Transformation of dimethyl phthalate, dimethyl isophthalate and DIMETHYL TEREPHTHALATE (cas 120-61-6) by Rhodococcus rubber Sa and modeling the processes using the modified Gompertz model
-
Add time:09/01/2019 Source:sciencedirect.com
Phthalate ester isomers, including dimethyl phthalate (DMP), dimethyl isophthalate (DMI) and DIMETHYL TEREPHTHALATE (cas 120-61-6) (DMT), were found to be transformed by Rhodococcus rubber Sa isolated from a mangrove sediment using DMT as a carbon source initially. At a concentration of 80 mg l−1, transformation of DMP, DMI and DMT was achieved in 9, 1 and 5 days, respectively. During the hydrolytical transformation of DMP, DMI and DMT, their corresponding intermediates were identified as mono-methyl phthalate (MMP), mono-methyl isophthalate (MMI) and mono-methyl terephthalate (MMT), suggesting that transformation of all three isomers followed an identical biochemical pathway of de-esterification. However, none of the produced monoesters was further transformed by R. rubber Sa and they accumulated in the culture media during incubation. It seems that further transformation of monoesters require a set of hydrolytic enzymes different from those involved in the first transformation reaction. Kinetics of DMT, DMI and DMP transformation was well described by the modified Gompertz model independent of the individual substrate condition or a mixture of the three isomers. Both DMI and DMT were easier transformed substrates than DMP, resulting in higher maximum transformation rate (Rm) and shorter lag time phase (λ) derived from the modified Gompertz model. The modified Gompertz model based on one-substrate system can be used in fitting transformation kinetics of mixture substrate system. Our data suggest that degradation of phthalate diesters involves different enzymes in the hydrolysis of the two identical ester groups.
We also recommend Trading Suppliers and Manufacturers of DIMETHYL TEREPHTHALATE (cas 120-61-6). Pls Click Website Link as below: cas 120-61-6 suppliers
Prev:Alkaline hydrolysis of DIMETHYL TEREPHTHALATE (cas 120-61-6) in the presence of [LiAl2(OH)6]Cl·2H2O
Next:In vitro genotoxicity of DIMETHYL TEREPHTHALATE (cas 120-61-6)) - 【Back】【Close 】【Print】【Add to favorite 】
- Related Information
- Critical evaluation of several techniques for the analysis of phthalates and terephthalates: Application to liquids used in electronic cigarettes09/06/2019
- Transesterification of methyl benzoate and DIMETHYL TEREPHTHALATE (cas 120-61-6) with ethylene glycol over superbases09/05/2019
- Transesterification of Ethylene Carbonate with DIMETHYL TEREPHTHALATE (cas 120-61-6) over Various Metal Acetate Catalysts* 09/04/2019
- Degradation of DIMETHYL TEREPHTHALATE (cas 120-61-6) by Pasteurella multocida Sa and Sphingomonas paucimobilis Sy isolated from mangrove sediment09/03/2019
- In vitro genotoxicity of DIMETHYL TEREPHTHALATE (cas 120-61-6)09/02/2019
- Alkaline hydrolysis of DIMETHYL TEREPHTHALATE (cas 120-61-6) in the presence of [LiAl2(OH)6]Cl·2H2O08/31/2019
- On the loss of a methyl radical from metastable DIMETHYL TEREPHTHALATE (cas 120-61-6) molecular ions08/30/2019
- Removal of basic dyes from aqueous solutions by DIMETHYL TEREPHTHALATE (cas 120-61-6) distillation residue08/29/2019
- Separation Science and EngineeringSolid–liquid equilibrium of DIMETHYL TEREPHTHALATE (cas 120-61-6) (DMT), dimethyl isophthalate (DMI) and dimethyl phthalate (DMP) in melt crystallization process08/28/2019
-
Health and Chemical more >
-
Related Products
- Dimethyl ( )-2,3-O-Isopropylidene-D-tartrate
- Dimethyl ((1-methyl-5-nitro-1H-imidazol-2-yl)methylene)propanedioate
- Dimethyl (2-oxo-3,3-difluoroheptyl)phosphonate
- Dimethyl (2-oxo-4-phenylbutyl)phosphonate
- Dimethyl (2-oxoheptyl)phosphonate
- Dimethyl (2S, 2'S)-1, 1'-((2S, 2'S)-2, 2'-(4, 4'-(biphenyl-4, 4'-diyl)bis(1H-imidazole-4, 2-diyl))bis(pyrrolidine-2, 1-diyl))bis(3-methyl-1-oxobutane-2, 1-diyl)dicarbamate
- Dimethyl (3-phenoxy-2-oxopropyl)phosphonate
- Dimethyl (R)-(+)-methylsuccinate
- Dimethyl (S)-(-)-methylsuccinate
- Dimethyl (S)-3-hydroxy-L-aspartate