Food Packaging Materials with Special Reference to Biopolymers-Properties and Applications

“…Table 4 gives the tensile strength and water vapour permeability values of some of the biopolymers. 36,144 It was also observed that a vide category of biopolymers have been developed by many researchers in various forms like coatings, films and containers, for various applications in packaging. 144 Various biopolymer films and coatings are being used as better alternatives to their synthetic counterparts.…”

Section: Packaging Applications Of Different Biopolymersmentioning

confidence: 99%

“…36,144 It was also observed that a vide category of biopolymers have been developed by many researchers in various forms like coatings, films and containers, for various applications in packaging. 144 Various biopolymer films and coatings are being used as better alternatives to their synthetic counterparts. Further, addition of natural active agents like as essential oils to the biopolymers has shown improvements in their mechanical, barrier, thermal and other functional properties like antimicrobial and antioxidant properties of these composite films and coatings.…”

Section: Packaging Applications Of Different Biopolymersmentioning

confidence: 99%

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Biopolymers for packaging applications: An overview

Juikar

Warkar

2022

Packag Technol Sci

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Biopolymers are fourth generation packaging materials. Due to the shortcomings of the petrochemical‐based polymers and their threat to the environment, biopolymers are seen as the sustainable substitute for traditional synthetic polymers and have attracted the researchers towards the development of biopolymer‐based packaging materials. However, biopolymers suffer from flaws like inferior mechanical strength and thermal stability, which poses its inability to use at industrial scale. The recent studies thus highlighted the different modification methods such as reactive or nonreactive compatibilisation to conquer such issues. The present article recapitulates the various biopolymers developed in the recent past, modification methods for their processing and their packaging applications.

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“…Biopolymers can be obtained from various sources; the most used are those based on polysaccharides (sodium alginate, agar, chitosan, carrageenan, starch and cellulose), lipids (waxes and fatty acids) and proteins (gelatin, collagen and soy protein isolate) [ 1 ]. They are extensively used, owing to the properties of biobased materials, such as mechanical performance, physicochemical characteristics comparable to those of conventional materials [ 2 ], antibacterial and antioxidant properties, high biocompatibility, compostability, non-toxicity, non-immunogenicity, non-carcinogenicity, and non-inflammatory and non-allergenic character [ 3 , 4 ]. Multiple manufacturing methods have increased their widespread use.…”

Section: Introductionmentioning

confidence: 99%

The Use of Biopolymers as a Natural Matrix for Incorporation of Essential Oils of Medicinal Plants

Puscaselu

Lobiuc

Sîrbu

et al. 2022

Gels

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The benefits of using biopolymers for the development of films and coatings are well known. The enrichment of these material properties through various natural additions has led to their applicability in various fields. Essential oils, which are well-known for their beneficial properties, are widely used as encapsulating agents in films based on biopolymers. In this study, we developed biopolymer-based films and tested their properties following the addition of 7.5% and 15% (w/v) essential oils of lemon, orange, grapefruit, cinnamon, clove, chamomile, ginger, eucalyptus or mint. The samples were tested immediately after development and after one year of storage in order to examine possible long-term property changes. All films showed reductions in mass, thickness and microstructure, as well as mechanical properties. The most considerable variations in physical properties were observed in the 7.5% lemon oil sample and the 15% grapefruit oil sample, with the largest reductions in mass (23.13%), thickness (from 109.67 µm to 81.67 µm) and density (from 0.75 g/cm3 to 0.43 g/cm3). However, the microstructure of the sample was considerably improved. Although the addition of lemon essential oil prevented the reduction in mass during the storage period, it favored the degradation of the microstructure and the loss of elasticity (from 16.7% to 1.51% for the sample with 7.5% lemon EO and from 18.28% to 1.91% for the sample with 15% lemon EO). Although the addition of essential oils of mint and ginger resulted in films with a more homogeneous microstructure, the increase in concentration favored the appearance of pores and modifications of color parameters. With the exception of films with added orange, cinnamon and clove EOs, the antioxidant capacity of the films decreased during storage. The most obvious variations were identified in the samples with lemon, mint and clove EOs. The most unstable samples were those with added ginger (95.01%), lemon (92%) and mint (90.22%).

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Food Packaging Materials with Special Reference to Biopolymers-Properties and Applications

Cited by 98 publications

References 127 publications

Biopolymers: A suitable replacement for plastics in product packaging

Biopolymers: A suitable replacement for plastics in product packaging

Biopolymers for packaging applications: An overview

The Use of Biopolymers as a Natural Matrix for Incorporation of Essential Oils of Medicinal Plants

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