Publication Date : 01/08/2016

Author(s) :

Lawan, I., Ali, M.A, Abubakar, M. S..

Volume/Issue :
Volume 11
Issue 2
(08 - 2016)

Abstract :

An integrated groundnut oil extraction machine developed at the Department of Agricultural Engineering, Bayero University Kano was evaluated and the effects of some experimental factors were examined. Throughput capacity, extraction rate and extraction efficiency were used as performance indicators, while varieties of groundnut seeds (Manipintar and Ex-Dakar), kneading speeds on the paste (200, 111 and 73 rpm) and quantities of groundnut seeds (24, 16.8 and 12 kg) were used as experimental factors. The experiment was conducted using 2x3x3 factorial in completely randomized design (CRD) in three (3) replications. Thus, a total of fifty four (54) experiments were conducted with the samples at 2.52 and 2.69% (db) moisture content for Manipintar and Ex-Dakar variety respectively. The oil content of the samples obtained were 50.40 and 49.20% for Manipintar and Ex-Dakar variety respectively. Results revealed that the highest throughput capacity achieved was 24.45 kg/hr with combination of Ex-Dakar Variety, kneading speed of 200 rpm and 24 kg of groundnut seeds. The highest extraction rate achieved was 7.90 Lit/hr with combination of Manipintar Variety, kneading speed of 200 rpm and 24 kg of groundnut seeds. Also, the highest extraction efficiency of 78.59% was achieved with combination of Manipintar Variety, kneading speed of 200 rpm and 12 kg of groundnut seeds. Statistical analysis of the results has established that the use of different quantities and varieties of groundnut seeds on the machine is highly significant on all the performance indicators used. While use of different kneading speeds was found to be highly significant on the extraction rate and extraction efficiency. C

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