Bacteria-driven phthalic acid ester biodegradation: Current
Phthalic acid esters (PAEs) are the typical synthetic organic compounds mainly produced from phthalic anhydride and appropriate alcohol (Graham, 1973).Since the first production in 1920 s, PAEs have been widely used as plasticizers in the manufacture and processing of plastic goods, such as food wrappings, children’s toys, medical devices, and agricultural films (Kang et al., 2012, Kimber
Research progress on removal of phthalates pollutants
Phthalates were commonly used as plasticizers to improve the flexibility and processability of polymer materials, but their existence and removal in various environments had become a major problem. Phthalates had endocrine disrupting effects and affect human reproductive health and physical development.
Effect of Toxic Phthalate-Based Plasticizer on the
Here, using an established method for continuous biodegradation monitoring, we investigated the impact of a commonly used plasticizer, dibutyl phthalate (DBP), on the biodegradation of poly (3-hydroxybutyrate- co -3-hydroxyvalerate) (PHBV) in soil. The presence of DBP delayed the initial stage of PHBV biodegradation but then accelerated
Fungal biodegradation of phthalate plasticizer in situ - Springer
Webb et al. ( 1999) investigated the physicochemical nature of adhesion of deteriogenic fungus Aureobasidium pullulans on to both plasticized (pPVC) and unplasticized PVC, which showed that the myco-adherence to pPVC was much higher. Sabev et al. ( 2006) also investigated the fungal colonization on dioctyl phthalate-pPVC buried in grassland and
Biodegradation of Di (2-Ethylhexyl) Phthalate by a novel
Di-(2-ethylhexyl) phthalate (DEHP) is one of the phthalic acid ester representatives and is mainly used as a plasticizer to endow polyvinyl chloride plastics with desirable physical properties. It is synthesized in massive amounts worldwide. Many studies have proved the adverse effects of DEHP on hu
- What is biodegradation of phthalates?
- 5.1. Bacterial degradation of phthalates Biodegradation is one of the safest processes to eliminate phthalate contamination from the environment where microbes convert the toxic phthalates into relatively less toxic or nontoxic forms.
- Is phthalate biodegradation pronounced in WWTP?
- Roslev et al. (2007) reported a pronounced biodegradation of different phthalates in WWTP where the overall microbial degradation of DMP, DBP, BBP, and DEHP was estimated to be 93%, 91%, 90%, and 81%, respectively. First-order coefficiencies for DEHP degradation ranged in 19.2–31.2 × 10 −2 day −1 under various conditions.
- Is microbial degradation a natural way to treat phthalates?
- Under natural conditions, photodegradation and hydrolysis rates of phthalates are often very slow; therefore, microbial degradation is a natural way to treat these pollutants.
- How long can phthalates be biodegraded?
- These eight phthalates could be biodegraded in the river sediment with the average half lives of 2.5–14.8 (aerobically) and 14.4–34.7 days (anaerobically). Generally, the biodegradation half-lives are ranged from less than 1 day to 2 weeks (Amir et al. 2005).
- Can phthalate pollution and biodegradation be sustainable?
- Thus, this work will provide an overview of phthalate pollution and biodegradation as a sustainable approach for their removal from major environmental matrixes, along with the challenges and future research perspectives for the clean-up of phthalates. Phthalates are phthalic acid's dialkyl or alkyl aryl esters.
- What is primary biodegradation of phthalic acid (PAE)?
- According to the literature (Tao et al. 2019 ), primary biodegradation of PAEs mainly has two ways, (1) hydrolysis to monoethyl phthalate (MEP) and then to phthalic acid (PA); (2) de-methylation or transesterification to form EMP, and then, de-methylation to form DMP or direct hydrolysis to PA.
