Application of Cold Plasma in Food Packaging

Zhang, Jianhao

doi:10.1007/978-981-16-1827-7_13

Cited by 3 publications

(3 citation statements)

References 35 publications

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“…For instance, roll-to-roll lowpressure gas plasma systems are used in the textile industry for surface activation of textiles (Zille et al 2015). Another growing sector is packaging, particularly food packaging, where plasma, in addition to being used for surface modification, can also provide sterile packaging materials (Pankaj et al 2014;Zhang 2022). Some types of plasma are more challenging to use on an industrial scale.…”

Section: Discussionmentioning

confidence: 99%

Hydrophobisation of lignocellulosic materials part I: physical modification

Rodríguez-Fabià¹,

Torstensen

Johansson³

et al. 2022

Cellulose

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This review is the first part of a comprehensive review of hydrophobisation of lignocellulosic materials. The purpose of this review has been to compare physical hydrophobisation methods of lignocellulosic materials. We have compared molecular physical adsorption with plasma etching and grafting. Adsorption methods are facile and rely upon the simple mixing or coating of the substrate with the hydrophobing agent. However, none of the surfactant-based methods reviewed here reach contact angles above 90°, making them unsuitable for applications where a high degree of hydrophobisation is required. Nevertheless, surfactant based methods are well suited for compatibilising the lignocellulosic material with a hydrophobic matrix/polymer in cases where only a slight decrease in the hydrophilicity of the lignocellulosic substrate is required. On the other hand, wax- and lignin-based coatings can provide high hydrophobicity to the substrates. Plasma etching requires a more complex set-up but is relatively cheap. By physically etching the surface with or without the deposition of a hydrophobic coating, the material is rendered hydrophobic, reaching contact angles well above 120°. A major drawback of this method is the need for a plasma etching set-up, and some researchers co-deposit fluorine-based layers, which have a negative environmental impact. An alternative is plasma grafting, where single molecules are grafted on, initiated by radicals formed in the plasma. This method also requires a plasma set-up, but the vast majority of hydrophobic species can be grafted on. Examples include fatty acids, silanes and alkanes. Contact angles well above 110° are achieved by this method, and both fluorine and non-toxic species may be used for grafting. Graphical abstract

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Section: Discussionmentioning

confidence: 99%

Hydrophobisation of lignocellulosic materials part I: physical modification

Rodríguez-Fabià¹,

Torstensen

Johansson³

et al. 2022

Cellulose

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“…The addition of 1% chitosan and gallic acid extended freshness of the fillet for 14 days as it can hinder bacteria accumulation by 1.52 log CFU/g compared to control, and delayed volatile basic nitrogen and thiobarbituric acid by 89.9% and 33.3%, respectively [ 37 ]. At the molecular level, the bombardment of reactive species, particularly OH radicals, oxidises covalent bonds on the film surface to form carboxyl and other oxygen-containing functional groups [ 38 ]. This process also enhances the roughness of the film surface which can facilitate the incorporation of other antioxidant or antimicrobial compounds [ 39 , 40 ].…”

Section: Atmospheric Cold Plasma (Acp) In Food Technologymentioning

confidence: 99%

Current and Potential Applications of Atmospheric Cold Plasma in the Food Industry

et al. 2023

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The cost-effectiveness and high efficiency of atmospheric cold plasma (ACP) incentivise researchers to explore its potentials within the food industry. Presently, the destructive nature of this nonthermal technology can be utilised to inactivate foodborne pathogens, enzymatic ripening, food allergens, and pesticides. However, by adjusting its parameters, ACP can also be employed in other novel applications including food modification, drying pre-treatment, nutrient extraction, active packaging, and food waste processing. Relevant studies were conducted to investigate the impacts of ACP and posit that reactive oxygen and nitrogen species (RONS) play the principal roles in achieving the set objectives. In this review article, operations of ACP to achieve desired results are discussed. Moreover, the recent progress of ACP in food processing and safety within the past decade is summarised while current challenges as well as its future outlook are proposed.

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“…Novel cold plasma (CP) as a food processing technique has been established to influence food products positively [1] . The potential utilization of plasma innovation is broad and contains microbial decontamination, removal of toxins, food packaging dynamics, and agrochemical degradation [2] . Agrochemicals, such as pesticides and fungicides, are used in modern agriculture to improve crop production and protect them from pests and fungal attacks.…”

Section: Introductionmentioning

confidence: 99%