Antimicrobial activity of nisin‐coated polylactic acid film facilitated by cold plasma treatment

Hu, Sheng; Li, Penghui; Wei, Zhongqing; Wang, J.; Wang, H.; Wang, Z.

doi:10.1002/app.46844

Cited by 30 publications

(23 citation statements)

References 62 publications

(65 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This enhancement in the roughness was attributed to the etching effect of plasma treatment [75]. Such incremental increases in surface roughness were also observed for polylactic acid/nisin film treated with cold plasma, where the surface roughness value of the untreated film was 4.26 nm and increased to 6.24 nm with the increase in treatment time from 0 to 30 s. A further increase in treatment time led to a decrease in surface roughness and this could be due to the longer treatment time (the 60 s) having etched off the PLA microscale protuberances and the appearance of nano-needle-like bumps, resulting in a more uniform PLA surface [48]. Also, Cools, Asadian [76] treated biodegradable polyethylene-oxide terephthalate (PEOT)/polybutylene terephthalate (PBT) film with DBD plasma involving air, He, Ar, and N 2 .…”

Section: Surface Roughnessmentioning

confidence: 99%

“…Cold plasma treatment is a novel technique that modifies the surface of the polymer providing opportunities to develop packaging materials with desired characteristics. For instance, the application of a cold plasma-activated polylactic acid surface facilitated the coating of nisin, resulting in the formation of antimicrobial packaging materials [48]. The grafting of polycaprolactone on the plasma-treated zein film showed enhanced water barrier properties [49].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effect of Cold Plasma Treatment on the Packaging Properties of Biopolymer-Based Films: A Review

et al. 2022

View full text Add to dashboard Cite

Biopolymers, like polysaccharides and proteins, are sustainable and green materials with excellent film-forming potential. Bio-based films have gained a lot of attention and are believed to be an alternative to plastics in next-generation food packaging. Compared to conventional plastics, biopolymers inherently have certain limitations like hydrophilicity, poor thermo-mechanical, and barrier properties. Therefore, the modification of biopolymers or their films provide an opportunity to develop packaging materials with desired characteristics. Among different modification approaches, the application of cold plasma has been a very efficient technology to enhance the functionality and interfacial characteristics of biopolymers. Cold plasma is biocompatible, shows uniformity in treatment, and is suitable for heat-sensitive components. This review provides information on different plasma generating equipment used for the modification of films and critically analyses the impact of cold plasma on packaging properties of films prepared from protein, polysaccharides, and their combinations. Most studies to date have shown that plasma treatment effectively enhances surface characteristics, mechanical, and thermal properties, while its impact on the improvement of barrier properties is limited. Plasma treatment increases surface roughness that enables surface adhesion, ink printability, and reduces the contact angle. Plasma-treated films loaded with antimicrobial compounds demonstrate strong antimicrobial efficacy, mainly due to the increase in their diffusion rate and the non-thermal nature of cold plasma that protects the functionality of bioactive compounds. This review also elaborates on the existing challenges and future needs. Overall, it can be concluded that the application of cold plasma is an effective strategy to modify the inherent limitations of biopolymer-based packaging materials for food packaging applications.

show abstract

Section: Surface Roughnessmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of Cold Plasma Treatment on the Packaging Properties of Biopolymer-Based Films: A Review

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Unlike general biopolymers, polylactic acid (PLA) derived from cornstarch fermentation is a hydrophobic biopolymer, and its film has relatively good mechanical and physical properties (Jin, 2017). Due to its biodegradability, processability, relatively low cost, good mechanical, physical, and optical properties, PLA film has been the most promising bio‐based food packaging material (Hu et al., 2018). Considerable attention has been devoted to preparing antimicrobial‐coated PLA films in recent years.…”

Section: Antimicrobial‐coated Films: Film Substrate and Antimicrobialsmentioning

confidence: 99%

“…Considerable attention has been devoted to preparing antimicrobial‐coated PLA films in recent years. Examples include nisin‐coated PLA films (Hu et al., 2018), nanostructured aluminum‐doped zinc oxide‐coated PLA films (Valerini et al., 2018), and PLA films coated with clove oil and chitosan (Munteanu et al., 2018). The use of other popular biopolymer films (e.g., starch, cellulose, chitosan, whey protein isolate, and zein) as a monolayer film substrate for coating purpose is rare in the literature.…”

Section: Antimicrobial‐coated Films: Film Substrate and Antimicrobialsmentioning

confidence: 99%

Antimicrobial‐coated films as food packaging: A review

Dudley

2021

Comp Rev Food Sci Food Safe

View full text Add to dashboard Cite

Antimicrobial food packaging involves packaging the foods with antimicrobials to protect them from harmful microorganisms. In general, antimicrobials can be integrated with packaging materials via direct incorporation of antimicrobial agents into polymers or application of antimicrobial coating onto polymer surfaces. The former option is generally achieved through thermal film‐making technology such as compression molding or film extrusion, which is primarily suitable for heat‐stable antimicrobials. As a nonthermal technology, surface coating is more promising compared to molding or extrusion for manufacturing food packaging containing heat‐sensitive antimicrobials. In addition, it also has advantages over direct incorporation to preserve the packaging materials’ bulk properties (e.g., mechanical and physical properties) and minimize the amount of antimicrobials to reach sufficient efficacy. Herein, antimicrobial food packaging films achieved through surface coating is explored and discussed. The two components (i.e., film substrate and antimicrobials) consisting of the antimicrobial‐coated films are reviewed as plastic/biopolymer films; and synthetic/naturally occurring antimicrobials. Furthermore, special emphasis is given to different coating technologies to deposit antimicrobials onto film substrate. Laboratory coating techniques (e.g., knife coating, bar coating, and spray coating) commonly applied in academic research are introduced briefly, and scalable coating methods (i.e., electrospinning/spraying, gravure roll coating, flexography coating) that have the potential to bring laboratory‐developed antimicrobial‐coated films to an industrial level are explained in detail. The migration profile, advantages/drawbacks of antimicrobial‐coated films for food applications, and quantitative analyses of the reviewed antimicrobial‐coated films from different aspects are also covered in this review. A conclusion is made with a discussion of the challenges that remain in bringing the production of antimicrobial‐coated films to an industrial level.

show abstract

“…Another interesting technique for the modification of PLA film surfaces and the improvement of their functionalization is by plasma treatments [ 256 , 257 , 258 ]. For instance, Hu et al [ 257 ] have recently coated a PLA film’s surface with nisin after modifying the film’s surface by means of cold plasma treatment (CPT). They studied the surface antimicrobial activity of the films against L. monocytogenes bacteria by the inhibition zone method.…”

Section: Polyestersmentioning

confidence: 99%

Bio-Based Polymers with Antimicrobial Properties towards Sustainable Development

et al. 2019

View full text Add to dashboard Cite

This article concisely reviews the most recent contributions to the development of sustainable bio-based polymers with antimicrobial properties. This is because some of the main problems that humanity faces, nowadays and in the future, are climate change and bacterial multi-resistance. Therefore, scientists are trying to provide solutions to these problems. In an attempt to organize these antimicrobial sustainable materials, we have classified them into the main families; i.e., polysaccharides, proteins/polypeptides, polyesters, and polyurethanes. The review then summarizes the most recent antimicrobial aspects of these sustainable materials with antimicrobial performance considering their main potential applications in the biomedical field and in the food industry. Furthermore, their use in other fields, such as water purification and coating technology, is also described. Finally, some concluding remarks will point out the promise of this theme.

show abstract

Antimicrobial activity of nisin‐coated polylactic acid film facilitated by cold plasma treatment

Cited by 30 publications

References 62 publications

Effect of Cold Plasma Treatment on the Packaging Properties of Biopolymer-Based Films: A Review

Effect of Cold Plasma Treatment on the Packaging Properties of Biopolymer-Based Films: A Review

Antimicrobial‐coated films as food packaging: A review

Bio-Based Polymers with Antimicrobial Properties towards Sustainable Development

Contact Info

Product

Resources

About