The aim of this study was to determine weight loss on drying, extractable matter, total ash and acid-insoluble ash. Thirteen biogenic elements of ash masses were found, 4 of them were macroelements (K, Na, Ca, Mg), 5 of them were microelements (Fe, Cu, Cr, Co, Zn), and 3 of them were ulrtamicroelements (Mn, Cd, Pb, Ni). The six elements (Fe, Cu, Zn, Mn, Cr, Co) were essential and the two (Ni, Cd) were conditionally essential. The highest result of the raw material weight loss during drying process was in samples from Vayk – 11.34%, the lowest one was in samples from Tsakhkahovit – 7.84%. The highest content of total ash was in samples from Tsakhkahovit – 10.59%, and the lowest one was in those from Mantash – 9,31%. The highest amount of 10% HCl insoluble ash was in samples from Tsakhkahovit – 2.37%, and the amount of 10% HCl insoluble ash in the samples from Mantash and Vayk was equal (2.29%). The highest content of extractable matters was found in the raw material obtained from Tsaghkahovit – 12.52%, from Vayk – 11,6%, and from Mantash – 11,5%. The highest result of the raw material weight loss during drying process was observed in analytical sample obtained from Vayk. The highest content of total ash, 10% HCl insoluble ash, and extractable matters was observed in samples from Tsakhkahovit. All samples cultivated from 3 regions are ecologically clean.