Abstract
The escalating demand for sustainable alternatives to conventional plastics has inspired extensive research into bioplastic production. This study aims to help meet the demand for eco-friendly materials by exploring the potential of pear waste biomass as a valuable resource for polyhydroxyalkanoates (PHA) production in biorefineries. To meet the growing demand for bioplastics, it is crucial to develop novel PHA materials with desirable product quality from cost-effective waste-carbon substrates. Bioplastics, known for their biodegradability and ease of decomposition, offer a promising solution for alleviating the burden on municipal and industrial waste management. However, the bottleneck in industrial PHA production lies in the high cost of carbon substrates and the complexity of downstream processes. Bacterial PHA production has emerged as a promising approach because it utilizes agricultural and industrial waste as renewable carbon substrates, thereby eliminating waste management challenges. This process not only addresses the issues associated with synthetic plastics but also contributes to a more sustainable future. Specifically, agro-industrial waste from the pear fruit industry, including pear residues, pear twigs, and discarded paper bags, represents a promising feedstock for PHA production due to its abundant availability and potential to mitigate waste disposal issues. This review comprehensively examines state-of-the-art approaches, challenges, and opportunities in producing PHA from pear waste materials. Moreover, it highlights the potential of pear waste biomass as a resource for PHA production in biorefineries, emphasizing its role in addressing waste management challenges and contributing to the development of eco-friendly materials.
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This research was supported by the National Institute of Horticultural and Herbal Science (Grant Number PJ01718104), funded by the Rural Development Administration of the Republic of Korea.
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SSS, SRB, JHS and HJS conceived the review. SSS, SRB, and HJS drafted the manuscript and SSS, JHS and HJS revised the manuscript. All authors read and approved the final manuscript. All authors have read and agreed to the published version of the manuscript.
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Sawant, S.S., Bhapkar, S.R., Song, J. et al. Sustainable bioplastics: harnessing pear agro-industrial waste for polyhydroxyalkanoates production: a review. Int. J. Environ. Sci. Technol. 21, 7341–7352 (2024). https://doi.org/10.1007/s13762-024-05493-z
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DOI: https://doi.org/10.1007/s13762-024-05493-z