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  • Title: Metabolites from the biodegradation of 1,6-hexanediol dibenzoate, a potential green plasticizer, by Rhodococcus rhodochrous.
    Author: Pour AK, Mamer OA, Cooper DG, Maric M, Nicell JA.
    Journal: J Mass Spectrom; 2009 May; 44(5):662-71. PubMed ID: 19125399.
    Abstract:
    Metabolites from the biodegradation of a potential plasticizer 1,6-hexanediol dibenzoate in the presence of n-hexadecane as a co-substrate by the common soil organism Rhodococcus rhodochrous were identified using GC/MS and Fourier transform mass spectroscopy (FTMS) techniques. Trimethylsilylation of compounds from the biodegradation broth permitted detection of the following metabolites: 1-hexadecyl benzoate, 6-benzoyloxyhexanoic acid, 4-benzoyloxybutanoic acid, 6-benzoyloxyhexan-1-ol and benzoic acid. The presence of these metabolites was confirmed by repeating the biodegradation with 1,6-hexanediol di[(2)H(5)]benzoate, by measurement of their exact masses in FTMS and by comparison with available authentic materials. The results show that biodegradation of 1,6-hexanediol dibenzoate by R. rhodochrous does not lead to the accumulation of persistent metabolites as has been reported for commercial dibenzoate plasticizers.
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