Abstract

This study was aimed to develop a device which can process Zobo juice at an economic rate utilizing the principle of leaf extraction method. Four tanks were constructed using aluminium sheet and stainless steel. The boiling, heat exchanger, and homogenizing tanks were made of aluminium while the cold water tank was made of stainless steel. The volumes of the tanks are 9.0 m 3 , 9.5 m 3 , 9.0 m 3 and 5.0 m 3 for boiling tank, homogenizing tank, heat exchanger and cold water tank respectively. The Zobo calyces are boiled in the boiling tank and the product is exited into the heat exchanger where water from the cold water tank is allowed into the heat exchanger to reduce the temperature of the zobo juice after which it finally enters the homogenizing tank where other ingredients (sugar and ginger) are added. The homogenizing tank stirs its content to obtain the final product. Its performance showed that in an average of 32 minutes using 9 litres capacity of boiling tank with mean volume of 9.0 cm 3 , the homogenizing tank with mean volume of 9.5cm 3

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