AI Article Synopsis
- The study introduces a sustainable food packaging solution by creating a flexible composite film made from chitosan (CH) and lignosulfonate (LS) derived from pulping byproducts.
- The CH/LS film showed significant improvements in strength and moisture resistance compared to pure chitosan, especially with 2% LS content.
- When tested on cherry tomatoes, the film effectively preserved freshness and reduced weight loss over a two-week period, highlighting its potential for eco-friendly food preservation.
Article Abstract
The massive production of food waste and plastic pollution necessitates innovative solutions. This study reports the first fabrication of a flexible chitosan (CH) film reinforced with lignosulfonate (LS) derived from pulping byproduct as a sustainable alternative to synthetic food packaging. The CH/LS composite film was prepared by a simple casting method with varying LS contents of 1 % and 2 %. Compared to CH film, the addition of 2 % LS increased the tensile strength by over 4 times and decreased water vapor permeability by 11 %. Moreover, the CH/LS film exhibited excellent UV-shielding properties. This novel use of LS to reinforce CH film presents an eco-friendly active packaging material. When used to package cherry tomatoes for 2 weeks, the CH/LS film effectively maintained fruit freshness and hardness while minimizing weight loss. This work provides new scientific evidence on the optimized preparation and application of CH/LS composite films from renewable resources for food preservation.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10865233 | PMC |
| http://dx.doi.org/10.1016/j.fochx.2024.101181 | DOI Listing |
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