کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6581157 | 1422948 | 2017 | 41 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Removal of bisphenol A by laccases from Pleurotus ostreatus and Pleurotus pulmonarius and evaluation of ecotoxicity of degradation products
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Bisphenol A (BPA) is an endocrine disruptor compound, that is continuously released into the environment and is barely degraded in wastewater treatment plants. In this work, crude laccases from Pleurotus ostreatus and Pleurotus pulmonarius were used for the first time to degrade BPA in aqueous solution. The residual BPA was quantified by HPLC and the BPA metabolites produced by action of the laccases were identified by GC-MS. BPA at 100Â mg/L and 200Â mg/L (0.88Â mmol/L) were 100% and 85% removed, respectively, in a 1Â h reaction by both fungal laccases at a concentration of 8Â U/L. Thirteen aromatic and aliphatic BPA metabolites were identified, including p-isopropenylphenol, methylpent-3-oic acid, ethyl-3-ethoxy propanoate, and 4-ethyl-2-methoxyphenol. The acute BPA toxicity decreased from 85% to less than 5% using the P. ostreatus laccase. On the other hand, P. pulmonarius laccase, did not caused reduction in toxicity, possibly because at least one BPA metabolite was as toxic as the parent compound itself. The results of this study suggest a feasible method for the complete removal of BPA from polluted environments using crude laccase from P. ostreatus.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Journal - Volume 330, 15 December 2017, Pages 1361-1369
Journal: Chemical Engineering Journal - Volume 330, 15 December 2017, Pages 1361-1369
نویسندگان
Emanuelle Neiverth de Freitas, Gisele Adriana Bubna, Tatiane Brugnari, Camila Gabriel Kato, Mariene Nolli, Thalita G. Rauen, Regina de Fátima Peralta Muniz Moreira, Rosely Aparecida Peralta, Adelar Bracht, Cristina G.M. de Souza, Rosane Marina Peralta,