Metabolites from the biodegradation of 1,6-hexanediol dibenzoate, a potential green plasticizer, by Rhodococcus rhodochrous

Journal of Mass Spectrometry : JMS
Azadeh Kermanshahi PourJim A Nicell

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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Citations

Nov 8, 2014·Applied Microbiology and Biotechnology·Hanno C ErythropelViviane Yargeau
Jan 22, 2010·The Science of the Total Environment·Hervé GauthierDavid G Cooper
Aug 12, 2009·Chemosphere·Azadeh Kermanshahi pourJim A Nicell
Jul 4, 2012·The Science of the Total Environment·Joshua KastnerViviane Yargeau
Jun 2, 2018·Environmental Science and Pollution Research International·Shiwei JinFangxing Yang
Apr 10, 2019·Polymers·Roya JamaraniMilan Marić

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