Antimicrobial nanocomposite films made of poly(lactic acid)–cellulose nanocrystals (PLA–CNC) in food applications—part B: effect of oregano essential oil release on the inactivation of Listeria monocytogenes in mixed vegetables

Salmieri, Stéphane; Islam, Farhana; Khan, Ruhul A.; Hossain, Faruk; Ibrahim, Haytham M. M.; Miao, Chuanwei; Hamad, Wadood Y.; Lacroix, Monique

doi:10.1007/s10570-014-0406-0

Cited by 143 publications

(50 citation statements)

References 65 publications

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“…Several biopolymer‐based packaging materials such as polysaccharides, proteins, and lipids or combinations of these components have worldwide acceptability due to their vast diversity to replace synthetic plastics materials (Kumar, Kaur, & Bhatia, ). Biopolymers such as chitosan (CH), methyl cellulose (MC), and polylactic acid (PLA) reinforced with cellulose nanocrystal (CNC) are potential bio‐based packaging materials for development of diffusion systems with enhanced physical and biological properties (Khan, Huq, Khan, Riedl, & Lacroix, ; Salmieri et al., ), but their application against rice weevil has never been demonstrated.…”

Section: Introductionmentioning

confidence: 99%

Synergistic Effects of Nanocomposite Films Containing Essential Oil Nanoemulsions in Combination with Ionizing Radiation for Control of Rice Weevil Sitophilus oryzae in Stored Grains

Hossain

Follett

Salmieri

et al. 2019

Journal of Food Science

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The fumigant toxicity of eight individual essential oils (EOs; basil, cinnamon, eucalyptus, mandarin, oregano, peppermint, tea tree, and thyme) and one binary combination (thyme and oregano) for control of the rice weevil, Sitophilus oryzae, were investigated. In bioassays, all individual and combined EOs were toxic to the rice weevil. Eucalyptus EO exhibited the highest toxicity among the individual EO treatments, causing 100% mortality at a minimum concentration of 0.8 µL/mL after 24 hr of exposure. The combination treatment of oregano and thyme EO displayed higher fumigant activity than the individual oregano or thyme treatments. A stable oil‐in‐water nanoemulsion was evaluated using high‐pressure homogenization (microfluidization [MF]) and varying the pressure and number of cycles. The droplet size of the emulsions was found to decrease from 217 to 71 nm and encapsulation efficiency increased from 37% to 84% with increasing MF pressure and number of cycles. The optimum conditions for preparing the mixture of oregano and thyme EO nanoemulsions were evaluated to be homogenization pressure of 103 MPa and three cycles. Incorporating an oregano:thyme nanoemulsion (0.75%) into cellulose nanocrystal (CNC) containing chitosan (CH/CNC), methyl cellulose (MC/CNC), and polylactic acid (PLA/CNC) composite films resulted in extended diffusion matrices causing 32% to 51% rice weevil mortality after 14 days exposure. Irradiation at 200 Gray alone caused 79% mortality and increased to 100% when combined with the bioactive chitosan film containing the oregano:thyme nanoemulsion. Practical Application A binary combination of oregano:thyme has potential as a biopesticide against stored product pests. The encapsulation of EO nanoemulsions into biopolymeric support could be used for bioactive packaging to prevent food spoilage and extend shelf life. Combining bioactive films with irradiation can provide complete control of rice weevil in packaged rice. The system developed in this research may also be extended to explore other food‐packaging films with various food models to control different types of stored pests.

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Section: Introductionmentioning

confidence: 99%

Synergistic Effects of Nanocomposite Films Containing Essential Oil Nanoemulsions in Combination with Ionizing Radiation for Control of Rice Weevil Sitophilus oryzae in Stored Grains

Hossain

Follett

Salmieri

et al. 2019

Journal of Food Science

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“…A microbiological analysis of mixed vegetables inoculated with Listeria monocytogenes indicated that PLA-CNC-oregano films induced a quasi-total inhibition of bacteria in vegetables, therefore demonstrating a strong antimicrobial capacity in situ. 17 Antibacterial PLA films for food packaging have been obtained by grafting with allyl isothiocyanate. 18 Silver/PLA nanocomposites 19 with very high concentrations of silver NPs (8, 16 and 32 wt.%) have demonstrated antimicrobial activity against Gram-negative bacteria, Escherichia coli and Vibrio parahaemolyticus, and Gram-positive bacteria, Staphylococcus aureus, being recommended as an antibacterial scaffold for tissue engineering and medical applications.…”

Section: Introductionmentioning

confidence: 99%

Complex poly(lactic acid)-based biomaterial for urinary catheters: II. Biocompatibility

StoleruElena¹,

Bogdanel

Raluca³

et al. 2016

Bioinspired, Biomimetic and Nanobiomaterials

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The present paper is focused on the surface and bulk characterization of poly(lactic acid) (PLA)-based composites that contain hydrolyzed collagen as a biological polymer, silver nanoparticles and vitamin E and epoxidized soybean oil as a plasticizer. The bionanocomposites were obtained by melt processing and evaluated for structural and surface characteristics, biocompatibility, functional properties such as antimicrobial and antioxidant activity and hydrolytic degradation behavior. It has been established that the optimal composition to impart functional properties to the PLA matrix is a formulation containing 15% epoxidized soybean oil, 15% hydrolyzed collagen, 5% Pluronic, 5% vitamin E and 0·3% silver nanoparticles. This bionanocomposite inhibits the growth of both Gram-positive bacteria, Escherichia coli and Salmonella typhimurium, and Gram-negative bacteria, Listeria monocytogenes, and reaches 100% radical-scavenging activity. The PLA-based biomaterials obtained in this study are stable in biological media in the short and medium terms and therefore are recommended as multifunctional biomaterials for the manufacture of medical devices, such as urinary catheters.

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“…Water and oxygen have been reported as difficult to control; the addition of substances capable of reducing the microbial growth is a well-established strategy in food packaging. Several compounds have been used to decrease the microbial growth in food packaging, including organic acids, enzymes, bacteriocins, chelating agents, radical scavengers, and antioxidants (Salmieri et al 2014;Cinelli et al 2014;Shojaee-Aliabadi et al 2013;Feng et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Antimicrobial activity of sugar beet lignocellulose films containing tung oil and cedarwood essential oil

Shen

Kamdem

2015

Cellulose

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Several studies have been reported on the use of cellulose, lignocellulose, chitin and other biological macromolecules for food packaging. One of the major drawbacks limiting their wide uses is their limited antimicrobial and water vapor barrier properties. In this study, cedarwood (Thuja occidentalis) essential oil (CWO), known to contain terpenes, polyphenols and tung oil, known to contain fatty acids, were used as additives to improve water vapor barrier, antimicrobial, and physical properties of laboratory cast lignocellulose films. Physicochemical and mechanical properties were tested to evaluate the impact of the addition of oils in the films formulations. The addition of 15 % CWO and tung oils improved water vapor permeability by more than 25 % as also evidenced by the increase of contact angle between water and film by 134 % from 38.98°to 89.36°with 15 % tung oil. FTIR was used to monitor the presence of hydrophobic groups at 1463 and 1741 cm -1 from the oil on the film spectra confirming the improvement of film hydrophobicity from oils interactions. However, the addition of 15 % hydrophobic oils promoted a significant decrease in tensile properties of films (p B 0.05) by 40 % for CWO and 32 % for tung oil, respectively, due to a partial incompatibility between hydrophilic lignocellulose and hydrophobic oils. The use of a tailored coupling agent to reduce the incompatibility and to improve the load charge transfer between hydrophobic and hydrophilic group might reduce the decrease of the tensile properties with the addition of hydrophobic compounds. No significant difference (p [ 0.05) was observed on the thermal stability of films using TGA. The antimicrobial effects of lignocellulose films against bacteria namely Listeria innocua, Escherichia coli, and Salmonella enterica was tested by disk inhibition zone method and showed an improvement with the addition of 5 % CWO in the film. The Microbe Growth Index of the lignocellulose cellulosic films containing 20 % w/w of CWO decreases by 80 %. CWO and tung oil are good candidates to control microbial growth and water vapor permeability in flexible films. Future work will focus on the olfactory and tensile properties for applications in food packaging.

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Antimicrobial nanocomposite films made of poly(lactic acid)–cellulose nanocrystals (PLA–CNC) in food applications—part B: effect of oregano essential oil release on the inactivation of Listeria monocytogenes in mixed vegetables

Cited by 143 publications

References 65 publications

Synergistic Effects of Nanocomposite Films Containing Essential Oil Nanoemulsions in Combination with Ionizing Radiation for Control of Rice Weevil Sitophilus oryzae in Stored Grains

Synergistic Effects of Nanocomposite Films Containing Essential Oil Nanoemulsions in Combination with Ionizing Radiation for Control of Rice Weevil Sitophilus oryzae in Stored Grains

Complex poly(lactic acid)-based biomaterial for urinary catheters: II. Biocompatibility

Antimicrobial activity of sugar beet lignocellulose films containing tung oil and cedarwood essential oil

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