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Active wrapping paper against mango anthracnose fungi and its releasing profiles.
- Source :
- Packaging Technology & Science; Jun2018, Vol. 31 Issue 6, p421-431, 11p
- Publication Year :
- 2018
-
Abstract
- Active wrapping papers varied in bio-based coating materials (chitosan and carboxymethyl cellulose) and vanillin concentrations (0.5%, 1.0%, 2.0%, and 4.0% (w/v)) were prepared to study their antifungal effects and release properties. Chitosan-coated paper with 1% (w/v) vanillin gave the best inhibition against mycelial growth of mango anthracnose fungi and could inhibit its conidiospores germination. The release of vanillin from a chitosan-coated paper under different conditions of temperatures (13°C, 25°C, and 37°C), relative humidity (RH) (75%, 86%, and 96% RH), and pH values (pH 3.8, 5.2, and 6.2) was studied. Moreover, the vanillin release from the paper to mango fruit under an actual commercial storage condition (13°C, 90% RH) was also investigated. The predominant mechanism of vanillin release under low temperatures (13-25°C) and all RH studied was a Fickian diffusion, whereas the high temperature (37°C) and in all buffers varying pH showed a non-Fickian behaviour. Increasing temperature and RH enhanced in diffusion coefficient (D value) from 78.24 × 10<superscript>-10</superscript> to 162.10 × 10<superscript>-10</superscript> cm<superscript>2</superscript>/s and 42.87 × 10<superscript>-10</superscript> to 59.98 × 10<superscript>-10</superscript> cm<superscript>2</superscript>/s, respectively. Meanwhile, the increasing pH value reduced the D value from 233.87 × 10<superscript>-10</superscript> to 122.74 × 10<superscript>-10</superscript> cm<superscript>2</superscript>/s. The kinetic of vanillin release under an actual wrapping application exhibited a non-Fickian behaviour, and the D value was considerably low (approximately 65.36 × 10<superscript>-12</superscript> cm<superscript>2</superscript>/s). The developed active wrapping paper can be great interest for food industry and is practically reasonable for postharvest mango fruits. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 08943214
- Volume :
- 31
- Issue :
- 6
- Database :
- Complementary Index
- Journal :
- Packaging Technology & Science
- Publication Type :
- Periodical
- Accession number :
- 129852192
- Full Text :
- https://doi.org/10.1002/pts.2370