Antimicrobial seafood packaging: a review

Singh, Suman; Lee, Myung ho; Park, lnsik; Shin, Yangjai; Lee, Youn Suk

doi:10.1007/s13197-016-2216-x

Cited by 72 publications

(31 citation statements)

References 76 publications

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“…However, this also provides a potential vulnerability to Campylobacter that can be exploited for the development of antimicrobials and for novel approaches for its control in the food chain. Zn(II) has been used as an antimicrobial, for example in food packaging [ 53 ], as well as in animal (including poultry) feeds to promote growth and to restrict the proliferation of pathogenic bacteria in the gut [ 54 , 55 ]. Indeed, feeding piglets high dosage Zn(II) oxide causes a significant reduction in their faecal excretion of Campylobacter coli [ 56 ].…”

Section: Discussionmentioning

confidence: 99%

RNA-based thermoregulation of a Campylobacter jejuni zinc resistance determinant

et al. 2020

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RNA thermometers (RNATs) trigger bacterial virulence factor expression in response to the temperature shift on entering a warm-blooded host. At lower temperatures these secondary structures sequester ribosome-binding sites (RBSs) to prevent translation initiation, whereas at elevated temperatures they “melt” allowing translation. Campylobacter jejuni is the leading bacterial cause of human gastroenteritis worldwide yet little is known about how it interacts with the host including host induced gene regulation. Here we demonstrate that an RNAT regulates a C . jejuni gene, Cj1163c or czcD , encoding a member of the Cation Diffusion Facilitator family. The czcD upstream untranslated region contains a predicted stem loop within the mRNA that sequesters the RBS to inhibit translation at temperatures below 37°C. Mutations that disrupt or enhance predicted secondary structure have significant and predictable effects on temperature regulation. We also show that in an RNAT independent manner, CzcD expression is induced by Zn(II). Mutants lacking czcD are hypersensitive to Zn(II) and also over-accumulate Zn(II) relative to wild-type, all consistent with CzcD functioning as a Zn(II) exporter. Importantly, we demonstrate that C . jejuni Zn(II)-tolerance at 32°C, a temperature at which the RNAT limits CzcD production, is increased by RNAT disruption. Finally we show that czcD inactivation attenuates larval killing in a Galleria infection model and that at 32°C disrupting RNAT secondary structure to allow CzcD production can enhance killing. We hypothesise that CzcD regulation by metals and temperature provides a mechanism for C . jejuni to overcome innate immune system-mediated Zn(II) toxicity in warm-blooded animal hosts.

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Section: Discussionmentioning

confidence: 99%

RNA-based thermoregulation of a Campylobacter jejuni zinc resistance determinant

et al. 2020

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“…Ethylene produces physiological responses, for example geotropism, ripening, senescence, dormancy and flowering (Singh et al 2018a, b, c, d). The low concentration edge required for triggering physiological activities validates that reducing ethylene in a closed atmosphere can help the postharvest durability of fresh produce (Bailén et al 2006;Gaikwad et al 2017b), apart from these postharvest losses and quality deterioration of fruits and vegetables mostly caused by the ripening process induced by ethylene and contamination due to micro-organisms (Singh et al 2016b). Active packaging prevents the adverse effects of ethylene gas and prevents microbial growth.…”

Section: Introductionmentioning

confidence: 97%

Ethylene scavengers for active packaging of fresh food produce

Singh²,

2019

Self Cite

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Many fruits and vegetables are sensitive to ethylene, which upon prolonged exposure induces the deterioration of food quality, such as change in taste, odour and colour, or microbial growth. Therefore, ethylene scavengers in packages can be used to limit ethylene accumulation. Ethylene scavengers extend the shelf life and retain the original food quality. Here, we review ethylene scavenging systems such as potassium carbonate, palladium, natural clays, titanium dioxide-based, electrondeficient dienes and trienes. Ethylene scavenging is done by chemical reactions and physical adsorption. We then discuss the applications and benefits of ethylene scavengers in packages. The efficiency of ethylene scavengers is improved using atmospheric packaging tools.

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“…Edible films need to possess the appropriate mechanical properties and barrier properties from initial product packing to final consumer usage [11,12]. Meanwhile, the materials obtained from renewable natural sources that were used to prepare edible films mainly include proteins, lipids, polysaccharides, and their possible combinations [13,14].…”

Section: Introductionmentioning

confidence: 99%

Scale-Up Preparation and Characterization of Collagen/Sodium Alginate Blend Films

Wang

2017

Journal of Food Quality

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In an effort to produce scale-up of edible films, collagen-based films including different amounts of sodium alginate (CS) were prepared by casting method. Films were characterized based on their rheological, thermal, and mechanical properties, water vapor permeability (WVP), and oxygen permeability (OP). The microstructures were also evaluated by scanning electron microscopy (SEM), atomic force microscopy (AFM), and Fourier transform-infrared spectroscopy (FTIR). Furthermore, the addition of sodium alginate effectively improved the viscosity and thermal stability, significantly increased TS, and decreased and WVP ( < 0.05), but with no obvious effect on OP ( > 0.05). SEM and AFM showed homogeneous matrix, with no signs of phase separation in the blends. Overall, films (CS2) produced using collagen (g) : sodium alginate (g) = 10 : 2 showed suitable rheological property (apparent viscosity was 4.87 m Pa s −1 ) and better TS (26.49 Mpa), (64.98%), WVP (1.79 × 10 −10 g⋅cm −1 ⋅s −1 ⋅Pa −1 ), and OP (3.77 × 10 −5 cm 3 ⋅m −2 ⋅d −1 ⋅Pa −1 ).

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Antimicrobial seafood packaging: a review

Cited by 72 publications

References 76 publications

RNA-based thermoregulation of a Campylobacter jejuni zinc resistance determinant

RNA-based thermoregulation of a Campylobacter jejuni zinc resistance determinant

Ethylene scavengers for active packaging of fresh food produce

Scale-Up Preparation and Characterization of Collagen/Sodium Alginate Blend Films

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