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| Format: | Artículo científico |
| Language: | en |
| Published: |
Universidad Nacional de Colombia
2010
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| Online Access: | https://www.redalyc.org/articulo.oa?id=77617808015 |
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Table of Contents:
- Study of itaconic acid production by Aspergillus terrus MJL05 strain with different variable M. I. Juy J. A., Orejas M. E. Lucca Biología glycerol Itaconic acid Aspergillus terreus Itaconic acid (IA) production by Aspergillus terreus MJL05 strain was investigated in submerged batch fermentation in a stirred bioreactor to determine the effect of varying the nitrogen, phosphorous and carbon sources concentrations in the production medium. Glycerol, a biodiesel by-product was reported as an efficient substrate to achieve high itaconic acid productivities. This was used as the sole carbon source. The resulting C:N 18, N:P 10.8 and C:P 195 ratios were selected as the best and allowed to improve IA concentration from 11.0 to 27.6 g/l with a volumetric productivity of 0.192 g IA/l.h and a specific productivity 0.013 g IA/g biomass.h. Bioprocess yields, Yx:s 0.27 g d.w. biomass/g substrate; Yp:x 1.63 g IA/g d.w. biomass and Yp:s 0.44 g IA/g substrate, allowed to assume the feasibility of using this strain for IA production. 2010 artículo científico 0123-3475 https://www.redalyc.org/articulo.oa?id=77617808015 en http://www.redalyc.org/revista.oa?id=776 Revista Colombiana de Biotecnología application/pdf Universidad Nacional de Colombia Revista Colombiana de Biotecnología (Colombia) Num.2 Vol.XII