Abstract
Resin-based, in situ product removal (ISPR) was used to increase production of ε-poly-l-lysine (PL) by Streptomyces sp. GIM8. D152 resin was selected over Amberlite IRC-50, Amberlite IRC-76 and Amberlite IR-120 to develop ISPR using adsorption capacity and desorption ratio as bases. The yield of PL in response to external PL was unaffected in shake-flask culture; however, the production of PL increased to 2.9 from 0.8 g l−1 shake-flasks using ISPR. In a 5 l fermentor, 23.4 g PL l−1 was achieved compared to 3.76 g PL l−1, in the controls by attaching two bags of D152 resin to the probes and baffles of the fermentor.
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Acknowledgments
This work was supported by the Program for Industry-Academia-Research (2009B090300300), the Guangdong-Hongkong Technology Cooperation Funding (2007A020902003), and the Science and Technology Planning Project of Guangdong Province, China (2008A010900003 and 2009B011300004).
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Liu, S., Wu, Q., Zhang, J. et al. Production of ε-poly-l-lysine by Streptomyces sp. using resin-based, in situ product removal. Biotechnol Lett 33, 1581–1585 (2011). https://doi.org/10.1007/s10529-011-0616-6
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DOI: https://doi.org/10.1007/s10529-011-0616-6