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Preparative-Scale Enzymatic Synthesis of rac-Glycerol-1-phosphate from Crude Glycerol Using Acid Phosphatases and Phosphate.


ABSTRACT: Glycerol is a byproduct of biodiesel production and is generated in large amounts, which has resulted in an increased interest in its valorization. In addition to its use as an energy source directly, the chemical modification of glycerol may result in value-added derivatives. Herein, acid phosphatases employed in the synthetic mode were evaluated for the enzymatic phosphorylation of glycerol. Nonspecific acid phosphatases could tolerate glycerol concentrations up to 80?wt?% and pyrophosphate concentrations up to 20?wt?% and led to product titers up to 167?g?L-1 in a kinetic approach. In the complementary thermodynamic approach, phytases were able to condense glycerol and inorganic monophosphate directly. This unexpected behavior enabled the simple and cost-effective production of rac-glycerol-1-phosphate from crude glycerol obtained from a biodiesel plant. A preparative-scale synthesis on a 100?mL-scale resulted in the production of 16.6?g of rac-glycerol-1-phosphate with a reasonable purity (?75?%).

SUBMITTER: Tasnadi G 

PROVIDER: S-EPMC7187357 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature

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Preparative-Scale Enzymatic Synthesis of rac-Glycerol-1-phosphate from Crude Glycerol Using Acid Phosphatases and Phosphate.

Tasnádi Gábor G   Staśko Marcin M   Ditrich Klaus K   Hall Mélanie M   Faber Kurt K  

ChemSusChem 20200227 7


Glycerol is a byproduct of biodiesel production and is generated in large amounts, which has resulted in an increased interest in its valorization. In addition to its use as an energy source directly, the chemical modification of glycerol may result in value-added derivatives. Herein, acid phosphatases employed in the synthetic mode were evaluated for the enzymatic phosphorylation of glycerol. Nonspecific acid phosphatases could tolerate glycerol concentrations up to 80 wt % and pyrophosphate co  ...[more]

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