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A Simple Electrical Technique to Demonstrate the Effect of Salting and Harmful Chemicals on Fresh Vegetables

Reema Gupta, Chirag Singh, Prerna Dhankar and Adarsh Singh


DOI: 10.5281/zenodo.10908478


The quality of vegetables for human consumption is greatly influenced by two primary factors, presence of harmful chemicals like insecticides/pesticides/chemical fertilizers and salting. Organic produce promotes sustainable use of natural resources and is a healthier option. Excessive salt stress is detrimental as it leads to the degradation of essential nutrients. A low cost experimental setup is designed that measures the electrical properties, namely resonance and bio impedance, of the organic and conventionally grown vegetables. The vegetables are excited by a low voltage ac source and their behavior is studied under varying frequency in the range 1khz to 600kHz. The results reveal that salinity and conventional methods of agriculture significantly alter the electrical properties of the raw vegetables. Monitoring the shift in the resonance frequency has proven to be an effective method for assessing the quality of the vegetables at the source level.


Department of Physics, Hindu College, University of Delhi, India



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