Perfluorooctanoic acid (PFOA) (conjugate base perfluorooctanoate) — also known colloquially as C8 — is a perfluorinated carboxylic acid produced and used worldwide as an industrial surfactant in chemical processes and as a material feedstock.It is a product of health concern and subject to regulatory action and voluntary industrial phase-outs.

Degradation of perfluorooctanesulfonate in a laccase-mediator system. Q. Huang. 11:10 ENVR 48. Occurrence and distribution of hydrogen-substituted F-53B and other emerging PFASs in surface waters from China. J. Dai, Y. Pan, H. Zhang, Q. Cui 11:35 ENVR 49.

2019-11-15 2016-05-12 2014-01-08 Full Article. A Sequential Combination of Laccase Pretreatment and Enzymatic Hydrolysis for Glucose Production from Furfural Residues. Hailong Yu, a,b Xiaoli Li, a Yang Xing, a Zhiping Liu, c and Jianxin Jiang a,b, * Furfural residues (FRs) were pretreated with laccase or a laccase-mediator (1-hydroxybenzotriazole, HBT) system to produce fermentable sugar for bioethanol production. Full Article. Laccase, an Emerging Tool to Fabricate Green Composites: A Review.

LMS laccase-mediator system Potential of C. rigida and its laccases in applied processes As mentioned before, C. rigida and its laccases are currently being studied in terms of their ability to degrade and/or detoxify a wide array of compounds such as industrial by-products and/or agricultural wastes. Plant biomass is an abundant renewable resource on Earth. Microorganisms harvest energy from plant material by means of complex enzymatic systems that efficiently degrade natural polymers. Perfluorooctanesulfonate (PFOS) is a compound that has wide applications with extreme persistence in the environment and the potential to bioaccumulate, and could induce adverse effects to ecosystems.

J. Dai, Y. Pan, H. Zhang, Q. Cui 11:35 ENVR 49.

Full Article. A Sequential Combination of Laccase Pretreatment and Enzymatic Hydrolysis for Glucose Production from Furfural Residues. Hailong Yu, a,b Xiaoli Li, a Yang Xing, a Zhiping Liu, c and Jianxin Jiang a,b, * Furfural residues (FRs) were pretreated with laccase or a laccase-mediator (1-hydroxybenzotriazole, HBT) system to produce fermentable sugar for bioethanol production.

Pulp bleaching 2. The following PFOS and PFOA chemicals, with some exceptions, were used as pesticides or as EPA "Inerts" in pesticide products, until they were phased out of use since the story broke in 2000. Similarly, a reaction system composed of the fungal polyester hydrolase HiC and the lipase CalB from Candida antarctica also showed a 7.7‐fold increase in the yield of terephthalate obtained due to the concomitant degradation of MHET catalysed by CalB (Carniel et al., 2016). LMS laccase-mediator system Potential of C. rigida and its laccases in applied processes As mentioned before, C. rigida and its laccases are currently being studied in terms of their ability to degrade and/or detoxify a wide array of compounds such as industrial by-products and/or agricultural wastes.

Microbial toxicity and biodegradability of perfluorooctane sulfonate (PFOS) and shorter PMID: 23245309;Abstract: Performance of a combined system up-flow Blue 71 (DB71) were observed when no external redox mediator was provided .

Perfluorooctanesulfonate degrades in a laccase-mediator system

Use of pesticides is usually related to overproduction of crops in order to overcome worldwide demand of food and alimentary safety. Nevertheless, pesticides are environmental persistent molecules, such as the organochlorine pesticides, which are often found in undesired places. Optimisation of reactive textile dyes degradation by laccase–mediator system Optimisation of reactive textile dyes degradation by laccase–mediator system Tavares, Ana PM; Cristóvão, Raquel O; Loureiro, José M; Boaventura, Rui AR; Macedo, Eugénia A 2008-12-01 00:00:00 INTRODUCTION In the textile industry, colour is applied to finished products through dyeing, resulting in the generation Se hela listan på pubs.rsc.org Number of results to display per page.

The purpose of this work is to study the ability of an industrially available laccase-mediator system to modify and remove lignin during pretreatment of wood (Eucalyptus globulus Summary Matrix assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF-MS) was used to investigate the reaction products obtained by treatment of phenolic substances with the laccase-mediator system, consisting of the enzyme laccase and a low-molecular-weight substance, the so-called mediator. Two mediators, 2,2′-azino-bis(3-ethylbenzothiazoline)-6-sulfonic acid Pretreatment with laccase and a phenolic mediator degrades lignin and enhances saccharification of Eucalyptus feedstock. Alejandro Rico1+, Jorge Rencoretu, José C del Río1, Angel T Martínez2 and Ana Gutiérrez1* Abstract Halogenation in natural and engineering systems Current projects: Transformation of halogen and formation of halogenated byproducts in sulfate radical based oxidation processes.
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• PFOA degradation products in soil are partially fluorinated organic compounds. Perfluorooctanesulfonate Degrades in a Laccase-Mediator System.

Hailong Yu, a,b Xiaoli Li, a Yang Xing, a Zhiping Liu, c and Jianxin Jiang a,b, * Furfural residues (FRs) were pretreated with laccase or a laccase-mediator (1-hydroxybenzotriazole, HBT) system to produce fermentable sugar for bioethanol production. Full Article.
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Plant biomass is an abundant renewable resource on Earth. Microorganisms harvest energy from plant material by means of complex enzymatic systems that efficiently degrade natural polymers.

Perfluorooctanesulfonate (PFOS) is a compound that has wide applications with extreme persistence in the environment and the potential to bioaccumulate, and could induce adverse effects to ecosystems. We investigated the degradation of PFOS by laccase-induced enzyme catalyzed oxidative humification reactions (ECOHRs) using 1-hydroxybenzotriazole (HBT) as a mediator.