20.500.12556/DKUM-87537 Antioxidant activity of different hop (Humulus lupulus L.) genotypes The antioxidant activity (AA) of hop extracts obtained from different hop genotypes (n = 14) was studied. For comparison, the purified β-acids-rich fraction and α-acids-with-β-acids-rich fraction were also used to test the antioxidative potential. The AA of purified hydroacetonic hop extracts was investigated using the Ferric Reducing Ability of Plasma (FRAP), Oxygen Radical Absorption Capacity (ORAC) and Intracellular Antioxidant (IA) methods. The FRAP values in different hop genotypes ranged between 63.5 and 101.6 μmol Trolox equivalent (TE)/g dry weight (DW), the ORAC values ranged between 1069 and 1910 μmol TE/g DW and IA potential values ranged between 52.7 and 118.0 mmol TE/g DW. Significant differences in AA between hop genotypes were observed with all three methods. AAs were determined using three different methods, which did not highly correlate with each other. We also did not find significant correlations between AA and different chemical components, which applies both to AA determined using individual methods as well as the total AA. Based on this fact, we assume that the synergistic or antagonistic effects between hop compounds have a more pronounced effect on AA than the presence and quantity of individual hop compounds. hop antioxidant activity FRAP ORAC intracellular antioxidative potential genotypes hmelj antioksidativna aktivnost znotrajcelični antioksidativni potencial genotipi true false true MDPI Angleški jezik Slovenski jezik https://www.mdpi.com/journal/plants Članek v reviji 2024-03-20 11:47:51 2024-03-20 12:32:24 2024-05-09 14:04:38 0000-00-00 00:00:00 2023 0 0 Str. 1-16 Št. 19, št. članka 3436 Letn. 12 2023 0000-00-00 Zaloznikova Objavljeno NiDoloceno 2023-09-04 2023-09-26 2023-01-01 633.791:575.22:66.094.3.097.8 166719491 10.3390/plants12193436 2223-7747 Kolenc-2023-Antioxidant_Activity_of_Different.pdf Kolenc-2023-Antioxidant_Activity_of_Different.pdf 1 540024CE7642654AEA84C9032E3CF738 4b899e97e8852c400a9611cb68363086b41ff7de6eecfbe253384b611f144bb9 64c41e96-e6ad-11ee-9087-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=177119 https://www.mdpi.com/2223-7747/12/19/3436 0 4d38364b-e6a7-11ee-9087-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=177118 Fakulteta za kemijo in kemijsko tehnologijo Fakulteta za kmetijstvo in biosistemske vede 0 0 0