Naslov
Phenolic Acids Profiles and Antioxidant Activity of Major Cereal Crops

Autori
Horvat, Daniela ; Šimić, Gordana ; Drezner, Georg ; Lalić, Alojzije ; Ledenčan, Tatjana ; Tucak, Marijana ; Plavšić, Hrvoje ; Andrić, Luka ; Zdunić, Zvonimir

Izvornik
Antioxidants (2076-3921) 9 (2020), 6; 527, 12

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
cereals ; wheat ; barley ; corn ; phenolic acids ; HPLC ; antioxidant activity

Sažetak
Phenolic acids (PAs) are dominant group of phenolic compounds in cereals, existing mostly in the form bound to compounds of cell wall. In this study, a total of 25 cereal grain samples, including wheat, winter and spring barley, corn and popcorn, were evaluated for bound PAs and antioxidant activity in two-year field trial. The PAs contents determined by HPLC were significantly affected by cereal types. The mean total PAs content was highest in popcorn and corn (3298 and 2213 μg/gdm, respectively), followed by winter and spring barley (991 and 908 μg/gdm, respectively) and wheat (604 μg/gdm). Ferulic acid was the most abundant, accounting from 62% to 83% of total PAs (in popcorn and winter and spring barley, respectively). Across cereals, p-coumaric (35-259 ug/gdm) and p-hidroxybenzoic (45-68 ug/gdm) were also dominant, while in corn and popcorn o- coumaric (71 and 89 ug/gdm, respectively) also occurred in higher content. The mean total phenol content ranged from 853 ug GAE/gdm (wheat) to 1403 ug GAE/gdm (winter barley) with DPPH scavenging activity from 14% to 67%, respectively. A significant influence of cropping years on the ferulic acid and total PAs content was found, while the variability of other PAs was dependent on the cereal type. The results indicate a high health benefit potential of selected cereals.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija), Prehrambena tehnologija, Nutricionizam

POVEZANOST RADA