Barley grain enrichement with essential elements by agronomic biofortification

Abstract

Barley grain is rich in mineral nutrients, but their bioavailability to humans depends on antinutrients that restrain bioavailability and promoters that promote bioavailability. The aim of this study was to examine composition of barley grain, including phytate and phenolics as antinutrients, carotenoids and glutathione as promoters and mineral elements, such as Ca, Mg, Fe, Si, Zn and Mn influenced by various non-standard foliar fertilizers (Zircon, Chitosan, Siliplant, Propikonazole), including some hormonal growth-stimulators (Epin Extra, Benzyladenine), as potential biofortification measure. Chitosan increased glutathione concentration in grain. Unfavorable meteorological conditions were partly mitigated by application of Benzyladenine and Siliplant, reflected through increased potential bioavailability of P, Mg, Ca and Fe.

Zrno ječma je bogato mineralima, ali njihova pristupačnost za ljudski organi- zam zavisi od antinutritiva koji inhibiraju njihovu apsorpciju i promotera koji povećavaju njihovu pristupačnost. Cilj istraživanja je da se ispita sastav zrna ječma, uključujući fitat i fenole kao antinutritive, karotenoide i glutation kao promotere, kao i mineralne elemente Ca, Mg, Fe, Si, Zn i Mn, pod uticajem nestandardih folijarnih đubriva (Cirkon, Hitosan, Siliplant, Propikonazol), kao i hormona (Epin Ekstra, Benziladenin), kao potencijalne mere za biofortifikaciju ječma. Hitosan je povećao koncentraciju glutationa. Nepovoljni meteorološki uslovi su delimično prevaziđeni primenom Benziladenina i Siliplanta, koji su uticali na povećanje potencijalne pristupačnosti P, Mg, Ca i Fe. PR Projekat Ministarstva nauke Republike Srbije, br. TR 31037.