DiVA - Sökresultat - DiVA Portal

J. Dai, Y. Pan, H. Zhang, Q. Cui 11:35 ENVR 49. feedstock. This consisted of a sequence of four laccase-mediator treatments, each followed by an alkaline peroxide extraction step. The lignin contents of eucalypt samples after the whole laccase-mediator sequence were determined (as Klason lignin) and compared with their respective controls (Table 1). The amount of lignin decreased consid- Journal of Chemical Technology and Biotechnology J Chem Technol Biotechnol 83:1609–1615 (2008) Optimisation of reactive textile dyes degradation by laccase–mediator system ´ ao, Ana PM Tavares, Raquel O Cristov ˜ Jose´ M Loureiro, Rui AR Boaventura and ∗ ´ Eugenia A Macedo Laboratory of Separation and Reaction Engineering (LSRE), Departamento de Engenharia Qu´ımica, Faculdade de 2021-02-20 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 Finally, the elimination of sterols by was kept at 300 8C. The injector was temperature programmed from 120 8C the laccase-mediator system and by a chlorine dioxide stage were (0.1 min) to 380 8C at a rate of 200 8C min 1 and held until the end of the analysis. compared.

Perfluorooctanesulfonate degrades in a laccase-mediator system

It was added to Annex B of the Stockholm Convention on Persistent Organic Pollutants in May 2009. laccase-mediator systems for paper pulp delignification [18,19], pitch control [20], polymer modification [21], other applications in the forest industry [22], and bioethanol production from physically and/or chemically pretreated lignocellulose [23]. Recently, the ability of high redox-potential laccases from basidiomycetes of the Qi Luo's 15 research works with 239 citations and 1,481 reads, including: Perfluorooctanesulfonate Degrades in a Laccase-Mediator System Qi Luo's research while affiliated with University of 21. Luo Q., Yan X., Lu J., Huang Q., 2018, Perfluorooctanesulfonate degrades in a laccase-mediator system, Environmental Science and Technology, 52, 10617-10626.

Hur kan PFAS-ämnen avlägsnas i vattenverken? - Rapporter

The use of laccase-mediator systems has since not focused on plastic, but on bioremediation of other compounds such as perfluoroctanesulfonate, carbamazepine, and non-steroidal anti-inflammatory drugs (NSAIDs) (Luo et al., 2018; Naghdi et al., 2018; Apriceno et al., 2019). The LMS causes polymerization of phenolic substrates in the initial phase of the reaction, but then degrades the initially formed polymers. The extensive breakdown of this oligomeric and polymeric material occurs exclusively in the presence of both components, mediator and laccase. Due to its complexity, the degradation of lignocellulosic waste is a great challenge for sustainable development.

DiVA - Sökresultat - DiVA Portal

The lignin contents of eucalypt samples after the whole laccase-mediator sequence were determined (as Klason lignin) and compared with their respective controls (Table 1). The amount of lignin decreased consid- Journal of Chemical Technology and Biotechnology J Chem Technol Biotechnol 83:1609–1615 (2008) Optimisation of reactive textile dyes degradation by laccase–mediator system ´ ao, Ana PM Tavares, Raquel O Cristov ˜ Jose´ M Loureiro, Rui AR Boaventura and ∗ ´ Eugenia A Macedo Laboratory of Separation and Reaction Engineering (LSRE), Departamento de Engenharia Qu´ımica, Faculdade de 2021-02-20 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 Finally, the elimination of sterols by was kept at 300 8C. The injector was temperature programmed from 120 8C the laccase-mediator system and by a chlorine dioxide stage were (0.1 min) to 380 8C at a rate of 200 8C min 1 and held until the end of the analysis. compared. 2013-12-01 Natural fibres have a high potential as reinforcement of polymer matrices, as they combine a high specific strength and modulus with sustainable production and reasonable prices. Modifying the fibre surface is a common method to increase the adhesion and thereby enhance the mechanical properties of composites.

Perfluorooctanesulfonate degrades in a laccase-mediator system

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. Plant biomass is an abundant renewable resource on Earth.
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Bioenerg. Res. 9, 917–930 (2016).

A double-layer permeable reactive barrier (DL-PRB) system was originally proposed for the study for inducing in situ ECHOR reactions. The DL-PRB system was comprised of an oxidant releasing material layer followed by a layer of quartz sands immobilized with humification enzymes. Pretreatment with laccase and a phenolic mediator degrades lignin and enhances saccharification of Eucalyptus feedstock.
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Hur kan PFAS-ämnen avlägsnas i vattenverken? - Rapporter

Lignocellulose is the most promising feedstock to be used in biorefineries. Perfluorooctanesulfonate* PFOS 1763 -23 1 Perfluoroheptanesulfonate PFHpS 375-92-8 Degrades to some extent in the environment No Yes •Municipal systems >10,000 and selected smaller systems •Detected in ~4%, exceeded EPA LHAs in ~1.3% •High RLs and However, there has been little discussion of the reaction mechanisms for cleavage of model compounds with a non-phenolic β-O-4 lignin substructure by laccase–mediator couples. Because the β- O -4 substructure is the major interphenylpropane unit in lignin, elucidation of the degradation pathways for this structure is very important. Enzymatic plastic conversion has emerged recently as a potential adjunct and alternative to conventional plastic waste management technology.