Bioraspoloživost tokola kao uvjet za njihovo iskorištenje iz zrna kukuruza (CROSBI ID 706621)
Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija
Podaci o odgovornosti
Zurak, Dora ; Duvnjak, Marija ; Kiš, Goran ; Grbeša, Darko ; Kljak, Kristina
hrvatski
Bioraspoloživost tokola kao uvjet za njihovo iskorištenje iz zrna kukuruza
Vitamin E is a term that encompasses the same biological activity of the structurally similar compounds tocopherols and tocotrienols, and maize grain, as the main component of animal diet, is their important source. Bioaccessibility represents the fraction of tocols released from the grain matrix and available for absorption by the animal. The aim of this study was to determine the content of individual and total tocols and their bioaccessibility from the grain of 105 commercial maize hybrids in a model that mimics digestion in the stomach and small intestine of monogastric animals. The average tocol content in the tested hybrids was 4.1, 25.0 and 0.7 μg/g DM for α-, γ- and δ-tocopherol, respectively, and 0.9 and 2.2 μg/g DM for α- and γ-tocotrienol, respectively. The average bioaccessibility values decreased in the order: δ-tocopherol (54%), γ-tocotrienol (53%), γ- tocopherol (46%), α-tocopherol (40%) and α- tocotrienol (36%) and bioaccessibility of total grain tocols ranged from 27 to 87%. The content of released tocols in the tested hybrids increased with the increase of their content in the grain (P < 0.001), however, bioaccessibility decreased (P < 0.001), indicating that the efficiency of tocol release from the grain matrix and their micellization decreased the higher the grain tocol content was. Despite the recorded variable values of bioaccessibility, the obtained results indicate that only about half of the tocols present in the grain is available for absorption by the animal.
vitamin E ; hibridi kukuruza ; probavljivost ; bioraspoloživost
nije evidentirano
engleski
Bioaccessibility of tocols as a prerequisite for their utilization from maize grain
nije evidentirano
vitamin E ; maize hybrids ; digestibility ; bioaccessibility
nije evidentirano
Podaci o prilogu
271-272.
2021.
objavljeno
Podaci o matičnoj publikaciji
Zbornik sažetaka 56. hrvatskog 16. međunarodnog simpozija agronoma
Rozman, V. ; Antunović, Z.
Osijek: Fakultet agrobiotehničkih znanosti Sveučilišta Josipa Jurja Strossmayera u Osijeku
2459-5543
Podaci o skupu
56. hrvatski i 16. međunarodni simpozij agronoma
predavanje
05.09.2021-10.09.2021
Vodice, Hrvatska