Effect of molecular weight reduction by60Co irradiation and polymer concentration in chitosan coating surface properties in relation to the surface properties of red tilapia (oreochromis spp.)

Mario A. García, Alicia Casariego, Cristina Castro, Nilia de la Paz, Manuel Rapado, Robin Zuluaga, Piedad Gañán, Mirna Fernández

    Research output: Chapter in Book/Report/Conference proceedingBook chapter as a result of researchpeer-review

    Abstract

    This research assessed the effect of 60Co irradiation and polymer concentration on the wettability of coating-forming solutions (CFS) of chitosan as function of the surface properties of red tilapia (Oreochromis spp.), showing the utility of wettability in the optimization of the CFS formulation. The wettability of red tilapia skin, a low energy surface, was estimated by the Zisman’s method. The red tilapia skin presented a surface tension of 84.26 mN/m, with polar and dispersive components of 81.92 and 2.34 mN/m, respectively. The value of critical surface tension was 84.09 mN/m. The rise of irradiation doses increased the wettability coefficient. The optimum value of the spreading coefficient (-2.6 mN/m) was achieved with CFS at 1.5% (w/v) of chitosan irradiated at 50 kGy and 0.1% of Tween 80 (v/v). Important information about the application of CFS on fish have been obtained, which possibly might contribute in the improvement of their durability.

    Original languageEnglish
    Title of host publicationNatural Polymers
    Subtitle of host publicationDerivatives, Blends and Composites
    PublisherNova Science Publishers, Inc.
    Pages103-118
    Number of pages16
    Volume2
    ISBN (Electronic)9781536104400
    ISBN (Print)9781536104264
    StatePublished - 1 Jan 2017

    Bibliographical note

    Publisher Copyright:
    © 2017 Nova Science Publishers, Inc.

    Keywords

    • Biodegradable coating
    • Chitosan
    • Irradiation
    • Oreochromis spp
    • Red tilapia
    • Surface properties

    Fingerprint

    Dive into the research topics of 'Effect of molecular weight reduction by60Co irradiation and polymer concentration in chitosan coating surface properties in relation to the surface properties of red tilapia (oreochromis spp.)'. Together they form a unique fingerprint.

    Cite this