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Preparation of starch/pectin packaging films adding cedarwood essential oil and application in giant tiger prawn preservation
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Starch and pectin-based packaging films incorporating cedarwood essential oil were developed as antimicrobial, biodegradable food packaging alternatives. These bio-based films represent part of the solution to replacing petrochemical plastics that contribute to microplastic pollution.
Shrimp preservation currently relies mainly on petroleum-based plastic films and refrigeration, which, although effective, may release microplastics into the environment. Developing biodegradable alternatives is therefore of great significance. In this study, potato starch (PS)/apple pectin (AP)/cedarwood essential oil (CEO) composite films were prepared via the casting method and evaluated for their potential in giant tiger prawn preservation. CEO incorporation markedly improved the film's properties, including mechanical strength (from 9.6 % to 32.4 %), UV shielding efficiency (EAB from 7.47 % to 33.2 % at 600 nm), and antibacterial activity. Films containing 2 % CEO exhibited superior antibacterial performance. Preservation tests further demonstrated that 2 % CEO films effectively inhibited increases in total volatile basic nitrogen (TVB-N) and pH: after 48 h, TVB-N rise decreased from 42.55 % to 23.04 %, while pH increase was reduced from 0.83 to 0.16. These findings highlight the potential of PS/AP/CEO films as sustainable packaging materials for extending the shelf life of seafood.
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Researchers developed biodegradable food packaging films made from seaweed-derived k-carrageenan combined with citronella essential oil as a potential replacement for petroleum-based plastics. The films showed strong antioxidant and antimicrobial properties while maintaining good structural integrity. The study suggests these bio-based films could serve as a more environmentally friendly alternative for food packaging applications.
A review of advancements in chitosan-essential oil composite films: Better and sustainable food preservation with biodegradable packaging
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This review covers how films made from chitosan (a natural material from shellfish) combined with essential oils are being developed as biodegradable food packaging to replace conventional plastics. By reducing reliance on plastic packaging, these alternatives could help decrease the amount of microplastics that migrate into food and are ultimately consumed by people.
Synthesis and characterization of edible plastic based on waste-derived durian seed starch with patchouli leaf extract as eco-friendly primary packaging
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Researchers produced edible bioplastic films from durian seed starch enriched with patchouli leaf extract and found that increasing starch concentration from 6% to 10% improved tensile strength, thickness, and elongation while achieving 65% biodegradation in 14 days and antimicrobial activity against E. coli, suggesting a viable food packaging alternative to petroleum-based plastic.
Starch/Pectin as Emerging Renewable Materials for Fabrication of Sustainable Bioplastics for Food Packaging Applications
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Not relevant to microplastics — this paper describes the development of biodegradable food packaging films made from plant-based starch, pectin, and chitosan, focused on replacing conventional plastics rather than studying their pollution.
Effectiveness of Clove oil-enriched starch films as packaging materials
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Scientists created a food packaging film from starch and clove oil that can actually kill harmful bacteria (like the kind found in fish), offering a plant-based alternative to plastic wrap. This matters because it could help keep food safer from bacterial contamination while cutting down on plastic waste and the microplastics that come from it, though more research is needed before it hits store shelves.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.