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Valorisation of Sugarcane Bagasse for the Sustainable Production of Polyhydroxyalkanoates

Author

Listed:
  • Soulayma Hassan

    (School of Science, RMIT University, Melbourne, VIC 3083, Australia
    ARC Training Centre for the Transformation of Australia’s Biosolids Resource, RMIT University, Bundoora, VIC 3083, Australia)

  • Tien Ngo

    (School of Science, RMIT University, Melbourne, VIC 3083, Australia
    ARC Training Centre for the Transformation of Australia’s Biosolids Resource, RMIT University, Bundoora, VIC 3083, Australia)

  • Andrew S. Ball

    (School of Science, RMIT University, Melbourne, VIC 3083, Australia
    ARC Training Centre for the Transformation of Australia’s Biosolids Resource, RMIT University, Bundoora, VIC 3083, Australia)

Abstract

With the world shifting towards renewable and sustainable resources, polyhydroxyalkanoates (PHAs) have attracted significant interest as an alternative to synthetic plastics. While possessing promising properties suitable for various applications, the production of PHAs has not yet reached a global commercial scale. The main reason is the high cost of production, which represents a major limitation. Sugarcane bagasse (SCB) is an abundant lignocellulosic waste around the world. Its use to produce PHA enhances the feasibility of producing PHAs at commercial scale. However, SCB requires pretreatment and hydrolysis steps to release the sugars prior to the microbial fermentation. The cost associated with these steps poses additional challenges for large-scale production. Another challenge is the release of inhibitors during the pretreatment process which can result in a low PHA yield. The development of a low cost, co-culture strategy for the bioconversion of SCB into PHAs, can represent a pivotal step towards the large-scale production of bioplastics. This review highlights the advancements made in recent years on the microbial production of PHA using SCB as potential feedstock, with a proposed biological strategy and circular economy model.

Suggested Citation

  • Soulayma Hassan & Tien Ngo & Andrew S. Ball, 2024. "Valorisation of Sugarcane Bagasse for the Sustainable Production of Polyhydroxyalkanoates," Sustainability, MDPI, vol. 16(5), pages 1-20, March.
    • Handle: RePEc:gam:jsusta:v:16:y:2024:i:5:p:2200-:d:1352254
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    References listed on IDEAS

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    1. Irena Wojnowska-Baryła & Katarzyna Bernat & Magdalena Zaborowska, 2022. "Plastic Waste Degradation in Landfill Conditions: The Problem with Microplastics, and Their Direct and Indirect Environmental Effects," IJERPH, MDPI, vol. 19(20), pages 1-15, October.
    2. Simone Bagatella & Riccardo Ciapponi & Elena Ficara & Nicola Frison & Stefano Turri, 2022. "Production and Characterization of Polyhydroxyalkanoates from Wastewater via Mixed Microbial Cultures and Microalgae," Sustainability, MDPI, vol. 14(6), pages 1-19, March.
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