Characterization and antimicrobial activity studies of polypropylene films with carvacrol and thymol for active packaging

Ramos, Marina; Jiménez, Alfonso; Peltzer, Mercedes Ana; Garrigós, María Carmen

doi:10.1016/j.jfoodeng.2011.10.031

Cited by 351 publications

(309 citation statements)

References 46 publications

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“…In this report, the kind of polymer chain and pH affects the release of antimicrobial MOEO compounds due to many factors such as electrostatic interactions, osmosis, structural changes, and environmental conditions [7,32].…”

Section: Resultsmentioning

confidence: 99%

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Effect of pH and Mexican Oregano (Lippia berlandieri Schauer) Essential Oil Added to Carboxymethyl Cellulose and Starch Edible Films on Listeria monocytogenes and Staphylococcus aureus

Navarro-Cruz

Ochoa‐Velasco

Caballero-Alvarez

et al. 2018

Journal of Food Quality

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e aim of this work was to evaluate the e ect of pH and Mexican oregano essential oil (MOEO) added to carboxymethyl cellulose (CMC) and starch (S) edible lms on Listeria monocytogenes and Staphylococcus aureus. CMC and S edible lms were formulated with di erent concentrations (0%, 0.25%, 0.50%, 0.75%, and 1%) of MOEO at di erent pH (5, 6, or 7). Antimicrobial assay was performed. Inhibition curves were tted to the Fermi model. Signi cant di erences (p < 0.05) were found in t c (time to reduce 50% of microbial population) and a (slope of the curve around t c ), being lower at acidic pH. For L. monocytogenes, CMC lms exhibited a higher antimicrobial e ectiveness (0.50% of MOEO) compared to S lms which need a higher concentration of MOEO (0.75%). S. aureus was inhibited with CMC lms at 0.50% MOEO and pH 5 and 6. Microbial modeling has allowed estimating key intrinsic factors as pH and MOEO concentration with the synergistic e ect against two important food-borne pathogens.

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Section: Resultsmentioning

confidence: 99%

“…Carvacrol (5-isopropyl-2-methylphenol) and thymol (2-isopropyl-5-methylphenol) are the major components of the essential oils of some species belonging to the Lamiaceae family including oregano, and these are phenolic compounds; isomers of monoterpenes exhibit signi cant antimicrobial activity in vitro [6,7].…”

Section: Introductionmentioning

confidence: 99%

Effect of pH and Mexican Oregano (Lippia berlandieri Schauer) Essential Oil Added to Carboxymethyl Cellulose and Starch Edible Films on Listeria monocytogenes and Staphylococcus aureus

Navarro-Cruz

Ochoa‐Velasco

Caballero-Alvarez

et al. 2018

Journal of Food Quality

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“…Authors discussed the addition of antimicrobials and their influence in permeability to gases by changing their solubility or due to the creation of pinholes in the packaging structure depending on the chemical structure of the antimicrobial agent 101 . In addition, some modifications in crystallinity and glass transition temperatures were observed 19 . Scanning electron microscopy studies helped to explain structural modifications induced by the incorporation of additives to these polymer matrices, by detecting formation of pores, thereby influencing the tensile and gas barrier properties of the film 102 .…”

Section: Active Compoundsmentioning

confidence: 99%

Use of herbs, spices and their bioactive compounds in active food packaging

et al. 2015

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The increasing interest and society demand on the use of natural, biodegradable and renewable resources has increased in the last few years. In addition, food producers and consumers have improved their requirements in the quality of processed food, particularly in the field of increasing shelf-life while preserving organoleptic and nutritional properties. This review aims to present the last published work in this area.

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“…A presença de agentes tensoativos ou outros aditivos, utilizados para incorporar de forma eficiente o material no interior da matriz polimérica, pode também afetar a difusividade ou a solubilidade de permeantes [5] . A adição de carvacrol e timol ao polipropileno (PP), por exemplo, modificaram nos filmes a barreira ao oxigênio e as propriedades mecânicas [6] e a adição de glicerol melhorou a dispersão de amido de arroz em polietileno de baixa densidade (PEBD) e, consequentemente, as suas propriedades de tração [7] . Diante disso, é necessário mensurar as possíveis alterações geradas no que tange às propriedades físicas, mecânicas e de barreira [8] .…”

Section: Introductionunclassified

Filme ativo de acetato de celulose incorporado com nanosuspensão de curcumina

et al. 2017

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ResumoAs embalagens ativas podem liberar substâncias para inibir a microbiota e as reações na superfície dos alimentos. Dentre essas substâncias a curcumina pode ser usada pois apresenta atividade antimicrobiana e antioxidante. A difusão de compostos ativos em filmes de acetato de celulose pode ser estendida por longos períodos a taxa controlada. Sua adição pode afetar as propriedades mecânicas e de barreira dos filmes, tornando-se necessário mensurar estas alterações. Assim, objetivou-se preparar filmes ativos de acetato de celulose e tween 80 incorporados com mistura simples de curcumina e nanosuspensão de curcumina e avaliar cor, propriedades mecânicas, permeabilidade ao CO 2 e migração do componente ativo. A curcumina influenciou as características mecânicas, ópticas e não afetou a permeabilidade dos filmes. O tween 80 favoreceu a migração da curcumina e a redução do tamanho das partículas não aumentou a migração de curcumina. Palavras-chave: curcumina, embalagem ativa, migração, nanosuspensão. AbstractActive packaging can release substances to inhibit microbiota and reactions on the surface of foods; among these substances, curcumin can be applied for its antimicrobial and antioxidant activity. The diffusion of active compounds in cellulose acetate films can be extended for long periods at controlled rate. The addition may affect the mechanical and barrier properties of films, requiring the measurement of the alterations. The purpose of this study was to prepare active films of cellulose acetate and tween 80 incorporated with a simple mixture of curcumin and curcumin nanosuspension as well as assess color, mechanical properties, permeability to CO 2 and migration of the active component. Curcumin influenced the mechanical and optical characteristics of the films but had no effect on the permeability to CO 2 . Tween 80 favored the migration, and the reduction in particles size did not increase the migration of curcumin.

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Characterization and antimicrobial activity studies of polypropylene films with carvacrol and thymol for active packaging

Cited by 351 publications

References 46 publications

Effect of pH and Mexican Oregano (Lippia berlandieri Schauer) Essential Oil Added to Carboxymethyl Cellulose and Starch Edible Films on Listeria monocytogenes and Staphylococcus aureus

Effect of pH and Mexican Oregano (Lippia berlandieri Schauer) Essential Oil Added to Carboxymethyl Cellulose and Starch Edible Films on Listeria monocytogenes and Staphylococcus aureus

Use of herbs, spices and their bioactive compounds in active food packaging

Filme ativo de acetato de celulose incorporado com nanosuspensão de curcumina

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