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» INTEGRATED CASSAVA PROCESSING PILOT PLANT
Description and Characteristics
The Integrated Cassava Processing Pilot Plant is designed to process 10-25metric tones of fresh cassava tubers into traditional fermented derivatives including gari, kokonte, agbelima vis- -vis relatively new product of unfermented high quality cassava flour. Another unique feature of the plant is the incorporation of an animal feed processing unit that converts the cassava peels into animal feeds supplements to promote rearing of goats, sheep, cows etc. Three main machine incorporated into traditional process techniques to ensure production of unfermented high quality cassava flour are dryer for drying the sieved fine dough into flakes, hammer mill for milling and sieving the dried flour flakes and sifter to capture and finally sieve and grade the finely milled unfermented high quality cassava flour.

How the Technology works
The technology involves peeling of cassava manually and carefully to ensure total removal of the peels without peeling off a greater portion of the flesh in which the starch tissues are contained. The peeled cassava is washed thoroughly with clean water in three (3)-segment washing trough. Grating is done with a diesel-engine driven horizontal shaft Grater and/or a motorized vertical shaft Grater. The cassava mash can be fermented and used for process gari. The cassava mash captured in jute sacks are pressed with the help of a single manual screw and two double screw manual presses to dewater the cassava mash. The pressed dough is fed into the horizontal shaft drum Grater to disintegrate dough into fine granules and then sieved with a sieve which consists of a rotating drum with mesh. The roughages retained by the screen are considered by-product and used mostly as animal feed. The fine dough is dried with an electric dryer and after drying, the cooled flakes is fed into the mechanize hammer mill consisting of stainless steel hammer. The milled flakes drown out of the hammer mill into a stainless steel hammer mill-blower-sifter-cyclone falling by gravity into a hopper of a sifter guided with a slide to avoid overloading. Medium and coarse flour particles, which are not sieved are fed back into the hammer mill for further milling to obtain the fine high unfermented cassava flour. To make kokonte, after peeling and washing the cassava, the cassava is feed into motorizes chipping machine to chip the cassava into smaller sizes and dried using a hybrid solar dryer to form kokonte. The peels are feed into a motorized feed mixing machine to make animal feed supplement. 

Market Potential
The technology have the potential to process cassava into several product lines: gari, kokonte, agbelima vis- -vis relatively new product of unfermented high quality cassava flour in just one processing unit. Wastage of raw material is reduced drastically to minimal. There is value for every by-product in the process eg. peels use for animal feed supplement and mashed cassava water can be used for starch production. It can be operated by very few workers. Potential market includes enterprises who are into cassava processing, gari processers and NGOs who help farmers in cassava processing and road side fabricators of simple agro-processing machineries.      
Challenges and Opportunities
The major challenge is the investment capital for the construction of the integrated cassava processing plant and the funding platform for dissemination of the technology. Cassava processing enterprises and farmer groups are interested in the technology but are challenge with the cost involve in the building of the plant especially for farmer groups.

Collaboration and funding
CSIR-IIR was contracted by the Ministry of Food and Agriculture (MOFA) to develop the technology for farmers in the Northern region as a project component of AgSSIP with support from Canadian International Development Agency (CIDA).
Dissemination strategies and Diffusion
This technology has been diffused through training of farmers in northern region of Ghana on how to operate the plant to produce various cassava products. The technology has been presented at several conferences, exhibitions, seminars in the country and a couple of nearby countries. The technology was also published in some newsletters and in proceedings of the 3rd national conference on Agricultural Engineering-Ghana.

Users of the Technology
Small enterprises into cassava processing
Gari processing groups
Starch processing companies

Pictures
The pictures below show some units of the integrated cassava processing machine. The pictures label are as follows from the first from the top left to the last at the right bottom; Washing trough, chipping machine/slicer, grater, presser, hybrid solar dryer, improved smokeless energy saving gari stoves, mechanized gari grader, motorized siever, electric dryer with control panel, high speed hammer mill, hammer mill – cyclone – sifter combination, hammer mill and feed mixer and packaged products.
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