Citric acid and polyols production byAspergillus nigerat high glucose concentration in solid state fermentation on inert support
✍ Scribed by M. Gutiérrez-Rojas; J. Córdova; R. Auria; S. Revah; E. Favela-Torres
- Publisher
- Springer Netherlands
- Year
- 1995
- Tongue
- English
- Weight
- 376 KB
- Volume
- 17
- Category
- Article
- ISSN
- 0141-5492
No coin nor oath required. For personal study only.
✦ Synopsis
Aspergillus niger cultures at high initial glucose concentration (up to 400 gO) on Amberlite as inert support were carried out. Citric acid was accumulated in the support showing high concentration (94.54 g/l) and productivity (1.35 g/1 h) without inhibition related to the presence of metals (Mn 2+, Zn 2+, Co 2+, Cu 2+, and Ca 2+) at high concentrations. Citric acid accumulation was clearly associated with both, glycerol production and to the age of the culture. Glycerol and erythritol, the major osmoregulator metabolites, were also produced (8.16 and 24.57 g/1 respectively) at 400 g/l of glucose.