Bioactive Compounds in Different Buckwheat Species
Grażyna Podolska | Elżbieta Gujska | Joanna Klepacka | Edyta Aleksandrowicz
The accumulation of valuable nutrients in cereal grains depends on a number of factors, including species, cultivars, and environment conditions. The aim of this study was to compare protein, some polyphenols and rutin content, as well as mineral composition in <i>Fagopyrum tataricum</i> and <i>Fagopyrum esculentum</i> genotypes growing in Polish conditions. A field experiment was conducted on pseudopodsolic soil in 2017–2018 at the Experimental Station in Osiny (51°35′, 21°55′), following randomized complete block method with three replications. Two cultivars of <i>Fagophyrum esculentum</i> (Kora and Panda), two cultivars of <i>Fagopyrum tataricum</i> (LIT1 and 63181) and two forms of <i>Fagopyrum esculentum</i> (Red Corolla and Green Corolla) were used in this experiment. We found differences in the tested compounds (protein, phenolic acids, rutin, and mineral composition) between cultivars and genotypes. Total phenolic acid and rutin contents were higher in the <i>Fagopyrum tataricum</i> compared to <i>Fagopyrum esculentum</i>. Ferulic and coumaric acids were prominent in the Kora and Panda cultivars, however vanillic and syringic acids accumulated more in Green Corolla and Red Corolla. The common buckwheat seeds contained more Cu, Mn, and Mg and less Ca than tartary buckwheat. Moreover <i>Fagopytum esculentum</i> genotype contains more protein compared to <i>Fagopyrum tataricum</i>.
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