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1
100%
Chemical and Process Engineering
PL Badano biosyntezę lakazy z udziałem szczepu Cerrena unicolor w zależności od warunków procesowych. Produkcję enzymu prowadzono w fermentorze, stosując różne szybkości mieszania i różną intensywność napowietrzania. Stwierdzono, że zdolność wytwarzania lakazy była związana z obecnością tlenu rozpuszcz[...]
EN Laccase biosynthesis by Cerrena unicolor was investigated in various process conditions. The enzyme was produced in a fermenter at various stirring rates and aeration intensities. It was found that laccase productivity depends on the presence of dissolved oxygen in a substrate.
2
88%
Materials Science Poland
2009 Vol. 27, No. 3 684--692
EN Biomolecules can often be incorporated and immobilized into Langmuir-Blodgett (LB) films by using covalent immobilization of proteins with glutaraldehyde. Laccase from Cerrena Unicolor was incorporated into an LB film deposited on a glass substrate. The samples fabricated in such a way can be used f[...]
3
88%
Inżynieria i Aparatura Chemiczna
2005 Nr 4s 86-87
EN The study aimed at investigation of production conditions of laccase from Cerrena unicolor. An influence of storage conditions on the enzyme stability was also determined.
4
75%
Inżynieria i Aparatura Chemiczna
2009 Nr 3 63-64
PL Badano odbarwianie roztworów wybranych barwników przez podłoże po uprawie boczniaka ostrygowatego zawierające lakazę. Zastosowano trzy barwniki: Acid Blue 62, Acid Red 27 i Reactive Blue 81. Stwierdzono, że odbarwianie zachodziło na drodze fizycznej sorpcji barwnika na powierzchni podłoża oraz katal[...]
EN Decolorization of water solutions of dyes by laccase from subsoil after cultivation of Pleurotus ostreatus was studied. Three dyes were applied: Acid Blue 62, Acid Red 27 and Reactive blue 81. It was observed that decolorization occurred as a result of physical sorption of dye on the subsoil surface[...]
5
75%
Bulletin of the Polish Academy of Sciences. Chemistry
EN Results of ESR measurements of the kraft pulp lignin during its oxidation with laccase and the properties of the bleached pulp are presented.
6
75%
Inżynieria i Aparatura Chemiczna
2015 Nr 4 148--149
PL Przeprowadzono badania dotyczące frakcjonowania pianowego lakazy z płynu pohodowlanego szczepu Cerrena unicolor. Zbadano wpływ pH oraz dodatku bromku cetylotrimetyloamoniowego na podział międzyfazowy enzymu oraz na jego odzysk w kondensacie piany, jak również zmiany w efektywności przenoszenia lakaz[...]
EN Experiments regarding foam fractionation of laccase from culture supernatant of Cerrena unicolor strain were conducted. Influences of pH value and cetrimonium bromide addition on partitioning coefficient and yields in the foamate were investigated. Additionally, changes in effectiveness of laccase t[...]
7
75%
Inżynieria i Aparatura Chemiczna
2015 Nr 4 211--212
PL Przedstawione badania miały na celu porównanie procesu wielokrotnej biotransformacji wybranego związku aromatycznego w barwny produkt o potencjalnym zastosowaniu jako barwnik tekstylny, z zastosowaniem lakazy grzybowej, unieruchomionej na nośnikach porowatych. Spośród szeregu badanych nośników wyłon[...]
EN The aim of presented studies was a comparison of efficiency of selected aromatic compounds biotransformation into colour compounds, which potentially may be used as textile dyes, applying fungal laccase immobilized on porous carriers as biocatalyst. A carrier showing the best results of enzyme immob[...]
8
75%
Chemical and Process Engineering
2016 Vol. 37, nr 2 269--280
EN Culture supernatant containing laccase produced by Cerrena unicolor strain was used to examine laccase partitioning between phases in an aqueous two-phase system. The investigated system consisted of polyethylene glycol 3000 and sodium phosphate buffer adjusted to pH = 7. Influence of severa[...]
9
75%
Inżynieria i Aparatura Chemiczna
2005 Nr 4s 29-30
EN The aim of research was to determine an effect of inoculum form and incubation time on the enzymatic activity of C. unicolor strain that produces laccase in submerged culture conditions. Inoculum used in the experiments was a mycelium prepared on solid and liquid substrates. Based on the experimenta[...]
10
75%
Inżynieria i Aparatura Chemiczna
2005 Nr 4s 83-85
EN The study purpose was to determine the effect of temperature on stability of laccase from Cerrena unicolor. An attention was focused on elevated temperatures strongly influencing the enzyme stability in real process. It was stated that the four-parameter model of inactivation, related to the inactiv[...]
11
75%
Drewno : prace naukowe, doniesienia, komunikaty
EN The effects of laccase from the white-rot basidiomycete fungus Trametes versicolor on Norway spruce wood (Pices abies) surface were studied. Experiments were performed at room temperature and at pH 4.6, without the addition of mediators. Biological, chemical and physical properties of the treated wo[...]
12
75%
Polish Journal of Chemistry
EN Oxidation of ortho-aminophenol (1) to 2-amino-3H-phenoxazin-3-one (2) by air,manganese( IV) oxide, hydrogen peroxide or tert-butylhydroperoxide in the presence of different activators including such enzymes as laccase and peroxidase was studied. The most effective oxidants were air/Co(salen), MnO2/2[...]
13
75%
Archives of Environmental Protection
EN The current study was aimed to evaluate the industrial effluents biodegradation potential of an indigenous microorganism which reduced water pollution caused by these effluents. In the present study biodegradation of three textile industrial effluents was performed with locally isolated brown rot fu[...]
14
63%
Fibres & Textiles in Eastern Europe
2007 Nr 4 (63) 86--89
PL Obecnie biotechnologia odgrywa ważną rolę szczególnie w dziedzinie ochrony środowiska. W przemyśle włókienniczym enzymy ze względu na swój ekologiczny charakter są często stosowane w wielu procesach technologicznych. Włókna lnu z powodu swoich właściwości wyróżniają się wśród surowców włókienniczych[...]
EN Presently biotechnology plays an important role especially in the field of environmental protection. In the textile industry enzymes are often used in many technological processes as they are ecological. Flax fibres are special among textile raw materials due to their properties. Flax fibres, beside[...]
15
63%
Chemical and Process Engineering
2012 Vol. 33, nr 4 611--620
EN Extracellular laccase produced by the wood-rotting fungus Cerrena unicolor was immobilised covalently on the mesostructured siliceous foam (MCF) and three hexagonally ordered mesoporous silicas (SBA-15) with different pore sizes. The enzyme was attached covalently via glutaraldehyde (GLA) or by simp[...]
16
63%
Biocybernetics and Biomedical Engineering
2013 Vol. 33, no. 4 235--245
EN Single walled carbon nanotubes (SWCNTs) were equipped with aryl residues by chemical reactions. These insoluble materials were used to substitute classical soluble mediators, which help to transfer electrical charge between the conducting electrode and the redox active center of enzyme molecules. Th[...]
17
63%
Inżynieria i Aparatura Chemiczna
2012 Nr 4 98-100
PL W badaniach nad inaktywacją lakazy w mieszających się z wodą rozpuszczalnikach organicznych wykorzystano etanol, dimetylofomamid, acetonitryl i 2-propanol w stężeniach 0-60% (obj/obj). Na podstawie spadku aktywności enzymu dobrano model seryjny, jako pozwalający odwzorować proces we wszystkich badan[...]
EN In the search on laccase inactivation in water miscible organic solvents, acetonitrile, dimethyl formamide, ethanol and 2-propanol were used in centrations from 0% to 60% (vol/vol). On the base of activity decrease in time, the kinetic model based on series mechanism was selected as the best for pr[...]
18
63%
Inżynieria i Aparatura Chemiczna
2013 Nr 6 523--524
PL Wykorzystanie lakazy do utleniania związków fenolowych w wodach odpadowych uznawane jest za metodę perspektywiczną. Z tego powodu w badaniach zastosowano enzym natywny i immobilizowany do utleniania p-anizydyny, co prowadzi do powstania rodników i ich spontanicznej polimeryzacji. Ułatwia to późniejs[...]
EN Applications of laccase in specialty wastewater treatment were recently increasingly reported. In this work native and immobilized laccase was used for p-anisidine oxidation to form polymerized phenolic compounds that can be easily removed by sedimentation or filtration. It was shown that 10% 2-prop[...]
19
63%
Biocybernetics and Biomedical Engineering
EN The aim of this study was designing of nanostructured bioelectrodes and assembling them into a biofuel cell with no separating membrane. Carbon nanotubes (CNTs) chemically connected with residues of typical mediators, i.e. ferrocene (Fc) and 2,2'-azino-bis-(3-ethylbenzothiazoline)-6-sulfonic acid (A[...]
20
63%
Inżynieria i Aparatura Chemiczna
2009 Nr 3 30-31
PL W niniejszej pracy zbadano aktywność lakazy w obecności trzech cieczy jonowych o różnej hydrofobowości. Stwierdzono, że wpływ cieczy jonowej jest silnie zależny od jej struktury - ciecze hydrofilowe silnie inaktywują enzym, podczas gdy obecność hydrofobowego tetrafluoro-boranu l-metylo-3-butyloimida[...]
EN The activity of laccase in the presence of ionic liquids (ILs) has been examined. Three ILs of different hydrophobicity have been tested. The results obtained clearly show that effect of IL strongly depends on its chemical nature - hydrophilic compounds inactivate vast majority of enzyme, while hydr[...]
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