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Chitosan Based Biodegradable Composite for Antibacterial Food Packaging Application - PubMed

️Sun Jan 01 2023

Review

Chitosan Based Biodegradable Composite for Antibacterial Food Packaging Application

Andre Jiang et al. Polymers (Basel). 2023.

Abstract

A recent focus on the development of biobased polymer packaging films has come about in response to the environmental hazards caused by petroleum-based, nonbiodegradable packaging materials. Among biopolymers, chitosan is one of the most popular due to its biocompatibility, biodegradability, antibacterial properties, and ease of use. Due to its ability to inhibit gram-negative and gram-positive bacteria, yeast, and foodborne filamentous fungi, chitosan is a suitable biopolymer for developing food packaging. However, more than the chitosan is required for active packaging. In this review, we summarize chitosan composites which show active packaging and improves food storage condition and extends its shelf life. Active compounds such as essential oils and phenolic compounds with chitosan are reviewed. Moreover, composites with polysaccharides and various nanoparticles are also summarized. This review provides valuable information for selecting a composite that enhances shelf life and other functional qualities when embedding chitosan. Furthermore, this report will provide directions for the development of novel biodegradable food packaging materials.

Keywords: antimicrobial activity; biodegradable chitosan film; chitosan; composites; food packaging.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

**Scheme 1**
Chitosan preparation from chitin by deacetylation [8].

**Figure 1**
Antimicrobial activity of CEO emulsions against *E. coli* (A) and *S. aureus* (B). GA/CEO, GA/CEO-U, OSA-GA/CEO, OSA-GA/CEO-U represents 1–4, respectively. Visual appearance of film-forming dispersions (C) and films (D) with different ratios of CEO emulsions: a, a1—0% emulsion; b, b1—5% emulsion; c, c1—10% emulsion; d, d1—15% emulsion; e, e1—20% emulsion [36].

**Figure 2**
Bread samples packaged by (a) PE, (b) PCL/chitosan, (c) GFSE content 0.5, (d) 1.0, (e) 1.5, (f) 2.0, and (g) 2.5 films at 24 °C, for one week [47].

**Figure 3**
Schematic representation of chitosan–starch based composite film with antibacterial activity [61].

**Figure 4**
Photograph of tomato: (a) control, (b) nCS, (c) CS/CAEE 2%, (d) CS/CAEE 4%, at a specific storage day [70].

**Figure 5**
Schematic representation of Cap-Fe^III-HMOF-5 modified gel/chi film preparation [81].

**Figure 6**
Schematic diagram for the preparation of PVA/CS/DL composite films that increased the shelf life of mangoes [85].

**Figure 7**
Schematic diagram of CS/CAP and ZnO nanoparticle film preparation and applications [91].

**Figure 8**
Graphical representation showing antimicrobial properties of MMT-CuO nanocomposites [107].

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Chitosan Based Biodegradable Composite for Antibacterial Food Packaging Application - PubMed