Zala Kolenc (Avtor), Tamara Hribernik (Avtor), Tomaž Langerholc (Avtor), Maša Primec (Avtor), Maja Prevolnik (Avtor), Urban Bren (Avtor)

Povzetek

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.

Ključne besede

hop;antioxidant activity;FRAP;ORAC;intracellular antioxidative potential;genotypes;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UM FKKT - Fakulteta za kemijo in kemijsko tehnologijo
Založnik: MDPI
UDK: 633.791:575.22:66.094.3.097.8
COBISS: 166719491 Povezava se bo odprla v novem oknu
ISSN: 2223-7747
Št. ogledov: 149
Št. prenosov: 5
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Slovenski jezik
Sekundarne ključne besede: hmelj;antioksidativna aktivnost;znotrajcelični antioksidativni potencial;genotipi;
Vrsta dela (COBISS): Članek v reviji
Strani: str. 1-16
Letnik: ǂVol. ǂ12
Zvezek: ǂIss. ǂ19, [article no.] 3436
Čas izdaje: 2023
DOI: 10.3390/plants12193436
ID: 23187509