Electrical impedance evaluation of gamma rays response for preservation of vegetables and fruits.

The electrical impedance (EI) characterization of vegetables and fruits extracts from fresh plants is essential for development, evaluation, understanding and predicting their interaction with different application. The results suggest that all extracted plants have equivalent electrical circuit consists of capacitor and resistor in parallel. The methanol and vegetables-fruits extracts found have approximately semiconductor behavior. The parallel capacitance, Cp decreased ∼53%, while dissipation factor, DF increased ∼64% via gamma medium dose range up to 10 kGy. As well as, the relative dielectric, εr decreased ∼53% for red onion peel. EI of plants at medium dose range of gamma irradiation has roughly tangible changes. The EI technique for food sterilization represents a novel way added to other methods.