The removal of Diethyl hexyl phthalate (DEHP) and Dibutyl phthalate (DBP) is of great importance due to their potential adverse effects on the environment and human health. In this study, two bionanocomposites prepared by immobilization of Bacillus subtilis esterase by crosslinking to halloysite and supported in chitosan and alginate beads were studied and proposed as a green approach. The esterase immobilization was confirmed by physical-chemical characterization. Bionanocomposite using chitosan showed the best degradation levels in batch tests attaining complete degradation of DBP and around 90% of DEHP. To determine the operational stability and efficiency of the system, two fixed bed reactors filled with both bionanocomposites were carried out operating in continuous mode. Chitosan based bionanocomposite showed the best performance being able to completely remove DBP and more than 85% of DEHP at the different flowrates. These results proved the potential of these synthesized bionanocomposites to effectively remove Phthalic Acid Esters.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.biortech.2022.127990 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Does Bisphenol A (BPA) Exposure Cause Human Diseases?
Biomedicines
November 2024
Rowan-Virtua School of Translational Biomedical Engineering and Sciences and School of Osteopathic Medicine, 2 Medical Center Drive, Stratford, NJ 08084, USA.
Background: Autism spectrum disorders (ASDs), attention-deficit disorder (ADHD), Parkinson's disease (PD), polycystic ovary disease (PCOS), and Alzheimer's disease (AD) have all been linked to exposure to bisphenol A (BPA).
Methods: This paper is a review and discussion of the published literature.
Results: Animal studies have shown BPA to be a broad-spectrum endocrine disruptor.
Exploring the use of gull eggs as bioindicators of phthalate esters exposure.
Environ Res
December 2024
Department of Environmental Chemistry, IDAEA-CSIC, Jordi Girona 18-26, 08034, Barcelona, Catalonia, Spain. Electronic address:
Plastic pollution and associated plasticizers are a global threat affecting aquatic environments. Phthalates are among the most used plasticizers that can impact on fauna due to their endocrine-disrupting properties. The aim of this study was to investigate the use of eggs of Audouin's gull (Larus audouinii) and yellow-legged gull (Larus michahellis) as biomonitors of phthalate exposure.
View Article and Find Full Text PDFEndocrine disruption and male reproductive disorders: unanswered questions.
Hum Reprod
September 2024
Centre for Reproductive Health, Institute for Regeneration & Repair, The University of Edinburgh, Edinburgh, UK.
Maternal exposure to endocrine-disrupting chemicals (EDCs) in human pregnancy is widely considered as an important cause of adverse changes in male reproductive health due to impaired foetal androgen production/action. However, the epidemiological evidence supporting this view is equivocal, except for certain phthalates, notably diethyl hexyl phthalate (DEHP). Maternal phthalate exposure levels associated with adverse reproductive changes in epidemiological studies are several thousand-fold lower than those needed to suppress foetal androgen production in rats, and direct studies using human foetal testis tissue show no effect of high phthalate exposure on androgen production.
View Article and Find Full Text PDFMaternal phthalate exposure and BMI trajectory in children-an 18-year birth cohort follow-up study.
J Expo Sci Environ Epidemiol
July 2024
National Institute of Environmental Health Sciences, National Health Research Institutes, Miaoli, Taiwan.
Background: Obesity is a major health concern worldwide. Previous studies have suggested that phthalate plasticizers are obesogens. However, the relationship between early-life phthalate exposure and long-term obesity development remains unknown.
View Article and Find Full Text PDFMulti-target aptamer assay for endocrine-disrupting phthalic acid ester panel screening in plastic leachates.
Chemosphere
July 2024
Department of Environmental Science and Engineering, Ewha Womans University, Seoul, 03760, Republic of Korea. Electronic address:
A multi-target aptamer assay was developed as a phthalic acid ester (PAE) panel to screen selected PAEs in plastic leachate samples. The panel comprises 13 PAEs (PAE-13), namely dimethyl phthalate, diethyl phthalate, di-n-butyl phthalate, di-n-hexyl phthalate, diisobutyl phthalate, diisononyl phthalate, diisodecyl phthalate, mono-2-ethylhexyl phthalate, di-2-ethylhexyl phthalate, diphenyl phthalate, butyl benzyl phthalate, dicyclohexyl phthalate, and phthalic acid. Herein, we proposed an aptamer assay using a newly truncated aptamer (20-mer) and the 7-aminoactinomycin D fluorophore, which selectively binds to guanine in single-stranded DNA, resulting in increased fluorescence intensity.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!