Bio-Based and Biodegradable Plastics: From Passive Barrier to Active Packaging Behavior

Iordanskii, A. L.

doi:10.3390/polym12071537

Cited by 12 publications

(9 citation statements)

References 10 publications

(10 reference statements)

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“…The eco-friendly characteristics of the material in combination with the innovative solutions can result in the creation of a new packaging generation [ 26 ]. Thus, nowadays, we can find more examples of active as well as intelligent packages [ 27 , 28 ].…”

Section: Introductionmentioning

confidence: 99%

Bio-Based Packaging Materials Containing Substances Derived from Coffee and Tea Plants

Olejnik

Masek

2020

Materials

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The aim of the research was to obtain intelligent and eco-friendly packaging materials by incorporating innovative additives of plant origin. For this purpose, natural substances, including green tea extract (polyphenon 60) and caffeic acid, were added to two types of biodegradable thermoplastics (Ingeo™ Biopolymer PLA 4043D and Bioplast GS 2189). The main techniques used to assess the impact of phytocompounds on materials’ thermal properties were differential scanning calorimetry (DSC) and thermogravimetry (TGA), which confirmed the improved resistance to thermo-oxidation. Moreover, in order to assess the activity of applied antioxidants, the samples were aged using a UV aging chamber and a weathering device, then retested in terms of dynamic mechanical properties (DMA), colour changing, Vicat softening temperature, and chemical structure, as studied using FT-IR spectra analysis. The results revealed that different types of aging did not cause significant differences in thermo-mechanical properties and chemical structure of the samples with natural antioxidants but induced colour changing. The obtained results indicate that polylactide (PLA) and Bioplast GS 2189, the plasticizer free thermoplastic biomaterial containing polylactide and starch (referred to as sPLA in the present article), both with added caffeic acid and green tea extract, can be applied as smart and eco-friendly packaging materials. The composites reveal better thermo-oxidative stability with reference to pure materials and are able to change colour as a result of the oxidation process, especially after UV exposure, providing information about the degree of material degradation.

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Section: Introductionmentioning

confidence: 99%

Bio-Based Packaging Materials Containing Substances Derived from Coffee and Tea Plants

Olejnik

Masek

2020

Materials

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“…For instance, they may be designed to inhibit microbial growth, to retard undesirable chemical reactions, or to control enzyme activity, thereby extending the shelf life of foods [ 108 , 109 ]. Typically, this is achieved by incorporating antimicrobials and/or antioxidants agents into the packaging materials, with a particular emphasis on the utilization of natural botanically-derived functional ingredients for clean labeling purposes [ 7 , 25 , 110 , 111 , 112 ]. One of the potential advantages of active packaging materials is that the antioxidants and antimicrobials are located within the film, rather than within the food, which may reduce the amount of these additives required to protect the food during storage, as well as reducing the amount ingested [ 108 , 109 , 113 , 114 ].…”

Section: Active Packaging Materialsmentioning

confidence: 99%

“…Indeed, the increasing research activity in this area can be seen from the number of scientific articles published on packaging materials made from biopolymers versus those made from plastics ( Figure 1 ). The utilization of biopolymers for this purpose is often advantageous because they are more biodegradable, sustainable, and environmentally friendly than synthetic polymers [ 3 , 7 , 8 ]. In particular, biopolymer-based films can easily be degraded by microorganisms and some inorganic compounds in the environment [ 9 , 10 , 11 ].…”

Section: Introductionmentioning

confidence: 99%

Recent Advances in the Development of Smart and Active Biodegradable Packaging Materials

et al. 2021

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Interest in the development of smart and active biodegradable packaging materials is increasing as food manufacturers try to improve the sustainability and environmental impact of their products, while still maintaining their quality and safety. Active packaging materials contain components that enhance their functionality, such as antimicrobials, antioxidants, light blockers, or oxygen barriers. Smart packaging materials contain sensing components that provide an indication of changes in food attributes, such as alterations in their quality, maturity, or safety. For instance, a smart sensor may give a measurable color change in response to a deterioration in food quality. This article reviews recent advances in the development of active and smart biodegradable packaging materials in the food industry. Moreover, studies on the application of these packaging materials to monitor the freshness and safety of food products are reviewed, including dairy, meat, fish, fruit and vegetable products. Finally, the potential challenges associated with the application of these eco-friendly packaging materials in the food industry are discussed, as well as potential future directions.

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“…Bio-based and biodegradable materials have shown strong growth in the packaging industry mainly due to recent trends in the consumer market moving toward greener packaging and reducing waste products [1]. With the increasing concern on sustainability politics, academia and industry are encouraged to develop sustainable and circular alternatives for preserving limited resources for future generations, focusing on biodegradable and bio-renewable materials [2].…”

Section: Introductionmentioning

confidence: 99%

“…In the recent past, the main focus has been put on biopolymers derived from synthetization from bio-based monomers, such as polylactic acid (PLA) or polyhydroxyalkanoates (PHA). Especially in the packaging industry, such macro-molecules are commonly considered as potential replacements to fossil-based polymers [1]. However, an EU directive introduced in July 2019 bans the single-use of non-compostable materials such as plastics by 2021 and threatens a find to any countries who do not respect these obligations.…”

Section: Introductionmentioning

confidence: 99%

Options to Improve the Mechanical Properties of Protein-Based Materials

2022

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While bio-based but chemically synthesized polymers such as polylactic acid require industrial conditions for biodegradation, protein-based materials are home compostable and show high potential for disposable products that are not collected. However, so far, such materials lack in their mechanical properties to reach the requirements for, e.g., packaging applications. Relevant measures for such a modification of protein-based materials are plasticization and cross-linking; the former increasing the elasticity and the latter the tensile strength of the polymer matrix. The assessment shows that compared to other polymers, the major bottleneck of proteins is their complex structure, which can, if developed accordingly, be used to design materials with desired functional properties. Chemicals can act as cross-linkers but require controlled reaction conditions. Physical methods such as heat curing and radiation show higher effectiveness but are not easy to control and can even damage the polymer backbone. Concerning plasticization, effectiveness and compatibility follow opposite trends due to weak interactions between the plasticizer and the protein. Internal plasticization by covalent bonding surpasses these limitations but requires further research specific for each protein. In addition, synergistic approaches, where different plasticization/cross-linking methods are combined, have shown high potential and emphasize the complexity in the design of the polymer matrix.

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Bio-Based and Biodegradable Plastics: From Passive Barrier to Active Packaging Behavior

Cited by 12 publications

References 10 publications

Bio-Based Packaging Materials Containing Substances Derived from Coffee and Tea Plants

Bio-Based Packaging Materials Containing Substances Derived from Coffee and Tea Plants

Recent Advances in the Development of Smart and Active Biodegradable Packaging Materials

Options to Improve the Mechanical Properties of Protein-Based Materials

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