Application of zein antimicrobial edible film incorporating Zataria multiflora boiss essential oil for preservation of Iranian ultrafiltered Feta cheese

Abstract

Zein based edible film was developed and incorporated with Zataria multiflora boiss essential oil. Mechanical and microbiological characteristics of this biofilms were measured. Increasing concentration of antimicrobial agent in film reduced stretchability, tensile strength and elongation, however increased the thickness and water vapor transmission parameters (P<0.05). Addition of Z. multiflora boiss essential oil, resulted in decreasing the count of viable Salmonella enteritidis, Listeria monocytogenes, Escherichia coli and Staphylococcus aureus in the produced cheese. This investigation concludes that the biofilm containing Z. multiflora boiss essential oil can be highly recommended for packaging of Feta cheese with the improved microbiological and sensory quality. Besides, application of natural plant essential oil has economical and health promoting benefits.

Microstructure and thermal and functional properties of biodegradable films produced using zein

“…Zein offers advantages as a raw material in the production of biomaterials, coatings and plastic applications as it is biodegradable and renewable [2][3][4] . It has been used to develop functional biodegradable packaging [5] , packages with antimicrobial agents [6][7][8][9] , packaging for periodontal biomaterials and substrates for cell culture [10] . Studies with zein have been carried out in respect to the regeneration of osseous tissues [11] , with nanoparticles used to improve the mechanical properties of films [12,13] and edible film to increase the shelf life of pears [14] and macadamia [15] .…”

Application of essential oil of Pistacia atlantica Gum, polypropylene and silica nanoparticles as a new milk packaging

“…According to another study, the antimicrobial film of plant essential oil increased the shelf life of bread (Lotfinia et al., 2018). Ghasemi, Javadi, Moradi, and Khosravi‐Darani (2015) were able to improve the shelf life of cheese up to 70 days by an active film containing essential oil of Zataria multiflora . In our experiment, the antibacterial active packaging used for preserving milk extended the shelf life up to 35 days.…”

Bionanocomposites films applied as active and smart food packaging: A review

“…The inhibitory zone for the concentration up to 15% was found to be 138.87 ± 12.35 mm 2 for E. coli, whereas 157.42 ± 10.95 mm 2 for S. aureus 150 70 days of storage. 167 In a different investigation L. monocytogenes, E. coli, S. enteritidis, and S. aureus, strains associated with contamination of food were picked to assess the antibacterial characteristics. The outcome demonstrated that all of the tested microorganisms were inhibited by adding oil to the zein films.…”

“…There are many studies on the utilization of maize zein as for antibacterial preformed films and consumables. To prevent microbiological spoiling of Feta cheese, Zataria multiflora boiss essential oil was infused into the films of protein by Ghasemi et al This biopreservative ingredient was added to films of corn zein to prevent the growth of L. monocytogenes , E. coli , S. aureus , and S. enteritidis , as well as to lengthen the span of time of cheese for 70 days of storage 167 . In a different investigation L. monocytogenes , E. coli , S. enteritidis , and S. aureus , strains associated with contamination of food were picked to assess the antibacterial characteristics.…”