Sokoine University of Agriculture

Development of a low cost machine for improved sorghum dehulling efficiency

Show simple item record Lazaro, E.L. Benjamin, Y. Mpanduji, S.M. 2018-01-03T13:23:54Z 2018-01-03T13:23:54Z 2013
dc.identifier.issn 0856 668X
dc.description Tanzania Journal of Agricultural Sciences 2013, Vol. 1292) : 47-54 en_US
dc.description.abstract A Pedal operated sorghum dehuller for dehulling tempered grain was developed and tested for its performance using two sorghum varieties (Dionje and Jumbo). The use of short tempering duration (10 – 15 minutes) followed by a short resting period (5 – 10 Minutes) to ensured that all the tempering moisture was absorbed into the grain before the grain was introduced into the dehuller thus eliminating the clogging problem usually associated with conventional abrasive dehullers. This facilitated the removal of the seed coat from the endosperm. The obtained results showed that the developed dehuller was able to achieve high dehulling efficiency (90.1% for Jumbo and 83.4 for Dionje) and high recovery levels compared to conventional abrasive dehullers (45.6 for Jumbo and 40.3% for Dionje). The quality of the dehulled grain was also much higher as indicated by the low ash content, low crude fibre content and superior colour of the flour obtained from the grain dehulled in the developed dehuller compared to flour from grain dehulled using conventional abrasive dehullers. These results demonstrate that it is possible to achieve high quality dehulled sorghum product and high dehulling efficiency by incorporating simple and cheap traditional pretreatments in the mechanical dehulling process. Accordingly, the developed pedal operated dehuller could be very appropriate for small scale sorghum farmers and consumers in the rural areas where spare parts, electrical power and competent technicians to run and maintain the conventional abrasive dehullers are limited. en_US
dc.language.iso en en_US
dc.subject Sorghum en_US
dc.subject Grain tempering en_US
dc.subject Dehuller en_US
dc.title Development of a low cost machine for improved sorghum dehulling efficiency en_US
dc.type Article en_US

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