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Partial characterization of anEscherichia coll strain harboring a xylanase encoding plasmid

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Summary

The plasmid pRH271, harboring a xylanase gene cioned fromBacilius subtilis, has been transferred into a mutant ofE. coli SK2284 which allowed the release of part of the xylanase in the culture supernatant. Kinetic parameters of this recombinantE. coll strain were determined in microscale batch culture with and without the selective pressure of antibiotics. No significant difference in µmax was observed for the nontransformedE. coli strain when compared to the recombinant strain. However, K5 values for glucose were two times higher in the case of the recombinant strain. Preliminary study of xylanase production in a large batch farmenter was also described.

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Authors and Affiliations

  1. Pulp and Paper Research Institute of Canada, 570 St. John's Boulevard, H9R 3J9, Pointe Claire, Quebec, Canada

    R. Bernier Jr., D. Rho, Y. Arcand & M. Desrochers

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  1. R. Bernier Jr.
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  2. D. Rho
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  3. Y. Arcand
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  4. M. Desrochers
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Bernier, R., Rho, D., Arcand, Y. et al. Partial characterization of anEscherichia coll strain harboring a xylanase encoding plasmid. Biotechnol Lett 7, 797–802 (1985). https://doi.org/10.1007/BF01025557

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