Abstract
The biosynthesis of xanthan by Xanthomonas campestris was found to be affected by the addition of citric acid in fed batch mode. Under oxygen-limiting conditions, the addition of up to 2.6 g citric acid per litre improved cell viability as well as increasing xanthan yield by up to 80%. Comparative xanthan formation profiles at different operating conditions indicate that at higher aeration (when there was no oxygen limitation), citric acid addition did not improve xanthan production.
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Jana, A., Ghosh, P. Stimulation of xanthan production by Xanthomonas campestris using citric acid. World Journal of Microbiology and Biotechnology 13, 261–264 (1997). https://doi.org/10.1023/A:1018518620717
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DOI: https://doi.org/10.1023/A:1018518620717