Total phenols (TPs), total avenanthramides (AVNs; 2c+2p+2f), total antioxidant capacity (ORAC) and β-glucan were compared in two husked oat cultivars (cv.) grown in two different soils. Oat samples were labeled as: C1, cv. Donata in loamy soil; C2, cv. Donata in a medium texture soil; C3, cv. Flavia in loamy soil; C4, cv. Flavia in a medium texture soil. In the dehulled grains: TPs values were influenced by the genotype only, as both Donata samples showed higher values than the two Flavia samples; total antioxidant capacity did not show any difference due to soil or genetic; total AVNs showed a significantly higher value only in C1 sample, with respect to C2 and C3, thus emphasizing differences due to soil type and cultivar, respectively; β-glucan did not show significant difference due to cultivar or soil. The milling process significantly decreased TPs and ORAC values in all samples, but the reduction was higher in Donata than Flavia. Total AVNs were reduced by the milling process only in the Donata samples, whereas β-glucan did not show any reduction. Overall, the soil type had a little impact on nutrients level of the analyzed samples, whereas the genotype had a remarkable role, primarily for antioxidants retention during the milling process.
Influence of genotype and soil on nutrients concentration of two Italian oat cultivars
ANTONINI, ELENA;DIAMANTINI, GIUSEPPE;NINFALI, PAOLINO
In corso di stampa
Abstract
Total phenols (TPs), total avenanthramides (AVNs; 2c+2p+2f), total antioxidant capacity (ORAC) and β-glucan were compared in two husked oat cultivars (cv.) grown in two different soils. Oat samples were labeled as: C1, cv. Donata in loamy soil; C2, cv. Donata in a medium texture soil; C3, cv. Flavia in loamy soil; C4, cv. Flavia in a medium texture soil. In the dehulled grains: TPs values were influenced by the genotype only, as both Donata samples showed higher values than the two Flavia samples; total antioxidant capacity did not show any difference due to soil or genetic; total AVNs showed a significantly higher value only in C1 sample, with respect to C2 and C3, thus emphasizing differences due to soil type and cultivar, respectively; β-glucan did not show significant difference due to cultivar or soil. The milling process significantly decreased TPs and ORAC values in all samples, but the reduction was higher in Donata than Flavia. Total AVNs were reduced by the milling process only in the Donata samples, whereas β-glucan did not show any reduction. Overall, the soil type had a little impact on nutrients level of the analyzed samples, whereas the genotype had a remarkable role, primarily for antioxidants retention during the milling process.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
