Whole grain phenolics and antioxidant activity of Triticum cultivars and wild accessions

Soluble free phenolics (SP), PVPP-bound tannins (PVPP-P), flavonoids (TF) and proanthocyanidins (PA) content, as well as the DPPH-radical scavenging capability of the whole grain of 17 different Triticum spp. accessions were analyzed. The content of SP ranged from 976 to 2927 ?g CE/g, while PVPP-P r...

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Bibliographic Details
Published in:Journal of the Serbian Chemical Society 2016, Vol.81 (5), p.499-508
Main Authors: Malencic, Djordje, Kiprovski, Biljana, Bursic, Vojislava, Vukovic, Gorica, Hristov, Nikola, Kondic-Spika, Ankica
Format: Article
Language:English
Subjects:
Antioxidants
Cinnamic acid
Correlation analysis
Flavonoids
Grain
Phenolic acids
polyphenolics
Proanthocyanidins
Scavenging
Tannins
Wheat
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Summary:Soluble free phenolics (SP), PVPP-bound tannins (PVPP-P), flavonoids (TF) and proanthocyanidins (PA) content, as well as the DPPH-radical scavenging capability of the whole grain of 17 different Triticum spp. accessions were analyzed. The content of SP ranged from 976 to 2927 ?g CE/g, while PVPP-P ranged from 335 to 1412 ?g CE/g and TF from 0.16 to 1.12 ?g RE/g of dry whole grain. The presence of PA in the whole grains has not been established. The values for DPPH-radical scavenging activity were rather moderate, under 40 % of neutralized radicals. A positive correlation between DPPH-activity and analyzed phenolics was recorded in twelve of seventeen genotypes (r=0.73-0.99). Trans-cinnamic acid was the major compound among phenolic acids and quercetin among flavonoids found in wheat varieties. The data obtained should enable the selection of the accessions rich in biologically active compounds that could further be processed into functional food with possible health benefits associated with higher antioxidant properties.
ISSN:0352-5139
1820-7421
DOI:10.2298/JSC151021013M