Abstract
Most fossil fuel-derived polymers used for food packaging are non-biodegradable and induce pollution by microplastic, calling for safer material. Here we review microbial production and applications of pullulan, a unique biopolymer produced by fermentation of agro-residues, using a strain named Aureobasidium pullulan. Chemically modified pullulan is widely used in food, pharmaceuticals, biomedical, and cosmetics. Compared to conventional polymers, pullulan increases the tensile strength 6–37-folds and increases the bioadhesion time 72–120-folds. Pullulan has been recently produced from agro-based waste with yields as high as 58-69 g/L.
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References
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Muthusamy, S., Anandharaj, S.J., Kumar, P.S. et al. Microbial pullulan for food, biomedicine, cosmetic, and water treatment: a review. Environ Chem Lett 20, 3199–3234 (2022). https://doi.org/10.1007/s10311-022-01460-7
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DOI: https://doi.org/10.1007/s10311-022-01460-7