Ultrasonic Velocity Studies in Recycled Edible Oils at 1MHz Frequency

Abstract

Because of the cost factor of the edible oils, it became a common practice in household and commercial establishments to reuse edible oil several times i.e. recycling the same oil for cooking purpose which is harmful to human health conditions. Hence an attempt is made to find out whether edible oil is in its pure form or whether recycled by using ultrasonic technique. Ultrasonic velocity was measured in five edible oils in their pure and recycled forms at 1MHz frequency using Ultrasonic Multi frequency Interferometer at room temperature. The present study gives information about the ultrasonic velocity changes when the oil was recycled and data presented will be highly useful to identify whether the given oil is unused, used or how many times it was used.