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d-lyxose isomerase and its application for functional sugar production

Abstract

Functional sugars have attracted attention because of their wide application prospects in the food, cosmetics, and pharmaceutical industries in recent decades. Compared with complex chemical synthesis, enzymatic methods of creating functional sugars, characterized by high specificity, moderate reaction conditions, and sustainability, are favored. d-lyxose isomerase (d-LI, EC 5.3.1.15), an important aldose-ketose isomerase, catalyzes the reverse isomerization reaction between d-xylulose and d-lyxose, as well as d-fructose and d-mannose. d-LI has drawn researchers’ attention due to its broad substrate specificity and high potential for enzymatic production of some functional sugars such as d-xylulose, d-mannose, and d-ribose. In this article, an overview of recent advances in the biochemical properties of various d-LIs is explored in detail. Structural analysis, active site identification, and catalytic mechanisms are also provided. Additionally, the applications of d-LIs for functional sugar production, including d-lyxose, d-mannose, and l-ribose, are reviewed in detail in this paper.

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Funding

This study was funded by the NSFC Project (no. 21276001), the 863 Project (no. 2013AA102102), the Support Project of Jiangsu Province (no. BK20130001 and 2015-SWYY-009), and the project of Outstanding Scientific and Technological Innovation Group of Jiangsu Province (Jing Wu).

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Correspondence to Wanmeng Mu.

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The authors declare that they have no conflict of interest.

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

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Huang, J., Chen, Z., Zhang, W. et al. d-lyxose isomerase and its application for functional sugar production. Appl Microbiol Biotechnol 102, 2051–2062 (2018). https://doi.org/10.1007/s00253-018-8746-6

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  • DOI: https://doi.org/10.1007/s00253-018-8746-6

Keywords

  • d-lyxose isomerase
  • d-lyxose
  • Substrate specificity
  • Functional sugar