Design, Construction and Performance Evaluation of A Bush Mango Juice And Seed Extractor

Abstract

This work aimed at the design and construction of a bush mango juice and seed extractor. The extractor consists of hopper, beating chamber, extractor chamber which consists of a bottom perforated cylinder and a decreasing pitch screw conveyor (auger), and a lower semi-cylindrical juice collector. The upper shaft to which the beaters are welded has a speed of 250rpm, while the auger has a speed of 98rpm. Bush mango were fed into the beating chamber through the hopper and the beaters beat and conveyed the fruits into the extraction chamber where the juice is then extracted with the help of the decreasing pitch screw conveyor. The extracted juice then flows through the perforations into the lower semi-cylindrical juice collector. The extractor has extraction efficiency of 66%, juice recovery rate of 69%, and capable of extracting bush mango juice without crushing the seeds. The machine has low maintenance cost and replacement of parts can be done with ease because the machine was made from locally available materials. Machine of this nature can be employed to increase the production of bush mango juice locally.