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Št. zadetkov: 8
Enzyme mediated coupling of protein-based biomaterials onto wool fibres
Suzana Jus, Georg M. Gübitz, Vanja Kokol
Objavljeni povzetek znanstvenega prispevka na konferenci
Oznake: wool protein fibres;tyrosinase;grafting;
Enzyme mediated coupling of protein-based biomaterials onto wool fibres
Leto: 2008 Vir: Fakulteta za strojništvo (UM FS)
Oxidoreductase enzymes as alternative to conventional reduction in dyeing processes with indigoid dyes
Mojca Božič, Georg M. Gübitz, Vanja Kokol
Doktorska disertacija
Oznake: redukcijska barvila;indigoidna barvila;barvanje;tekstilna tehnologija;encimska redukcija;oksidoreduktaze;biotehnologija;
Konvencionalni postopek barvanja z indigoidnimi redukcijskimi barvili vključuje kemično redukcijo barvil v leuko vodotopno obliko, ki poteka v visoko alkalnem mediju (pH 11-14) ob prisotnosti močnih reducentov (večinoma natrijev ditionit, Na2S2O4). Pri tem se tvorijo velike količine toksičnih kemika ...
Leto: 2010 Vir: Fakulteta za strojništvo (UM FS)
Tyrosinase catalysed coupling of functional molecules onto protein fibres
Suzana Jus, Vanja Kokol, Georg M. Gübitz
Izvirni znanstveni članek
Oznake: tekstilna vlakna;volna;volnena vlakna;tirozinaza;kofeinska kislina;klorogenska kislina;vezanje;kemična modifikacija vlaken;textile fibres;wool fibers;tyrosinase;caffeic acid;chlorogenic acid;grafting;chemical modification of fibres;
Grafting, using oxidative enzymes shows a high potential for wool fibres funktionalisation. In this work we attempt to graft on wool fibres with phenolic antioxidants order to introduce and improve the properties of the fibre. The approach of tyrosinase to oxidize tyrosine residues in wool proteins ...
Leto: 2008 Vir: Fakulteta za strojništvo (UM FS)
Process of dyeing cellulose and polyamide textile materials with enzyme reduced indigo
Mojca Božič, Georg M. Gübitz, Vanja Kokol
Patent
Oznake: barvanje tekstilij;poliamidna vlakna;encimi;indigo barvilo;patenti;
This invention concerns an ecologically friendly process of indigo (C.I. Vat Blue 1 ) dyeing of cellulose and polyamide-containing textile material with possibility of reusing (three or more times) the enzyme reduction dyeing bath. Procedure of dyeing cellulose and polyamide textile materials with e ...
Leto: 2009 Vir: Fakulteta za strojništvo (UM FS)
Tyrosinase-catalysed coating of wool fibres with different protein-based biomaterials
Suzana Jus, Vanja Kokol, Georg M. Gübitz
Izvirni znanstveni članek
Oznake: tekstilna vlakna;volna;encimi;tirozinaza;antimikrobne lastnosti;proteini;kemična modifikacija vlaken;textile fibres;wool;protein substrates;tyrosinase;enzymatic coupling;antimicrobial properties;coating;
The potential of tyrosinases to activate tyrosine residues of wool protein fibres for cross-linking with different materials like collagen, elastin and gelatine was assessed. Natural fibres like wool offer an excellent environment for the growth of micro-organisms when the conditions like moisture, ...
Leto: 2009 Vir: Fakulteta za strojništvo (UM FS)
ǂThe ǂinfluence of enzymatic treatment on wool fibre properties using PEG-modified proteases
Suzana Jus, Marc Schroeder, Georg M. Gübitz, Elisabeth Heine, Vanja Kokol
Izvirni znanstveni članek
Oznake: volnena vlakna;proteolitski encimi;encimske modifikacije;sorpcija barve;morfologija vlaken;wool fibres;proteolytic enzymes;enzyme modification;felting;dye sorption;protein hydrolysis;XPS-analysis;fibre morphology;
The main contribution of the presented work was to introduce the use of proteases modified with the soluble polymer polyethylene glycol (PEG) in the bio-finishing process of wool fibres, to target enzyme action to the outerparts of wool fibres, i.e. to avoid the diffusion and consequent destroying o ...
Leto: 2007 Vir: Fakulteta za strojništvo (UM FS)
ǂA ǂnovel metalloprotease from Bacillus cereus for protein fibre processing
Fernanda de Sousa, Suzana Jus, Anita Erbel, Vanja Kokol, Artur Cavaco-Paulo, Georg M. Gübitz
Izvirni znanstveni članek
Oznake: plemenitenje tekstilij;enzimska modifikacija;volnena vlakna;encimi;Bacilus cereus;proteaze;specifičnost;kinetika;metaloproteaza;textile finishing;enzymatic modification;wool fibre;enzymes;specificity;kinetics;metalloprotease;
A novel protease produced by Bacillus cereus grown on wool as carbon and nitrogen source was purified. B. cereus protease is a neutral metalloprotease with a molecular mass of 45.6 kDa. The optimum activity was at 45 °C and pH 7.0. The substrate specificity was assessed using oxidized insulin B-chai ...
Leto: 2007 Vir: Fakulteta za strojništvo (UM FS)
Synergistic chemo-enzymatic hydrolysis of poly (ethylene terephthalate) from textile waste
Felice Quartinello, Simona Vajnhandl, Julija Volmajer Valh, Thomas Farmer, Bojana Vončina, Aleksandra Lobnik, Enrique Herrero Acero, Alessandro Pellis, Georg M. Gübitz
Izvirni znanstveni članek
Oznake: tekstilni odpadki;recikliranje odpadkov;textile waste;waste recycling;
Due to the rising global environment protection awareness, recycling strategies that comply with the circular economy principles are needed. Polyesters are among the most used materials in the textile industry; therefore, achieving a complete poly(ethylene terephthalate) (PET) hydrolysis in an envir ...
Leto: 2017 Vir: Fakulteta za kemijo in kemijsko tehnologijo (UM FKKT)
Št. zadetkov: 8
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