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The feasibility of coating by cooling crystallization on ibuprofen naked tablets

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Abstract

Sugar spray coating is a frequently used process in the pharmaceutical industry. However, this process presents the disadvantage to form an amorphous coating around the active ingredient. A crystalline coating formed on the surface of a tablet is highly desirable. Recently, a new process of coating by cooling crystallization has been developed and applied on bisacodyl pastilles obtained by melt crystallization. In this work, we investigated the feasibility of coating by cooling crystallization on ibuprofen “naked tablets” manufactured by compression. In the first part of this work, the solubility and the metastable zone width have been determined experimentally for the coating solution because they are essential factors for any crystallization process. In the second part, the coating process is investigated on the operating conditions that affect the surface morphology and the crystal growth rate. These experimental conditions include concentration of the coating solution, degree of sub-cooling, agitation speed, retention time, and surface properties of the naked ibuprofen tablets. The results show that naked tablet coating by cooling crystallization is feasible and can be applied in the pharmaceutical industry.

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Acknowledgements

The authors are grateful to Nadpharmadic production Laboratory, for providing the sample of ibuprofen naked tablets. One of the authors is grateful to Martin Luther University Halle-Wittenberg, Center for Engineering, Thermal Process Engineering to host her and for the experimental support. She would also like to acknowledge the financial support of University Constantine 3 scholarship.

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Authors and Affiliations

  1. Engineering Faculty of Pharmaceutical Processes, University Constantine 3, 25000, Constantine, Algeria

    Fatima Mameri, Ouahiba Koutchoukali, Mohamed Bouhelassa & Leila Nemdili

  2. Center of Engineering Science, Thermal Process Engineering, Martin Luther University Halle-Wittenberg, D-06099, Halle, Germany

    Anne Hartwig & Joachim Ulrich

Authors
  1. Fatima Mameri
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  2. Ouahiba Koutchoukali
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  3. Mohamed Bouhelassa
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  4. Anne Hartwig
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  5. Leila Nemdili
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  6. Joachim Ulrich
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Corresponding authors

Correspondence to Fatima Mameri or Ouahiba Koutchoukali.

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Mameri, F., Koutchoukali, O., Bouhelassa, M. et al. The feasibility of coating by cooling crystallization on ibuprofen naked tablets. Front. Chem. Sci. Eng. 11, 211–219 (2017). https://doi.org/10.1007/s11705-017-1619-1

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  • DOI: https://doi.org/10.1007/s11705-017-1619-1

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