The metabolism of di(2-ethylhexyl)phthalate in the earthworm Lumbricus terrestris
- PMID: 8098688
- DOI: 10.1016/0742-8413(93)90045-m
The metabolism of di(2-ethylhexyl)phthalate in the earthworm Lumbricus terrestris
Abstract
1. Earthworms can hydrolyze di-(2-ethylhexyl) phthalate (DEHP) to mono-2-ethylhexyl phthalate (MEHP) and phthalic acid (PA). 2. They apparently cannot produce the side-chain-oxidized derivatives of MEHP that constitute the major DEHP metabolites in higher animals. 3. With the assistance of intestinal bacterial Pseudomonas, the worm-derived PA is degraded through protocatechuic and beta-carboxymuconic acids to CO2. 4. There is an indication of a second pathway for degradation of PA leading through benzoic acid.