Bisphenol A and metabolites released by biodegradation of polycarbonate in seawater

被引:30
作者
Artham, Trishul [1 ]
Doble, Mukesh [1 ]
机构
[1] Indian Inst Technol, Dept Biotechnol, Madras 600036, Tamil Nadu, India
关键词
Biodegradation; Bisphenol A; Marine microorganisms; Marine pollution; Metabolite identification; Polycarbonate; DEGRADATION; SPECTROSCOPY; ENVIRONMENT; BPA;
D O I
10.1007/s10311-011-0324-4
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
This is the first report of bisphenol A release from polycarbonate during biodegradation by marine microorganisms. Bisphenol A is a monomer in polycarbonate and an endocrine disruptor toxic for marine organisms. Biodegradation of polycarbonate is poorly documented. Here, we have tested the possible release of bisphenol A and metabolites during biodegradation of polycarbonate by marine microorganisms. Polycarbonate degradation was carried out in vitro using a mixed marine microbial consortium isolated from the Bay of Bengal, India, 1 year under controlled laboratory conditions. The degradation was monitored by elemental analysis (EA), Fourier transform infrared spectroscopy (FTIR), nuclear magnetic resonance spectroscopy (NMR), and gas chromatography-mass spectrometry (GC-MS). The organic soluble metabolites were analyzed by high-performance liquid chromatography (HPLC). We found that bisphenol A was released. The amount of bisphenol A released during 1 year is higher than the half-maximal effective concentration (EC50) values reported for marine organisms. We also identified the following bisphenol A metabolites: 4-hydroxyacetophenone, 4-hydroxybenzaldehyde, and 4-hydroxybenzoic acid. Polycarbonate biodegradation was evidenced by gravimetric weight loss and Fourier transform infrared spectroscopy. The reduction of methyl and carbonyl indices suggests oxidation and hydrolysis of the polymer, respectively. 2D NMR showed an aromatic C-C cleavage.
引用
收藏
页码:29 / 34
页数:6
相关论文
共 23 条
[1]   BISPHENOL-A - ACUTE AQUATIC TOXICITY [J].
ALEXANDER, HC ;
DILL, DC ;
SMITH, LW ;
GUINEY, PD ;
DORN, P .
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY, 1988, 7 (01) :19-26
[2]  
Artham T., 2008, OPEN MACROMOL J, V2, P43
[3]   Biodegradation of aliphatic and aromatic polycarbonates [J].
Artham, Trishul ;
Doble, Mukesh .
MACROMOLECULAR BIOSCIENCE, 2008, 8 (01) :14-24
[4]   Fouling and Degradation of Polycarbonate in Seawater: Field and Lab Studies [J].
Artham, Trishul ;
Doble, Mukesh .
JOURNAL OF POLYMERS AND THE ENVIRONMENT, 2009, 17 (03) :170-180
[5]   Biofouling and stability of synthetic polymers in sea water [J].
Artham, Trishul ;
Sudhakar, M. ;
Venkatesan, R. ;
Nair, C. Madhavan ;
Murty, K. V. G. K. ;
Doble, Mukesh .
INTERNATIONAL BIODETERIORATION & BIODEGRADATION, 2009, 63 (07) :884-890
[6]  
Babanalbandi A, 1998, POLYM ADVAN TECHNOL, V9, P62, DOI 10.1002/(SICI)1099-1581(199801)9:1<62::AID-PAT735>3.0.CO
[7]  
2-T
[8]   Determination of bisphenol-A in reusable polycarbonate food-contact plastics and migration to food-simulating liquids [J].
Biles, JE ;
McNeal, TP ;
Begley, TH ;
Hollifield, HC .
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 1997, 45 (09) :3541-3544
[9]   The pollution of the marine environment by plastic debris: a review [J].
Derraik, JGB .
MARINE POLLUTION BULLETIN, 2002, 44 (09) :842-852
[10]   Photodegradation of bisphenol A polycarbonate [J].
Diepens, Marjolein ;
Gijsman, Pieter .
POLYMER DEGRADATION AND STABILITY, 2007, 92 (03) :397-406