Strategies for Producing Improved Oxygen Barrier Materials Appropriate for the Food Packaging Sector

Khajavi, Maryam Zabihzadeh; Ebrahimi, Alireza; Yousefi, Mojtaba; Ahmadi, Shervin; Farhoodi, Mehdi; Alizadeh, Adel Mirza; Taslikh, Musarreza

doi:10.1007/s12393-020-09235-y

Cited by 65 publications

(26 citation statements)

References 159 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“… 8 A recent review has summarized the possible composite materials and their processing routes, where the final reduction in oxygen permeation can vary from as low as 5.6% to almost 100%. 9 …”

Section: Introductionmentioning

confidence: 99%

“… 11 PEM-based films with added nanocomponents, such as nanoclays or graphene oxide, have demonstrated excellent gas barrier properties that lead to a >99% reduction in oxygen permeation. 9 , 12 − 14 However, multicomponent films remain a substantial challenge for recycling. Without adding other components, PE-only films have also been constructed using LbL, and it was observed that the dense ionically cross-linked network also lowered the gas permeation significantly.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Single-Step Application of Polyelectrolyte Complex Films as Oxygen Barrier Coatings

Ewijk

Dijken³

et al. 2021

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

Polyelectrolyte complex (PEC) films such as polyelectrolyte multilayers have demonstrated excellent oxygen barrier properties, but unfortunately, the established layer-by-layer approaches are laborious and difficult to scale up. Here, we demonstrate a novel single-step approach to produce a PEC film, based on the use of a volatile base. Ammonia was used to adjust the pH of poly(acrylic acid) (PAA) so that direct complexation was avoided when it was mixed with polyethylenimine (PEI). Different charge ratios of homogeneous PEI/PAA solutions were successfully prepared and phase diagrams varying the concentration of ammonia or polyelectrolyte were made to study the phase behavior of PEI, PAA, and ammonia in water. Transparent ∼1 μm thick films were successfully deposited on biaxially orientated polypropylene (BOPP) sheets using a Meyer rod. After casting the films, the decrease in pH, caused by the evaporation of ammonia, triggered the complexation during drying. The oxygen permeation properties of films with different ratios and single polyelectrolytes were tested. All films displayed excellent oxygen barrier properties, with an oxygen permeation below 4 cm 3 ·m –2 ·day –1 ·atm –1 (<0.002 barrer) at the optimum ratio of 2:1 PEI/PAA. This ammonia evaporation-induced complexation approach creates a new pathway to prepare PEC films in one simple step while allowing the possibility of recycling.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Single-Step Application of Polyelectrolyte Complex Films as Oxygen Barrier Coatings

Ewijk

Dijken³

et al. 2021

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

show abstract

“…Protein, starch, cellulose, PLA-based nanocomposites are the ones that were separately reviewed earlier and compared, guaranteeing barrier performances and physical packaging integrity. Taken together, it seems that industrial usage of polymer blends, multilayer systems, natural biopolymers with chemical modifications, coatings, and composites can improve the features mentioned above [68,174,175].…”

Section: Improvement In Barrier Properties Of Polymers By Nanoparticles In Food Packagingmentioning

confidence: 99%

“…Increasing the path length or blocking the passage of oxygen gas in the polymer by various particles is a new approach that has become one of the most important and effective pathways. There are several strategies for making improved barrier properties in polymers (like bioplastics) used for food packaging due to refraining from the migration of oxygen, carbon dioxide, anhydride, aroma, flavor, and water vapor to the ingredients of food, eventuating to make them as the most sustainable biopolymers [68,174,175]. Results of several studies proposed nanoscale size fillers like MMT and kaolinite clay.…”

Section: Improvement In Barrier Properties Of Polymers By Nanoparticles In Food Packagingmentioning

confidence: 99%

Employing Nanosilver, Nanocopper, and Nanoclays in Food Packaging Production: A Systematic Review

et al. 2021

View full text Add to dashboard Cite

Over the past decade, there has been an increasing demand for “ready-to-cook” and “ready-to-eat” foods, encouraging food producers, food suppliers, and food scientists to package foods with minimal processing and loss of nutrients during food processing. Following the increasing trend in the customer’s demands for minimally processed foodstuffs, this underscores the importance of promising interests toward industrial applications of novel and practical approaches in food. Along with substantial progress in the emergence of “nanoscience”, which has turned into the call of the century, the efficacy of conventional packaging has faded away. Accordingly, there is a wide range of new types of packaging, including electronic packaging machines, flexible packaging, sterile packaging, metal containers, aluminum foil, and flexographic printing. Hence, it has been demonstrated that these novel approaches can economically improve food safety and quality, decrease the microbial load of foodborne pathogens, and reduce food spoilage. This review study provides a comprehensive overview of the most common chemical or natural nanocomposites used in food packaging that can extend food shelf life, safety and quality. Finally, we discuss applying materials in the production of active and intelligent food packaging nanocomposite, synthesis of nanomaterial, and their effects on human health.

show abstract

“…[ 10,11 ] Nevertheless, PLA is a weak competitor to typical packaging materials in terms of gas barrier properties, which are necessary to prevent spoilage and extend the shelf‐life of packaged food. [ 12 ]…”

Section: Introductionmentioning

confidence: 99%

High Barrier Nanocomposite Film with Accelerated Biodegradation by Clay Swelling Induced Fragmentation

Timmins

Kumar

Röhrl

et al. 2021

Macro Materials & Eng

View full text Add to dashboard Cite

Conventional biodegradable polymers such as poly(lactic acid) (PLA) are an attractive alternative to replace traditional nondegradable food packaging films which plague the environment. However, PLA has shown to not be degradable in some environmentally relevant conditions, including within the freshwater systems. Additionally, PLA suffers from very poor barrier properties, which could result in food spoilage. Compositing with clay has been used to improve barrier properties according to tortuous path theory. Here a synthetic, large aspect ratio Na-Hectorite is used that may be utterly delaminated in an organic solvent and composited with PLA by modification with 18-crown-6 (18C6Hec), yielding a castable, homogeneous nematic suspension. Upon drying, thermodynamics drive the suspension toward segregation into sublayers of PLA and partially restacked 18C6Hec in situ. This unique self-assembled nanostructure combines the best of two worlds: The aspect ratio remains high and results in a 99.3% reduction in oxygen permeability. Additionally, the film shows surprisingly high resistance to swelling at elevated humidity, but once soaked in water, clay swelling is triggered, which fragments the film and drastically increases the surface area by 2500%. Accelerated degradation is observed under controlled enzymatic conditions and in an environmentally relevant wastewater medium during CO 2 evolution testing.

show abstract

Strategies for Producing Improved Oxygen Barrier Materials Appropriate for the Food Packaging Sector

Cited by 65 publications

References 159 publications

Single-Step Application of Polyelectrolyte Complex Films as Oxygen Barrier Coatings

Single-Step Application of Polyelectrolyte Complex Films as Oxygen Barrier Coatings

Employing Nanosilver, Nanocopper, and Nanoclays in Food Packaging Production: A Systematic Review

High Barrier Nanocomposite Film with Accelerated Biodegradation by Clay Swelling Induced Fragmentation

Contact Info

Product

Resources

About