Application of <i>Gelidium corneum</i> Edible Films Containing Carvacrol for Ham Packages

Lim, Geum-Ok; Hong, Yunkyung; Song, Kyung Bin

doi:10.1111/j.1750-3841.2009.01431.x

Cited by 56 publications

(12 citation statements)

References 23 publications

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“…Incorporating CA into cast polyester films (C-75:25:15-CA) significantly reduced the EM and enhanced stretchability due to the random distribution of the CA molecules between the polymer chains, which increases their free volume, provoking a plasticizing effect and reducing the matrix strength. The plasticizing effect of CA in different polymer matrices has also been reported in neat PHBV films (Requena, Jim enez, Vargas, & Chiralt, 2016a), polypropylene (Ramos, Jim enez, Peltzer, & Garrig os, 2012), alginateeapple puree (Rojas-Graü et al, 2007) or Gelidium Corneum films (Lim, Hong, & Song, 2010). As Jost and Kopitzky (2015) reported, pure PLA films showed significantly higher WVP values than PHBV films ( Table 1).…”

Section: Properties Of the Polyester Blend Monolayer Filmsmentioning

confidence: 52%

Obtaining antimicrobial bilayer starch and polyester-blend films with carvacrol

2018

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Bilayer films using polyester blends (P) and starch (S) were obtained and characterized, incorporating carvacrol as active compound. Carvacrol was incorporated by spraying it between melt blended and compression moulded sheets or through its incorporation into the chloroform P solution used to obtain P cast films. Different PLA-PHBV ratios (75:25 and 65:35) were tested, with and without 15 wt% of PEG1000, whereas the 75:25 ratio with PEG was only used for cast sheets, based on its better overall properties. Mono and bilayers were characterized as to their tensile and water vapour barrier properties and thermal behaviour. Release kinetics of carvacrol in different food simulants and in in vitro antibacterial activity against Listeria innocua and Escherichia coli were also analysed. Incorporating carvacrol by spraying it between the polyester and starch sheets was not effective at retaining the compound in the bilayers. However, the incorporation of carvacrol into cast P films, and the subsequent formation of bilayers with the S sheets, was highly effective at providing practically total carvacrol retention. These active bilayers exhibited highly improved tensile and water vapour barrier capacity with respect to the S monolayer (87% reduction in WVP, 840% increase in elastic modulus) and inhibited the growth of L. innocua and E. coli from both P or S contact sides of bilayers, depending on the internal diffusion of carvacrol through the bilayer and its adequate release of the compound into the culture medium.

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Section: Properties Of the Polyester Blend Monolayer Filmsmentioning

confidence: 52%

Obtaining antimicrobial bilayer starch and polyester-blend films with carvacrol

2018

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“…Interestingly, the results of the present study contrast with those of Rojas‐Grau et al ., who found that 0.1% (w/w) carvacrol incorporated into alginate–apple puree films did not affect the WVP of the resultant films. Furthermore, Lim et al . reported that 0.4–1.0% (w/v) carvacrol actually reduced the WVP of Gelidium corneum film.…”

Section: Resultsmentioning

confidence: 98%

Physico‐Mechanical Properties of Starch‐Based Films Containing Naturally Derived Antimicrobial Agents

et al. 2013

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Thermoplastic starch (TPS) films containing relatively low [0.75 ± 0.08% (w/w)], intermediate [1.08 ± 0.04% (w/w)] and high [3.20 ± 0.29% (w/w)] levels of the antimicrobial (AM) agents carvacrol, linalool and thymol were prepared, and their physico‐mechanical and optical properties were evaluated. Addition of these AM agents to TPS film reduced the tensile strength with increasing AM agent content, with a significant effect observed at the highest AM agent concentration. The Young's modulus and elongation at break increased with increasing AM agent concentration, especially at the highest formulation concentration of AM agent. Films having a low or intermediate formulation concentration of AM agent exhibited no significant effect on their water vapour permeability, transparency and thermal properties when compared to the control film. Although scanning electron microscope imaging suggested a significant and progressive change in the surface morphologies of the films with AM agent concentration, the overall effects on the tested properties were not significant. This suggests that the direct incorporation of AM agents into TPS films did not adversely affect the films, particularly at lower AM agent concentrations. Copyright © 2013 John Wiley & Sons, Ltd.

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“…Much research, on the other hand, has been conducted regarding novel packaging materials, especially biopolymer edible films, that can be applied in food products to increase the shelf-life or enhance food safety, by possessing antimicrobial substances [ 25 , 26 , 27 , 28 , 29 ]. Recent advances in this field include the incorporation of heat-sensitive bioactive materials, one such example being that of probiotic bacteria, although, to the best of our knowledge, there is scarcity of studies [ 9 , 30 , 31 ].…”

Section: Discussionmentioning

confidence: 99%

Alginate-Based Edible Films Delivering Probiotic Bacteria to Sliced Ham Pretreated with High Pressure Processing

Pavli

Kovaiou²,

Apostolakopoulou³

et al. 2017

IJMS

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The aim of the present work was to evaluate the efficacy of Na-alginate edible films as vehicles for delivering probiotic bacteria to sliced ham with or without pretreatment using high pressure processing (HPP). Three strains of probiotic bacteria were incorporated in Na-alginate forming solution. Ham slices (with or without pretreatment using HPP at 500 MPa for 2 min) were packed under vacuum in contact with the films and then stored at 4, 8 and 12 °C for 66, 47 and 40 days, respectively. Microbiological analysis was performed in parallel with pH and color measurements. Sensory characteristics were assessed, while the presence and the relative abundance of each probiotic strain during storage was evaluated using pulsed field gel electrophoresis. In ham slices without HPP treatment, probiotic bacteria were enumerated above 106 CFU/g during storage at all temperatures. Same results were obtained in cases of HPP treated samples, but pH measurements showed differences with the latter ones exhibiting higher values. Sensory evaluation revealed that probiotic samples had a more acidic taste and odor than the control ones, however these characteristics were markedly compromised in samples treated with HPP. Overall, the results of the study are promising since probiotic bacteria were successfully delivered in the products by edible films regardless of the HPP treatment.

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Application of Gelidium corneum Edible Films Containing Carvacrol for Ham Packages

Cited by 56 publications

References 23 publications

Obtaining antimicrobial bilayer starch and polyester-blend films with carvacrol

Obtaining antimicrobial bilayer starch and polyester-blend films with carvacrol

Physico‐Mechanical Properties of Starch‐Based Films Containing Naturally Derived Antimicrobial Agents

Alginate-Based Edible Films Delivering Probiotic Bacteria to Sliced Ham Pretreated with High Pressure Processing

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