Physical, Mechanical, and Antimicrobial Properties of Carboxymethyl Cellulose Edible Films Activated with Artemisia sieberi Essential Oil
Journal Title: Journal of Food Quality and Hazards Control - Year 2020, Vol 7, Issue 1
Abstract
Background: Edible films and coatings are biodegradable that can preserve the quality and extend the shelf life of foods. The aim of this study was to investigate the physical and mechanical properties, and antimicrobial activity of carboxymethyl cellulose (CMC) film containing Artemisia sieberi Essential Oil (AEO). Methods: The studied parameters were the antibacterial activity and physical properties, including Water Vapor Permeability (WVP), Contact Angle (CA), solubility, Moisture Content (MC), and surface color; as well as mechanical properties including Elongation at break% (E%) and Tensile Strength (TS) of CMC incorporated with AEO at levels of 0 (control), 0.5, 1, and 1.5% v/v. Data were statistically analyzed by SPSS software. Results: Camphor (36.38%), 1,8-cineole (15.89%), β-Thujone (6.7%), and camphanone (6.2%) were the main components of AEO. The edible CMC film showed increase in WVP, contact angle, E%, darker color, and yellowness, with decreases in film solubility, MC, and TS after the incorporation of AEO. CMC film with 1.5% of AEO showed the highest a* (greenness) and b* (yellowness) values. The inhibition zones were 9.33, 11.5, and 17.30 mm for Staphylococcus aureus; and 8, 11.50, and 14.33 mm for Escherichia coli at AEO levels of 0.5, 1, and 1.5%, respectively. Conclusion: The overall results of this study showed that CMC films enriched with AEO could be beneficial in food packaging to retard food deterioration.
Authors and Affiliations
F. Salar Behrestaghi, S. Bahram , P. Ariaii
Keywords
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