Antioxidant activity of small grain cereals caused by phenolics and lipid soluble antioxidants
Samo za registrovane korisnike
2011
Autori
Žilić, SlađanaDodig, Dejan
Hadži-Tašković-Šukalović, Vesna
Maksimović, Vuk
Maksimović, Milan
Basić, Zorica
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
In this study, the content of soluble, free forms of phenolic compounds (total phenolics, flavonoids, PVPP (polyvinylpolypyrrolidone) bound phenolics, proanthocyanidins and phenolic acids), as well as the content of carotenoids and tocopherols, were determined in whole grains of bread and durum wheat, rye, hull-less barley and hull-less oat, each represented with four genotypes. Antioxidant activity was evaluated as radical scavenging activity with DPPH (2,2-diphenyl-1-picrylhydrazyl) reagent, as well as by hydrogen transfer reaction (reduction power) based on the reduction of Fe(3+). Generally, a considerable variation in antioxidant activities and phytochemical contents was observed between the cereals. Remarkably higher DPPH radical scavenging ability and reducing power were detected in hull-less barley, followed by rye and hull-less oat and durum and bread wheat, indicating that small grain species have different major antioxidants with different properties. Hull-less barley had th...e highest content of total free phenols, flavonoids, PVPP bound phenolics and contained flavan-3-ols, not found in other species. Hull-less oat had the highest content of tocopherols, very high content of yellow pigments and PVPP bound phenolics. Ferulic acid was the major free phenolic acid in small grain cereals tested. The relationship between the content of soluble phenols, as well as reducing power and DPPH scavenging activity are also considered.
Ključne reči:
Cereals / Phenolics / Lipid soluble antioxidants / antioxidant activityIzvor:
Journal of Cereal Science, 2011, 54, 3, 417-424Izdavač:
- Academic Press Ltd- Elsevier Science Ltd, London
Finansiranje / projekti:
- Korišćenje biljnih izvora proteina, dijetalnih vlakana i antioksidanasa u proizvodnji hrane (RS-MESTD-Technological Development (TD or TR)-31069)
- Interakcije membrana sa unutarćelijskim i apoplastičnim prostorom: izučavanja bioenergetike i singalizacije koristeći biofizičke i biohemijske metode (RS-MESTD-Basic Research (BR or ON)-173040)
DOI: 10.1016/j.jcs.2011.08.006
ISSN: 0733-5210