The aim of this research is to determine the significance of medicinal, edible and vitaminous plant species in meadow and forest ecosystems in the area of 232 km2, Municipality of Visoko, Bosnia and Herzegovina in September, October and November 2016. The phases of field and laboratory studies were applied as well as the numerical classification methods and ordination of the ecosystem. Studies on the natural potentials of plant species with beneficial properties have shown that families of Asteraceae and Rosaceae occupy the most important places; the most prominent life-form are hemicryptophytes; the most common floristic element is Submediterranean; out of the total number of 261 plant species determined, 148 species have healing properties, 125 are edible and 80 plant species are vitaminous. We conclude that the natural resources of the researched area are not sufficiently used and known. It is necessary to undertake some activities to raise awareness and knowledge about natural potentials.

The biosensors are based on the electrons movement, i.e. electronic current determination as a reaction of enzyme-catalyzed redox reaction. Generally a normal contact voltage passes through the electrodes to analyze. In the enzymatic reaction which produces the substrate or product can transfer the electrons with the surface of electrodes to be reduced. As a result an alternate current flow can be measured. The substrate concentration is directly proportional to the magnitude of the current. The reduction of oxygen is acquired through the oxygen electrodes and it is a simple way to from an amperometric biosensor (Figure 2). The example is the determination of glucose by glucose. The above description is about the first generation of amperometric biosensor and it has a direct transfer of electrons which are released from the electrodes are having some difficulties. The second generation amperometric biosensors are developed in a mediator takes the electrons and transfer to the electrodes.