In-situ glyoxalization during biosynthesis of bacterial cellulose

Cristina Castro, Nereida Cordeiro, Marisa Faria, Robin Zuluaga, Jean Luc Putaux, Ilari Filpponen, Lina Velez, Orlando J. Rojas, Piedad Gañán

    Producción científica: Contribución a una revistaArtículo en revista científica indexadarevisión exhaustiva

    27 Citas (Scopus)

    Resumen

    A novel method to synthesize highly crosslinked bacterial cellulose (BC) is reported. The glyoxalization is started in-situ, in the culture medium during biosynthesis of cellulose by Gluconacetobacter medellensis bacteria. Strong crosslinked networks were formed in the contact areas between extruded cellulose ribbons by reaction with the glyoxal precursors. The crystalline structure of cellulose was preserved while the acidic component of the surface energy was reduced. As a consequence, its predominant acidic character and the relative contribution of the dispersive component increased, endowing the BC network with a higher hydrophobicity. This route for in-situ crosslinking is expected to facilitate other modifications upon biosynthesis of cellulose ribbons by microorganisms and to engineer the strength and surface energy of their networks.

    Idioma originalInglés
    Páginas (desde-hasta)32-39
    Número de páginas8
    PublicaciónCarbohydrate Polymers
    Volumen126
    DOI
    EstadoPublicada - 1 ago. 2015

    Nota bibliográfica

    Publisher Copyright:
    © 2015 Elsevier Ltd.

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