IDEAS home Printed from https://ideas.repec.org/a/ags/aesjfr/405038.html

Influence of Glassy or Rubbery State on the Antimicrobial Activity of Chitosan-gelatin Films

Author

Listed:
  • Cofré, Daniela
  • Azócar, Manuel
  • Enrione, Javier
  • Páez, Maritza
  • Matiacevich, Silvia

Abstract

The aim was to study if the antimicrobial activity of chitosan incorporated into edible films based on gelatin could be affected by the molecular mobility (glassy or rubbery state) of the matrix. Films were obtained from film-forming suspensions (FFS) of bovine and salmon gelatins (7% w/w) and chitosan (0; 0.25; 0.5; 1% w/w) equilibrated at 33% y 85% of relative humidities. Antimicrobial properties against Escherichia coli, Listeria monocytogenes and Salmonella thyphimurium were determined. The results showed that both FFS and films had antimicrobial effects related to chitosan concentration. This besides depended on their glass and rubber film state, being in the initially glassy state for salmon 66% higher than bovine in comparison to the rubbery state (8%). This was mainly due to the highest moisture uptake (1.82±0.02% water absorbed/min) for glassy state. Therefore, the molecular mobility of the matrix film affected the antimicrobial activity of chitosan in chitosan-gelatin films.

Suggested Citation

  • Cofré, Daniela & Azócar, Manuel & Enrione, Javier & Páez, Maritza & Matiacevich, Silvia, 2012. "Influence of Glassy or Rubbery State on the Antimicrobial Activity of Chitosan-gelatin Films," Journal of Food Research, Canadian Center of Science and Education, vol. 1(4).
    • Handle: RePEc:ags:aesjfr:405038
    as

    Download full text from publisher

    File URL: https://ageconsearch.umn.edu/record/405038/files/20931-71717-1-PB.pdf
    Download Restriction: no
    ---><---

    More about this item

    Keywords

    ;

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:ags:aesjfr:405038. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: AgEcon Search (email available below). General contact details of provider: https://www.ccsenet.org/ .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.