Hepatic Effects of the Leaching of Phthalate Ester Plasticizer and Silicon

2015 ◽  
pp. 82-89 ◽  
Author(s):  
S. Kevy ◽  
M. Jacobson
Keyword(s):  
Phthalate Ester

Accumulation of phthalate ester plasticizers in lake constance sediments

1980 ◽  
Vol 67 (10) ◽  
pp. 508-510 ◽  
Author(s):  
C. S. Giam ◽  
E. Atlas
Keyword(s):  
Phthalate Ester ◽  
Lake Constance

scholarly journals Effects of prolonged administration of phthalate ester on the liver.

1987 ◽  
Vol 73 ◽  
pp. 251-258 ◽  
Author(s):  
A E Ganning ◽  
U Brunk ◽  
C Edlund ◽  
A Elhammer ◽  
G Dallner
Keyword(s):  
Phthalate Ester ◽  
Prolonged Administration

Self-Assembling Hydrophilic Magnetic Covalent Organic Framework Nanospheres as a Novel Matrix for Phthalate Ester Recognition

2018 ◽  
Vol 10 (31) ◽  
pp. 26539-26545 ◽  
Author(s):  
Yinghua Yan ◽  
Yujie Lu ◽  
Baichun Wang ◽  
Yiqian Gao ◽  
Lingling Zhao ◽  
...  
Keyword(s):  
Phthalate Ester ◽  
Covalent Organic Framework ◽  
Self Assembling ◽  
Organic Framework

Effects of iron (hydr)oxides on the degradation of diethyl phthalate ester in heterogeneous (photo)-Fenton reactions

2019 ◽  
Vol 80 ◽  
pp. 5-13 ◽  
Author(s):  
Wenjuan Shuai ◽  
Cheng Gu ◽  
Guodong Fang ◽  
Dongmei Zhou ◽  
Juan Gao
Keyword(s):  
Diethyl Phthalate ◽  
Phthalate Ester

Biochemical pathway and degradation of phthalate ester isomers by bacteria

2005 ◽  
Vol 52 (8) ◽  
pp. 241-248 ◽  
Author(s):  
J.-D. Gu ◽  
J. Li ◽  
Y. Wang
Keyword(s):  
Aromatic Ring ◽  
Enrichment Culture ◽  
Klebsiella Oxytoca ◽  
Sole Source ◽  
Phthalate Ester ◽  
Ring Cleavage ◽  
Mangrove Sediment ◽  
Individual Species ◽  
Dimethyl Phthalate ◽  
Dimethyl Phthalate Ester

Degradation of dimethyl isophthalate (DMI) and dimethyl phthalate ester (DMPE) was investigated using microorganisms isolated from mangrove sediment of Hong Kong Mai Po Nature Reserve. One enrichment culture was capable of utilizing DMI as the sole source of carbon and energy, but none of the bacteria in the enrichment culture was capable of degrading DMI alone. In co-culture of two bacteria, degradation was observed proceeding through monomethyl isophthalate (MMI) ester and isophthalic acid (IPA) before the aromatic ring opening. Using DMI as the sole carbon and energy source, Klebsiella oxytoca Sc and Methylobacterium mesophilicum Sr degraded DMI through the biochemical cooperation. The initial hydrolytic reaction of the ester bond was by K. oxytoca Sc and the next step of transformation was by M. mesophilicum Sr, and IPA was degraded by both of them. In another investigation, a novel bacterium, strain MPsc, was isolated for degradation of dimethyl phthalate ester (DMPE) also from the mangrove sediment. On the basis of phenotypic, biochemical and 16S rDNA gene sequence analyses, the strain MPsc should be considered as a new bacterium at the genus level (8% differences). This strain, together with a Rhodococcus zopfii isolated from the same mangrove sediment, was able to degrade DMPE aerobically. The consortium consisting of the two species degraded 450mg/l DMPE within 3 days as the sole source of carbon and energy, but none of the individual species alone was able to transform DMPE. Furthermore, the biochemical degradation pathway proceeded through monomethyl phthalate (MMP), phthalic acid (PA) and then protocatechuate before aromatic ring cleavage. Our results suggest that degradation of complex organic compounds including DMI and DMPE may be carried out by several members of microorganisms working together in the natural environments.

Gas Chromatographic Determination of Low Levels of Di-(2-ethylh exyl)phthalate in Soy Oil

1973 ◽  
Vol 56 (1) ◽  
pp. 181-183
Author(s):  
D T Williams
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Chromatographic Determination ◽  
Phthalate Ester ◽  
Gas Chromatography Mass Spectrometry ◽  
Soy Oil ◽  
Chromatography Mass Spectrometry ◽  
Cleanup Procedure ◽  
Layer Chromatography ◽  
Ethylhexyl Phthalate

Abstract Di-(2-ethylhexyl)phthalate can be determined by gas chromatography at a level of 0.3 ppm in soy oil. A cleanup procedure involving epoxidation of soy oil residues with m-chloroperbenzoic acid allows confirmation of the phthalate ester by thin layer chromatography-mass spectrometry or gas chromatography-mass spectrometry.

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