Chitosan-coated paper: Effects of nisin and different acids on the antimicrobial activity
| Autor: | Heikki Kulonen, Marjaana Rättö, Eija Skyttä, Raija Ahvenainen, Rose Motion, Jari Vartiainen |
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| Rok vydání: | 2004 |
| Předmět: |
chemistry.chemical_classification
Coated paper Materials science Polymers and Plastics biology technology industry and agriculture macromolecular substances General Chemistry Bacillus subtilis Polymer equipment and supplies biology.organism_classification Antimicrobial Gloss (optics) Surfaces Coatings and Films Lactic acid Chitosan chemistry.chemical_compound chemistry Polymer chemistry Materials Chemistry Nisin Nuclear chemistry |
| Zdroj: | Journal of Applied Polymer Science. 94:986-993 |
| ISSN: | 0021-8995 |
| DOI: | 10.1002/app.20701 |
| Popis: | Chitosan coatings prominently improved both the gloss and oxygen barrier properties of paper. The gloss value in the machine direction was increased as a function of added chitosan. An oxygen-permeability value of 1.1 cm3/m2 d was obtained when 6.9 g/m2 chitosan was applied to 80 g/m2 copy paper. In addition, the effects on the mechanical properties were positive, but not significant. The water-vapor permeability of the paper increased as a result of the chitosan coating. Chitosan dissolved in 1.6, 3.2, and 6.4% lactic acid showed antimicrobial activity against Bacillus subtilis, whereas acetic and propionic acids (1.6, 3.2, and 6.4%) did not produce any notable activity. Nisin (0.08 g/L) did not enhance the antimicrobial activity of coatings prepared from chitosan dissolved in different acids. © 2004 Wiley Periodicals, Inc. J Appl Polym Sci 94: 986–993, 2004 |
| Databáze: | OpenAIRE |
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