batch High Cell Density Nitzschia Laevis |
Issue Date | 2002 |
Publisher | Elsevier Ltd. The Journal's web site is located at http://www.elsevier.com/locate/procbio |
Citation | Process Biochemistry, 2002, v. 37 n. 12, p. 1447-1453 How to Cite? |
Abstract | A fed-batch process was developed for high cell density culture of the diatom Nitzschia laevis for enhanced production of eicosapentaenoic acid (EPA). Firstly, among the various medium components, glucose (Glu) was identified as the limiting substrate while nitrate (NO3 -), tryptone (Tr) and yeast extract (Ye) were found to promote cell growth by enhancing specific growth rate. Therefore, these components were considered essential and were included in the feed medium for subsequent fed-batch cultivation. With the optimized ratio of NO3 - -:Tr:Ye being 1:2.6:1.3 (by weight), the relative proportions of glucose to the nitrogen sources in the feed were investigated. The optimal ratios of Glu: NO3 - for specific growth rate and EPA productivity were both determined to be 32:1 (by weight). Finally, based on the residual glucose concentration in the culture, a continuous medium feeding strategy for fed-batch fermenter cultivation was developed, with which, the maximal cell dry weight and EPA yield obtained were 22.1 g l-1 and 695 mg l-1, respectively, which were great improvements over those of batch cultures. © 2002 Elsevier Science Ltd. All rights reserved. |
Persistent Identifier | http://hdl.handle.net/10722/178773 |
ISSN | 2023 Impact Factor: 3.7 2023 SCImago Journal Rankings: 0.701 |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Wen, ZY | en_US |
dc.contributor.author | Jiang, Y | en_US |
dc.contributor.author | Chen, F | en_US |
dc.date.accessioned | 2012-12-19T09:49:40Z | - |
dc.date.available | 2012-12-19T09:49:40Z | - |
dc.date.issued | 2002 | en_US |
dc.identifier.citation | Process Biochemistry, 2002, v. 37 n. 12, p. 1447-1453 | en_US |
dc.identifier.issn | 1359-5113 | en_US |
dc.identifier.uri | http://hdl.handle.net/10722/178773 | - |
dc.description.abstract | A fed-batch process was developed for high cell density culture of the diatom Nitzschia laevis for enhanced production of eicosapentaenoic acid (EPA). Firstly, among the various medium components, glucose (Glu) was identified as the limiting substrate while nitrate (NO3 -), tryptone (Tr) and yeast extract (Ye) were found to promote cell growth by enhancing specific growth rate. Therefore, these components were considered essential and were included in the feed medium for subsequent fed-batch cultivation. With the optimized ratio of NO3 - -:Tr:Ye being 1:2.6:1.3 (by weight), the relative proportions of glucose to the nitrogen sources in the feed were investigated. The optimal ratios of Glu: NO3 - for specific growth rate and EPA productivity were both determined to be 32:1 (by weight). Finally, based on the residual glucose concentration in the culture, a continuous medium feeding strategy for fed-batch fermenter cultivation was developed, with which, the maximal cell dry weight and EPA yield obtained were 22.1 g l-1 and 695 mg l-1, respectively, which were great improvements over those of batch cultures. © 2002 Elsevier Science Ltd. All rights reserved. | en_US |
dc.language | eng | en_US |
dc.publisher | Elsevier Ltd. The Journal's web site is located at http://www.elsevier.com/locate/procbio | en_US |
dc.relation.ispartof | Process Biochemistry | en_US |
dc.rights | Process Biochemistry. Copyright © Elsevier Ltd. | - |
dc.subject | C:N Ratio | en_US |
dc.subject | Diatom | en_US |
dc.subject | Eicosapentaenoic Acid | en_US |
dc.subject | Fed-Batch | en_US |
dc.subject | High Cell Density | en_US |
dc.subject | Nitzschia Laevis | en_US |
dc.title | High cell density culture of the diatom Nitzschia laevis for eicosapentaenoic acid production: Fed-batch development | en_US |
dc.type | Article | en_US |
dc.identifier.email | Chen, F: sfchen@hku.hk | en_US |
dc.identifier.authority | Chen, F=rp00672 | en_US |
dc.description.nature | link_to_subscribed_fulltext | en_US |
dc.identifier.doi | 10.1016/S0032-9592(02)00034-1 | en_US |
dc.identifier.scopus | eid_2-s2.0-0036661106 | en_US |
dc.identifier.hkuros | 71929 | - |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-0036661106&selection=ref&src=s&origin=recordpage | en_US |
dc.identifier.volume | 37 | en_US |
dc.identifier.issue | 12 | en_US |
dc.identifier.spage | 1447 | en_US |
dc.identifier.epage | 1453 | en_US |
dc.identifier.isi | WOS:000176219300014 | - |
dc.publisher.place | United Kingdom | en_US |
dc.identifier.scopusauthorid | Wen, ZY=14012373200 | en_US |
dc.identifier.scopusauthorid | Jiang, Y=24605346600 | en_US |
dc.identifier.scopusauthorid | Chen, F=7404907980 | en_US |
dc.identifier.issnl | 1359-5113 | - |