Saletovic, M; Hodzic, Z; Banjanin, B; Kesic, A
Research of availability of microelements in medicinal plants and water extract (tea) is of great importance in order to ensure are the concentrations of the same ones equivalent to the average of regulated values so they will not have a negative influence on people's health. In the work is present the research of identification and quantitative determination of microelements (Cu, Zn, Mn) in dry matter and extract of medicinal plants. AAS (Atomic absorption spectrometric) and ICP-OES method was used in identifying the microelements. The average value of the microelements in dry matter was in decrease: Mn>Zn>Cu.
The content of the microelements in dry matter is next: Zinc from 14,2 mg/kg to 103,4 mg/kg, Cooper from 2,8 mg/kg to 15,4 mg/kg, Manganese from 14,3 mg/kg to500,0 mg/kg. Availability of microelements in the extract of medicinal plants varied, depending on the type of the plant and locality, so the average value of the concentration was in decrease: Zn>Mn>Cu. The content of the microelements in water extract was: for Zinc from 1,87 mg/L to 6,00 mg/L, Copper from 0,39 mg/L to 0,89 mg/L, Manganese from 0,37 mg/L to 24,43 mg/L. Linear correlation for manganese (R(2)=0,825) is found during the research of concentration dependence of the microelements in the extract and concentration in dry matter. Using at least one liter of tea is possible to feed your body with 11,6 % to 34,73% of Zinc, 21,33% to 58,66% of Cooper and 22,50% to 98% of Manganese. The results show that while consuming the extract of medicinal plants (tea) you get the essential dose of Zinc, Cooper and Manganese into your body.
