Microbial
Biotechnology |
|
Process
Biotechnology |
Electronic Journal of Biotechnology ISSN: 0717-3458 |
Vol.
10 No. 2, Issue of January 15, 2007 |
© 2007 by Pontificia Universidad Católica
de Valparaíso -- Chile |
Received December
28, 2005 / Accepted October 31, 2006 |
DOI: 10.2225/vol10-issue2-fulltext-8 |
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Influence
of medium constituents on the biosynthesis of cephalosporin-C
Vinod Kumar Nigam*
Birla
Institute of Scientific Research Statue Circle
Jaipur, Rajasthan 302001, India
Tel: 911412385283
Fax: 911412385121
E-mail: nigam_vinod@yahoo.com
Ruchi
Verma
Birla Institute of Scientific Research
Statue Circle
Jaipur,
Rajasthan 302001, India
Tel: 911412385283
Fax: 911412385121
E-mail: verma_ruchi03@rediffmail.com
Abhishek
Kumar
Birla Institute of Scientific Research
Statue Circle
Jaipur, Rajasthan 302001, India
Tel: 911412385283
Fax: 911412385121
Subir
Kundu
School of Biochemical
Engineering
Institute of Technology
Banaras
Hindu University
Varanasi, Uttar Pradesh 221005
India
Tel: 915422367829
Fax: 915422368693
E-mail: subirbhu@gmail.com
Purnendu
Ghosh
Birla Institute of Scientific Research
Statue Circle
Jaipur, Rajasthan 302001, India
Tel: 911412385283
Fax: 911412385121
E-mail: pghosh9@yahoo.com
*Corresponding
author
Financial
support: Department
of Science and Technology, Government of India for carrying out this
work.
Keywords:
Acremonium chrysogenum, batch fermentation, cephalosporin-C,
methionine, stirred tank bioreactor.
Abbreviations: |
CPC: cephalosporin-C
STBR: stirred tank bioreactor
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Acremonium
chrysogenum NCIM 1069 was used for the biosynthesis of
cephalosporin-C (CPC) in batch mode of cultivation. The effect of
different medium constituents for better yield of CPC was thoroughly
investigated. From the results of the fermentation, it was found that
ammonium sulphate as inorganic nitrogen source and methionine at the
concentration of 0.4% are most suitable for higher yield of antibiotic.
The variation in the C/N ratio on the biosynthesis of CPC showed that
a C/N ratio of 8.0 is most suitable for maximum production of CPC.
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