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An ethyl cellulose-coated bacterial cellulose based hydrophobic and degradable straw-like materials towards drinking straws
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Researchers developed a microplastic-free drinking straw by coating bacterial cellulose with ethyl cellulose, achieving strong mechanical performance (66.82 MPa bending strength), water-repellent surfaces, and complete soil biodegradation within 20 days — outperforming conventional polylactic acid straws on both durability and environmental decomposition.
Currently, we are facing global challenges like petrochemical resource depletion and plastic products induced environmental issues. Especially, the commonly used disposable straws in daily life represent potential issues like other plastic products. Overuse and inadequate handling of disposable straws could add burden to environmental problems due to their non-recyclability in most areas and incomplete biodegradability. Therefore, it is important to find a high-performance alternative to eliminate plastic straw-related environmental problems. Cellulose based derivative materials are recognized as sustainable substitutes for plastics, yet the hydrophilic nature restricts their application as straws. To solve this problem, this study introduces a microplastic-free straw made from ethyl cellulose (EC) enhanced bacterial cellulose (BC). This fabricated EC enhanced BC based straw exhibits improved mechanical properties with bending strength up to 66.82 MPa, good hydrophobicity with water contact angle up to 110°, and favorable heat resistance compared to raw BC based straws. These enhancements are attributed to its three-dimensional nanofiber network structure and intermolecular hydrogen bonds. Moreover, it can degrade completely decomposition within 20 days compared to the commercially available polylactic acid-based straw in soil. This EC enhanced BC based drinking straw is a health-conscious and environmentally friendly alternative to plastic straws.
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Researchers developed a hydrophobic and biodegradable straw made from ethyl cellulose-coated bacterial cellulose as a microplastic-free alternative to conventional disposable plastic straws. The cellulose-based straw achieved the hydrophobicity needed for beverage use while remaining biodegradable, offering a sustainable substitute that avoids microplastic shedding during use and disposal.
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Researchers developed a new type of drinking straw made from bacterial cellulose that is edible, free of microplastics, and mechanically stronger than paper straws. The straw uses an alginate coating instead of adhesives and has a three-dimensional nanofiber structure that outperforms commercially available alternatives. This biosynthesized straw offers a healthier and more environmentally friendly replacement for disposable plastic straws.
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This study developed biodegradable bacterial cellulose as an alternative material for drinking straws, replacing conventional plastic. Bacterial cellulose straws are fully biodegradable, offering a practical solution to reduce the single-use plastic that fragments into microplastics in the environment.
Growing Strong Polysaccharide-Derived Edible Straws with an Inherent Structural Binder via Biomanufacturing
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Researchers developed edible straws made from bacterial cellulose and starch using a biomanufacturing approach, as an alternative to plastic straws that contribute to microplastic pollution. The straws demonstrated strong mechanical performance, maintaining their structure in both hot and cold beverages for extended periods. The study suggests that bio-manufactured food-contact materials could help reduce reliance on conventional plastics and the associated microplastic risks.
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