o:18902 Redoks svojstva slobodnih aminokiselina i indola kao model-jedinjenja u Fentonovom sistemu doktorska disertacija Redox properties of free amino acids and indole as a model compound in the fenton system : doctoral dissertation sr U ovoj tezi ispitivane su antioksidativne aktivnosti (AA) slobodnih aminokiselina (glicin, alanin, prolin, valin, izoleucin, leucin, fenilalanin, triptofan, tirozin, serin, treonin, asparagin, glutamin, histidin, asparaginska kiselina, glutaminska kiselina, lizin, arginin, cistein i metionin, homocistein, hidroksiprolin, norleucin, 2-aminobutanska kiselina i 3,4-dihidroksifenilalanin) u Fentonovom sistemu. Redosled reaktivnosti aminokiselina u reakciji sa hidroksil-radikalom, antioksidativne aktivnosti (HO•) bio je sledeći: Trp > norleucin > Phe, Leu > Ile > His >3,4-dihidroksifenilalanin, Arg > Val > Lys, Tyr, Pro > hidroksiprolin > α-aminobutanska kiselina > Gln, Thr, Ser > Glu, Ala, Gly, Asn, Asp. Aminokiseline koje sadrže sumpor su u reakciji sa hidroksil-radikalom davale više različitih radikalskih vrsta koje su ispitivane EPR metodom sa spinskim hvatačima... In this thesis antioxidative activities (AA) of free L-amino acids (glycine, alanine, proline, valine, isoleucine, leucine, phenylalanine, tryptophane, tyrosine, serine, threonine, asparagine, glutamine, histidine, aspartic acid, glutamic acid, lysine, arginine, cystein and methionine, homocysteine, hydroxyproline, norleucine, α-aminobutyric acid and 3,4-dihydroxyphenylalanine) against Fenton system-mediated hydroxyl radical (HO•) production in aqueous solution were studied. The rank order according to AA was: Trp > norleucine > Phe, Leu > Ile > His >3,4-dihydroxyphenylalanine, Arg > Val > Lys, Tyr, Pro > hydroxyproline> α-aminobutyric acid > Gln, Thr, Ser > Glu, Ala, Gly, Asn, Asp. Sulfur-containing FAA generated different secondary reactive products, which were discriminated by the means of electron paramagnetic resonance spin-trapping spectroscopy... Hemija - Neorganska hemija / Chemistry - Inorganic chemistry Datum odbrane: 24.09.2018. slobodne aminokiseline, triptofan, indol, redoks osobine, antioksidativnost, Fentonov sistem, hidroksil-radikal, gvožđe, otpadne vode, UV zračenje free amino acids, tryptophan, indole, redox properties, antioxidant, Fenton system, hydroxyl radical, iron, waste waters, UV irradiation yes 50773775 91552101 6270 91552100 50773775 2018-12-05T10:55:57.053Z 45 no 46 mentor Sonja, 1980- Milić Komić 2018 63 mentor Katarina. 1957- Anđelković 2018 63 mentor Jelena. Bogdanović Pristov 2018 63 član komisije Dušan, 1958- Sladić 2018 95 listova 3215810 http://phaidrabg.bg.ac.rs/o:18902 no yes 1 2018-12-05T10:55:57.320Z 70 11 1066775 1066791 11 1066841 1066866 slobodne aminokiseline, triptofan, indol, redoks osobine, antioksidativnost, Fentonov sistem, hidroksil-radikal, gvožđe, otpadne vode, UV zračenje free amino acids, tryptophan, indole, redox properties, antioxidant, Fenton system, hydroxyl radical, iron, waste waters, UV irradiation 1738 11A19 2018