Journal
CARBOHYDRATE POLYMERS
Volume 258, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2021.117695
Keywords
oligo/polysaccharide; nucleotide sugar; bio-based strategy; enzymatic catalysis; cell factory
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Funding
- National First-class Discipline Program of Light Industry Technology and Engineering [LITE2018-22]
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This review discusses recent biotechnological approaches to oligo/polysaccharide synthesis, involving in vitro enzymatic synthesis and cell factory synthesis. The important factors in nucleotide sugar production are explored, along with strategies like metabolic flux rebuilding and regulation, enzyme engineering, and route design. Research challenges and prospects are also outlined and discussed.
Oligosaccharides and polysaccharides constitute the principal components of carbohydrates, which are important biomacromolecules that demonstrate considerable bioactivities. However, the variety and structural complexity of oligo/polysaccharides represent a major challenge for biological and structural explorations. To access structurally defined oligo/polysaccharides, biological strategies using glycoenzyme biocatalysts have shown remarkable synthetic potential attributed to their regioselectivity and stereoselectivity that allow mild, structurally controlled reaction without addition of protecting groups necessary in chemical strategies. This review summarizes recent biotechnological approaches of oligo/polysaccharide synthesis, which mainly includes in vitro enzymatic synthesis and cell factory synthesis. We have discussed the important factors involved in the production of nucleotide sugars. Furthermore, the strategies established in the cell factory and enzymatic syntheses are summarized, and we have highlighted concepts like metabolic flux rebuilding and regulation, enzyme engineering, and route design as important strategies. The research challenges and prospects are also outlined and discussed.
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