Abstract
This study aimed to evaluate the feasibility of using sugar-sweetened beverages (SSB) for citric acid (CA) production and its impact on chemical oxygen demand (COD) of SSB. Five types of SSB were used as a carbon source for CA production by A. niger, and the COD of each SSB was measured before and after the bioprocess. Results showed that all tested SSB were suitable for CA production, with maximum yields ranging from 13.01 to 56.62 g L− 1. The COD was reduced from 53 to 75.64%, indicating that the bioprocess effectively treated SSB wastes. The use of SSB as a substrate for CA production provides an alternative to traditional feedstocks, such as sugarcane and beet molasses. The low-cost and high availability of SSB makes it an attractive option for CA production. Moreover, the study demonstrated the potential of the bioprocess to simultaneously treat and reuse SSB wastes, reducing the environmental impact of the beverage industry.
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Acknowledgements
This work was supported by Brazilian National Council for Scientific and Technological Development (CNPq), Brazil, and Coordination of Improvement of Higher Education Personnel (CAPES), Brazil.
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SM: Conceptualization and investigation, Experiments, Writing—original draft preparation, final review & editing; LPdeSV: Supervision, Resources; Writing—review and editing; WJM-B: Writing—review and editing; CR: Analytical Procedures; Writing—review and editing; CRS: Resources; Writing—final review & editing, Head of Bioprocess Engineering and Biotechnology Laboratory.
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Mores, S., de Souza Vandenberghe, L.P., Martinez-Burgos, W.J. et al. Simultaneous reuse and treatment of sugar-sweetened beverage wastes for citric acid production. J Food Sci Technol 60, 2401–2407 (2023). https://doi.org/10.1007/s13197-023-05761-9
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DOI: https://doi.org/10.1007/s13197-023-05761-9