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Chirality Matters: Synthesis and Consumption of the d-Enantiomer of Lactic Acid by Synechocystis sp. Strain PCC6803.

Appl. Environ. Microbiol.. 2019-02; 
AngermayrS Andreas,van der WoudeAniek D,CorredduDanilo,KernRamona,HagemannMartin,HellingwerfKla
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Gene Synthesis … However, in another cyanobacterium, Synechococcus elongatus PCC7942, synthesis of the latter enantiomer has been achieved through the expression of the … The gene cassette was synthesized and directly cloned into pHKH001 at the SacII/EcoRV site by Genscript (NJ, USA … Get A Quote

摘要

Both enantiomers of lactic acid, l-lactic acid and d-lactic acid, can be produced in a sustainable way by a photosynthetic microbial cell factory and thus from CO2, sunlight, and water. Several properties of polylactic acid (a polyester of polymerized lactic acid) depend on the controlled blend of these two enantiomers. Recently, cyanobacterium Synechocystis sp. strain PCC6803 was genetically modified to allow formation of either of these two enantiomers. This report elaborates on the d-lactic acid production achieved by the introduction of a d-specific lactate dehydrogenase from the lactic acid bacterium Leuconostoc mesenteroides into Synechocystis. A typical batch culture of this recombinant strain ... More

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