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Metabolomics-Guided Analysis of the Biocatalytic Conversion of Sclareol to Ambradiol by <i>Hyphozyma roseoniger</i>
oleh: Efficient N. Ncube, Paul A. Steenkamp, Chris W. van der Westhuyzen, Lucia H. Steenkamp, Ian A. Dubery
Format: | Article |
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Diterbitkan: | MDPI AG 2022-01-01 |
Deskripsi
The biocatalytic conversion of sclareol to ambradiol, a valuable component in the fragrance industry, using whole-cell biotransformation by the dimorphic yeast <i>Hyphozyma roseoniger</i>, was investigated using metabolomics tools. An integrated approach was used to identify and quantify the participating intermediates in this bioconversion using both nuclear magnetic resonance (NMR) spectroscopy and liquid chromatography coupled to mass spectrometry (LC–MS). This study entailed growth stage-dependent analysis of <i>H. roseoniger</i> suspensions grown in batch culture over a 14-day period, beginning with a three-day induction period using 20 mg/200 mL sclareol, followed by a further 1 g/200 mL sclareol dose to enable ambradiol production. The progress of the bioconversion and the resulting dynamic changes to the metabolome were monitored using NMR analysis and semi-targeted LC–MS metabolomics. This outlined the molecular conversions occurring within the matrix and no novel intermediates participating in the sclareol to ambradiol conversion could be identified. This study presents new findings about the transformative capabilities of <i>H. roseoniger</i> as a whole cell biocatalyst, highlighting its potential utility in similar applications.