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Mannitol: physiological functionalities, determination methods, biotechnological production, and applications

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Abstract

Mannitol is a naturally occurring six-carbon sugar alcohol that has wide applications in the food and pharmaceutical industry because of its many properties, namely being a natural sweetener with a low metabolism and no glycemic index. The increasing demand for mannitol has spurred many studies of its production. Compared with its chemical synthesis and extraction from plants, both of which are difficult to satisfy for industrial requirements, biotechnological production of mannitol has received considerably more attention and interest from scientists because of its known advantages over those two methods. Accordingly, in this review, we summarize recent advances made in the production of mannitol through various biotechnological methods. The physicochemical properties, sources, and physiological functionalities and applications of mannitol are systematically covered and presented. Then, different determination methods for mannitol are also described and compared. Furthermore, different biotechnological strategies for the production of mannitol via fermentation engineering, protein engineering, and metabolic engineering receive a detailed overview in terms of mannitol-producing strains, enzymes, and their key reaction parameters and conditions.

Key points

Physiological functionalities and applications of mannitol are presented in detail.

Different determination methods for mannitol are also described and compared.

Various biotechnological strategies for the production of mannitol are reviewed.

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Funding

This work was supported by the National Natural Science Foundation of China (No. 31801583 and No. 31922073), the Natural Science Foundation of Jiangsu Province (No. BK20180607), and the National First-Class Discipline Program of Food Science and Technology of China (JUFSTR20180203).

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MC and HW wrote the paper. HW, WZ, and WM collected references and drew pictures. HW and CG designed the structure and discussed the manuscript. All the authors read and approved the manuscript.

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Correspondence to Hao Wu.

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The authors declare that they have no conflict of interest.

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This article does not contain studies with human participants or animals carried out by any of the authors.

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Chen, M., Zhang, W., Wu, H. et al. Mannitol: physiological functionalities, determination methods, biotechnological production, and applications. Appl Microbiol Biotechnol 104, 6941–6951 (2020). https://doi.org/10.1007/s00253-020-10757-y

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  • DOI: https://doi.org/10.1007/s00253-020-10757-y

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