Abstract
Purpose of work
Undecylprodigiosin has antimicrobial, immunosuppressive and anticancer properties. Pure cultures of Streptomyces coelicolor produce only low concentrations of undecylprodigiosin. We have therefore sought to increase this by interacting the cells with a bacterium.
When interacted with live or heat-killed cells of Bacillus subtilis, Streptomyces coelicolor A3 (2), increased undecylprodigiosin production in shake-flasks and in a 2 l bioreactor. An inoculum of 2.5% (v/v) B. subtilis containing 108 cells/ml added at the beginning of the S. coelicolor culture gave the best results for undecylprodigiosin production. In the shake-flasks, the increase was 175–211% and in the bioreactor, 256% in comparison to the pure cultures of S. coelicolor.
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Acknowledgments
We would like to acknowledge the financial support from The Ministry of Higher Education and Scientific Research of Iraq for Khalid Jaber Kadhum Luti. We would also like to thank Vandana Bhatt for the preliminary tests on microbial interactions.
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Luti, K.J.K., Mavituna, F. Streptomyces coelicolor increases the production of undecylprodigiosin when interacted with Bacillus subtilis. Biotechnol Lett 33, 113–118 (2011). https://doi.org/10.1007/s10529-010-0401-y
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DOI: https://doi.org/10.1007/s10529-010-0401-y