Evaluation of the Physicochemical Properties and Antimicrobial Activities of Bioactive Biodegradable Films

Khalil, Mohamed A.; Ahmed, Zahra S.; Elnawawy, Aml S.

doi:10.12816/0000259

Cited by 10 publications

(7 citation statements)

References 31 publications

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“…[19] The a and b isomers of pinene are used to manufacture a number of products for the pharmaceutical and chemical industries. [19] The a and b isomers of pinene are used to manufacture a number of products for the pharmaceutical and chemical industries.…”

Section: Composition Of the Essential Oilsmentioning

confidence: 99%

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Variation in Chemical Composition and Antibacterial Activity of the Essential Oil of Wild Populations of Phlomis olivieri

Bajalan

Rouzbahani

Pirbalouti

et al. 2017

Chemistry & Biodiversity

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Various species of the genus Phlomis have been reported to produce metabolites demonstrating significant pharmacological efficiency. In this study, the essential oils from twelve populations of Phlomis olivieri collected from natural habitats were investigated for their chemical components. The hydrodistillated essential oil analyzed by GC-FID and GC/MS. Analyses revealed 27 compounds, constituting 90.52 - 98.51% of the essential oils. Results indicated that the major components of the essential oils from various populations of P. olivieri were germacrene D (26.54 - 56.41%), bicyclogermacrene (6.38 - 30.55%), β-caryophyllene (5.32 - 24.52%) and α-pinene (1.29 - 15.53%). Principal component analyses (PCA) was used to identify any geographical variations in essential oil composition. Notably, three groups of Iranian P. olivieri populations were determined according to the major compounds. Results of the in vitro antibacterial activity indicated that P. olivieri essential oils showed good inhibitory activities against bacteria, especially Bacillus subtilis. The results of this study gave new insights for cultivation and industrial uses of P. olivieri in Iran.

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Section: Composition Of the Essential Oilsmentioning

confidence: 99%

“…[19] The a and b isomers of pinene are used to manufacture a number of products for the pharmaceutical and chemical industries. [19] Sesquiterpene skeletal diversity arises from the action of a number of sesquiterpene synthases enzymes. [20] a-Pinene is an alkene, contains a reactive four-membered ring.…”

Section: Composition Of the Essential Oilsmentioning

confidence: 99%

Variation in Chemical Composition and Antibacterial Activity of the Essential Oil of Wild Populations of Phlomis olivieri

Bajalan

Rouzbahani

Pirbalouti

et al. 2017

Chemistry & Biodiversity

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“…Active packaging is an innovative concept in which the package, the product, and the environment interact to prolong the shelf‐life, enhance safety, or improve sensory properties, while maintaining the stability and quality of the product (Khalil and others ). This concept, which is of special importance in the area of fresh and extended shelf‐life foods (Marcos and others ), has benefited recently by the use of nanotechnology materials, including nanocoatings and nanoparticles (Sekhon ; Li and others ).…”

Section: Introductionmentioning

confidence: 99%

Incorporation of Essential Oils and Nanoparticles in Pullulan Films to Control Foodborne Pathogens on Meat and Poultry Products

Morsy

Khalaf

Sharoba

et al. 2014

Journal of Food Science

174

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The incorporation of essential oils and nanotechnology into edible films has the potential to improve the microbiological safety of foods. The aim of this study was to evaluate the effectiveness of pullulan films containing essential oils and nanoparticles against 4 foodborne pathogens. Initial experiments using plate overlay assays demonstrated that 2% oregano essential oil was active against Staphylococcus aureus and Salmonella Typhimurium, whereas Listeria monocytogenes and Escherichia coli O157:H7 were not inhibited. Two percent rosemary essential oil was active against S. aureus, L. monocytogenes, E. coli O157:H7, and S. Typhimurium, when compared with 1%. Zinc oxide nanoparticles at 110 nm were active against S. aureus, L. monocytogenes, E. coli O157:H7, and S. Typhimurium, when compared with 100 or 130 nm. Conversely, 100 nm silver (Ag) nanoparticles were more active against S. aureus than L. monocytogenes. Using the results from these experiments, the compounds exhibiting the greatest activity were incorporated into pullulan films and found to inhibit all or some of the 4 pathogens in plate overlay assays. In challenge studies, pullulan films containing the compounds effectively inhibited the pathogens associated with vacuum packaged meat and poultry products stored at 4 °C for up to 3 wk, as compared to control films. Additionally, the structure and cross-section of the films were evaluated using electron microscopy. The results from this study demonstrate that edible films made from pullulan and incorporated with essential oils or nanoparticles may improve the safety of refrigerated, fresh or further processed meat and poultry products.

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“…In edible film production, the incorporation of a certain additive is possible to form an advanced system called active packaging [62]. The additive compound enhances shelf-life and stability of the product, as well as improves its microbiological safety and sensory attributes [63]. The following additives can be used in edible films: flavouring agents, spices, antimicrobial substances, antioxidants, pigments, light absorbers, salts, etc.…”

Section: Resultsmentioning

confidence: 99%

Cheese whey as potential resource for antimicrobial edible film and active packaging production

Dinika

Lara

2019

Foods and Raw Materials

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Many cheese manufacturers still have not utilized cheese whey that damages to the environment as it is directly been drained into waters. Cheese whey can be used as active packaging material to prolong the shelf-life of food products. Fermented cheese whey contains bioactive peptides which are able to improve the functional properties of cheese whey as an antimicrobial agent. The combination of cheese whey with polysaccharides, lipid, and other additional ingredients can improve the physical characteristics of the active packaging in the form of edible film. Around 20-45% of plasticizer will expose the film formed. Cheese whey with agro-industrial waste starch-based formulation can be used as an alternative way to produce an antimicrobial edible film as an active packaging. The film has shown acceptable physical characteristics and high antimicrobial activity, which makes it possible to extend the shelf life of food products. An advanced process, for example, the use of transglutaminase enzyme and Candida tropicalis mutant, is also effective. The result of that is the formation of the essential compound which can improve the active packaging quality. The utilisation of cheese whey and agro-industrial waste based on starch contributes significantly to the environmental conservation.

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Evaluation of the Physicochemical Properties and Antimicrobial Activities of Bioactive Biodegradable Films

Cited by 10 publications

References 31 publications

Variation in Chemical Composition and Antibacterial Activity of the Essential Oil of Wild Populations of Phlomis olivieri

Variation in Chemical Composition and Antibacterial Activity of the Essential Oil of Wild Populations of Phlomis olivieri

Incorporation of Essential Oils and Nanoparticles in Pullulan Films to Control Foodborne Pathogens on Meat and Poultry Products

Cheese whey as potential resource for antimicrobial edible film and active packaging production

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