Hydroxylation and further oxidation of Δ9-tetrahydrocannabinol by alkane-degrading bacteria

Hassan Rashidi, Muhammad T. Akhtar, Frank Van der Kooy, Robert Verpoorte, Wouter A. Duetz

    Research output: Contribution to journalArticlepeer-review

    Abstract

    The microbial biotransformation of Δ9-tetrahydrocannabinol was investigated using a collection of 206 alkane-degrading strains. Fifteen percent of these strains, mainly gram-positive strains from the genera Rhodococcus, Mycobacterium, Gordonia, and Dietzia, yielded more-polar derivatives. Eight derivatives were produced on a mg scale, isolated, and purified, and their chemical structures were elucidated with the use of liquid chromatography-mass spectrometry, 1H-nuclear magnetic resonance (1H-NMR), and two-dimensional NMR (1H-1H correlation spectroscopy and heteronuclear multiple bond coherence). All eight biotransformation products possessed modified alkyl chains, with hydroxy, carboxy, and ester functionalities. In a number of strains, β-oxidation of the initially formed C5 carboxylic acid led to the formation of a carboxylic acid lacking two methylene groups.
    Original languageEnglish
    Pages (from-to)7135-7141
    Number of pages7
    JournalApplied and Environmental Microbiology
    Volume75
    Issue number22
    DOIs
    Publication statusPublished - 2009

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