Abstract
The gene encoding human β-carotene-9′,10′-oxygenase, which cleaves the 9′,10′ double bond in β-carotene into β-apo-10′-carotenal, was cloned and expressed in Escherichia coli. Under aqueous conditions, the optimum organic solvent for the formation of detergent micelles was toluene. The optimum pH, temperature, detergent type, and the optimum concentrations of detergent, substrate, and enzyme for β-apo-10′-carotenal production were 8.0, 37°C, Tween 40, 2.4%, 300 mg β-carotene/l, and 0.25 U/ml, respectively. Under the optimum conditions, 43 mg β-apo-10′-carotenal/l was produced after 21 h with a conversion of 14%. This is the first report to describe the enzymatic production of β-apo-10′carotenal.
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This study was supported by a grant (2009-0084490) from the Basic Research Program, Ministry of Education, Science and Technology.
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Kim, YS., Yeom, SJ. & Oh, DK. Production of β-apo-10′-carotenal from β-carotene by human β-carotene-9′,10′-oxygenase expressed in E. coli . Biotechnol Lett 33, 1195–1200 (2011). https://doi.org/10.1007/s10529-011-0556-1
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DOI: https://doi.org/10.1007/s10529-011-0556-1