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Utilization of coffee pulp for the development of active biodegradable films with antioxidant properties
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Scientists turned coffee pulp, a leftover byproduct from processing coffee beans, into a natural additive for biodegradable food packaging, replacing some of the synthetic plastic we normally use. The coffee pulp is packed with antioxidants, so it made the packaging stronger and better at fighting off spoilage, though it did make the material a bit less flexible and less resistant to moisture. This matters because it offers a plant-based alternative to plastic wrap that could reduce both plastic waste and our everyday exposure to synthetic packaging materials, while also giving coffee farms a new use for waste that would otherwise
Plastic pollution and the accumulation of agricultural waste are two environmental problems. Coffee pulp, one of the most common and underutilized byproducts of the coffee process, is rich in antioxidants and can be used as a functional additive for biodegradable films. The objective of this research was to evaluate the effect of coffee pulp extract at different concentrations [1, 5, and 10% w/v] on alginate films. The results showed that adding the extract had significant effects [p < 0.05] on color and moisture content; barrier properties and elongation decreased, while tensile strength and antioxidant capacity increased with increasing coffee pulp extract content. SEM analysis revealed a rough surface. This biotechnological innovation offers a sustainable alternative to synthetic plastic and adds value to the coffee value chain.
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Preparation and evaluation of chlorogenic acid‑loaded polyvinyl alcohol‑flaxseed gum biodegradable films for food preservation
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Scientists created a plant-based food wrap using flaxseed gum and a natural antioxidant from coffee beans, offering an eco-friendly alternative to plastic packaging. In tests, this wrap kept pork fresh for 9 days by fighting bacteria and spoilage, while also breaking down in soil, unlike traditional plastics that persist and shed microplastics into food and the environment.
Utilization of spent coffee grounds as fillers to prepare polypropylene composites for food packaging applications
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Researchers used waste coffee grounds as filler material in polypropylene plastic composites to improve sustainability and reduce reliance on virgin plastic. Adding natural biomass waste to plastic formulations can reduce the total plastic content in consumer products, though the composites still produce microplastic fragments during use.
Low-Quality Coffee Beans Used as a Novel Biomass Source of Cellulose Nanocrystals: Extraction and Application in Sustainable Packaging
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Researchers developed bio-based methylcellulose films reinforced with cellulose nanocrystals (CNCs) extracted from low-quality coffee beans as a sustainable alternative to petroleum-based plastic food packaging. The extracted CNCs showed needle-like morphology (~221 nm length), 65.75% crystallinity, and good thermal stability, providing a promising path to reduce microplastic accumulation in food chains.
An overview: exploring the potential of fruit and vegetable waste and by-products in food biodegradable packaging
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Researchers reviewed how fruit and vegetable processing waste — rich in polyphenols, vitamins, and fiber — can be transformed into biodegradable food packaging films and coatings, offering an eco-friendly alternative to conventional plastic packaging. Repurposing food waste this way could simultaneously reduce plastic pollution (including microplastics from packaging degradation) and address agricultural waste disposal challenges.
Extraction and Application in Sustainable Packaging
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Researchers developed bio-based methylcellulose films reinforced with cellulose nanocrystals (CNCs) extracted from low-quality coffee beans as a sustainable alternative to petroleum-based plastic food packaging. The extracted CNCs showed needle-like morphology (~221 nm length), 65.75% crystallinity, and good thermal stability, providing a promising path to reduce microplastic accumulation in trophic chains.
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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.