Biodegradation kinetics of dibenzoate plasticizers and their metabolites
A study of the kinetics of the biodegradation of dibenzoate plasticizers demonstrated the importance of ether bonds and alkyl branches on the rate of biodegradation of plasticizers and their metabolites. Removing the ether bond significantly enhanced the biodegradation rate of the monobenzoates.
Biodegradation kinetics of dibenzoate plasticizers and their metabolites
In particular, the modeling of the degradation kinetics of selected commercial and alternative dibenzoate plasticizers was done to assess the effect of functional groups on environmental persistence by comparing their respective rates of biodegradation.
Biodegradation kinetics of dibenzoate plasticizers and their metabolites
The kinetics of the biodegradation of two commercial plasticizers, diethylene glycol dibenzoate (D (EG)DB) and dipropylene glycol dibenzoate (D (PG)DB), as well as two alternative...
Mechanisms of biodegradation of dibenzoate plasticizers
Biodegradation mechanisms were elucidated for three dibenzoate plasticizers: diethylene glycol dibenzoate (D (EG)DB), dipropylene glycol dibenzoate (D (PG)DB), both of which are...
Jim A Nicell | Faculty of Engineering - McGill University
Biodegradation, fate and impacts of xenobiotics (e.g., plasticizers, pharmaceuticals and other emerging contaminants) in the environment Sewer epidemiology Professional activities: Dean, Faculty of Engineering, McGill University (July 1, 2013 to June 30, 2018) Full Professor, Department of Civil Engineering, McGill University
- Does diethylene glycol dibenzoate biodegrade?
- No articles found. The kinetics of the biodegradation of two commercial plasticizers, diethylene glycol dibenzoate (D (EG)DB) and dipropylene glycol dibenzoate (D (PG)DB), as well as two alternative plasticizers, 1,3-propanediol dibenzoate and 2,2-methyl-propyl-1,3-propanediol dibenzoate, were investigated in an aerated bioreactor.
- Are dibenzoate plasticizers biodegradable?
- Kinetic models were developed in order to describe the biodegradation of a selection of dibenzoate plasticizers and to evaluate their relative biodegradability. The system used for this kinetic study consisted of resting cells of R. rhodochrous, previously grown on hexadecane in a bioreactor.
- Does ether function affect the biodegradation mechanisms of dibenzoate plasticizers?
- The two most important commercial dibenzoate plasticizers, diethylene glycol dibenzoate (D (EG)DB) and dipropylene glycol dibenzoate (D (PG)DB), both contain ether functions. The objective of this study was to investigate the effect of the ether function on the biodegradation mechanisms of dibenzoate plasticizers.
- Why are monobenzoates biodegraded quickly?
- The rapid biodegradation of monobenzoates released from microbial hydrolysis of alternative dibenzoate plasticizers was attributed to the lack of an ether bond in these compounds.
- What is the biodegradation of plasticizers D (EG)DB and D (PG)MB?
- The biodegradation of the commercial plasticizers D (EG)DB and D (PG)DB by the yeast, R. rubra, resulted in the formation of substantial amounts of the metabolites, diethylene glycol monobenzoate (D (EG)MB) or dipropylene glycol monobenzoate (D (PG)MB) (Gartshore et al., 2003).
- How is plasticizer biodegradation modeled?
- Biodegradation of plasticizers and their associated metabolites were modeled using a Monod-type kinetic model. Significant differences between the biodegradation of commercial and alternative plasticizers were observed both in the biodegradation pathway and the biodegradation rates of monobenzoate metabolites.
