Determination of Edible Film Permeability Coefficients to Water Vapor, Oxygen, and Carbon Dioxide Transmission
Abstract
Edible film is commonly used in the preservation of fresh and minimally processed fruits. The suitability to be used for such purpose mainly determined by its physical characteristics like transmission properties, particularly its permeability to water vapour, oxygen and carbon dioxide. The research was conducted to determine the transmission properties of the edible film made up of low metoxyl pectins (LMP) as a primary component combined with stearic acid at a level of 0.25% v/v. Particular study was made to determine the permeability of the film towards water vapour, oxygen and carbon dioxide at various ranges of temperatures (5 to 28oC) and relative humidities (0 to 80%) examined on the film with thicknesses of 20 – 50 µm. The results indicated that the permeability coefficients of the film varied with transmitted substances. The values were 12.89 – 19.45 g.mm/ (m2.day.kPa) for water vapour, 3.26 – 28 mL.mm/(m2.day.kPa) for oxygen and 149 – 129 mL.mm/(m2.day.kPa) for carbon dioxide.
Key words: LMP-based edible film, permeability coefficients
Downloads
Published
Issue
Section
License
Authors who publish with this journal agree to the following terms:- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal
