Title : Mineral content and protein quality in ancient wheat grain (Triticum sphaerococcum and T. persicum ) from organic farming
Abstract:
The need for a balanced supply of food with a high nutritional value is the biggest stimulus that leads to increased interest in the primary forms of wheat. The cultivation of primary wheat forms (emmer wheat, einkorn wheat, spelt wheat), gives a chance to obtain consumption grain with a higher content of biologically active components than in common wheat. However, the quality characteristics of other ancient wheat species are not recognized. The aim of this study was to analyze the content and quality of protein and minerals in the grain of little-known ancient wheat species – Indian dwarf wheat (Triticum sphaerococcum (Perc.) and Persian wheat (Triticum persicum Vav. (=T. carthlicum Nevski). The study was carried out under the project entitled ‘Innovation in cultivation, processing and marketing of primary forms of wheat – Indian dwarf wheat and Persian wheat with increased nutritional value’ implemented by the ‘Ancient Grain’ operational group. This project is co-financed from EU funds, in the main funding source Rural development 2014-2020 for Operational Groups. Primary wheat grain collected for qualitative assessment came from strict field experiments established in 2019, at three organic farms located in different regions of Poland. Studies have shown that Persian wheat and Indian dwarf wheat grain was characterized by a higher content of minerals such as P, Cu, Zn and Fe than in common wheat. The studied ancient wheat species were also distinguished by an increased (by 9-17%) content of total protein in grain and flour. Moreover, the protein had a higher biological value. An increased concentration of essential amino acids, such as isoleucine, leucine, phenylalanine and arginine, has been found. Based on the results obtained, it can be concluded that ancient wheat species such as Indian Dwarf wheat and Persian wheat obtained from organic farming can be a valuable raw material for the production of food with increased nutritional value.