20.500.12556/DKUM-26145-0d138e4d-cc90-86c4-b309-7327e570f2a4 Tyrosinase catalysed coupling of functional molecules onto protein 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 to quinones, which can further react with free sulfhydryl (thiol), amino or phenolic groups of different substrates was exploited to couple different phenolic antioxidants (caffeic acid and chlorogenic acid) onto the wool fibre proteins. Tyrosinase catalysed reactions were followed by different analytical methods like oxygen consumption, FT-NIR Raman and UV/VIS spectroscopy. It was proved that phenolic compounds used are strongly cross-linked on the wool fibre resulting to an improved antioxidant activity. textile fibres wool fibers tyrosinase caffeic acid chlorogenic acid grafting chemical modification of fibres tekstilna vlakna volna volnena vlakna tirozinaza kofeinska kislina klorogenska kislina vezanje kemična modifikacija vlaken true false false Angleški jezik Angleški jezik Neznano 2012-05-31 12:01:57 2012-05-31 12:01:57 2023-08-16 14:40:20 2024-01-03 03:20:25 2008 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 677.31.016:66.09 12130326 0141-0229 URN:SI:UM:DK:KHBWG2ZP http://dx.doi.org/10.1016/j.enzmictec.2008.02.012 1 https://dk.um.si/Dokument.php?lang=slv&id=35080 Fakulteta za strojništvo 0 0 0