Journal
JOURNAL OF BIOTECHNOLOGY
Volume 146, Issue 1-2, Pages 40-44Publisher
ELSEVIER
DOI: 10.1016/j.jbiotec.2010.01.002
Keywords
L-DOPA; Tyrosinase; Electroenzymatic synthesis
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Parkinson's disease is caused by a deficiency of the neurotransmitter dopamine. Since L-DOPA (L-3,4-dihydroxyphenylalanine) is a precursor of dopamine and can pass across the blood-brain barrier, it has been used as a treatment for Parkinson's disease. Hundreds tons of L-DOPA are produced per year, and most of the current supply is produced by a chemical method of asymmetric synthesis. However, the chemical process for L-DOPA synthesis requires an expensive metal catalyst and shows low conversion rates and low enantioselectivity. In this study, we developed a novel technology for the production of L-DOPA, an electroenzymatic synthesis with a tyrosinase-immobilized cathode under the reduction potential of DOPAquinone, which is -530 mV. Compared to other approaches for L-DOPA synthesis reported previously, this electroenzymatic system showed the highest conversion rate and a highly enhanced productivity of up to 95.9% and 47.27 mg l(-1) h(-1), respectively. (C) 2010 Elsevier B.V. All rights reserved.
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