An Assessment of Cassava Processing Plants in Irepodun Local Government Areas, Kwara State, Nigeria

T.A. Adekanye, S.I Ogunjimi, A. O. Ajala

  Open Access OPEN ACCESS  Peer Reviewed PEER-REVIEWED

An Assessment of Cassava Processing Plants in Irepodun Local Government Areas, Kwara State, Nigeria

T.A. Adekanye1,, S.I Ogunjimi2, A. O. Ajala2

1Department of Agricultural and Biosystems Engineering, Landmark University, Omu Aran, Kwara State, Nigeria

2Department of Agricultural economics and extension, Landmark University, Omu Aran, Kwara State, Nigeria


An assessment of cassava processing plant was conducted in Irepodun local Government Area of Kwara State, Nigeria to evaluate different cassava processing machinery being used by the processors, the common machines, and costs of machines, type of prime movers and sex of machine operators. The study was carried out in five communities and five cassava processing centres were selected from each of the community to give a total of twenty–five processing centres. Many of the processing centres were owned by private individuals. 292 cassava processing machines were observed altogether during the study and most of these were obsolete equipment. Grating machine, dewatering machine and milling machines were more prominent in the Local Government. The diesel engine was the only prime mover in all visited centres. Cassava processors preferred diesel despite its high cost, this may be as a result of incessant petrol scarcity and constant absence of electricity supply from Power Holding Company of Nigeria. This assessment showed that inappropriate and unaffordable cassava processing machinery is responsible for low level of cassava processing and utilization in Nigeria which is the largest cassava producer.

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Cite this article:

  • Adekanye, T.A., S.I Ogunjimi, and A. O. Ajala. "An Assessment of Cassava Processing Plants in Irepodun Local Government Areas, Kwara State, Nigeria." World Journal of Agricultural Research 1.1 (2013): 14-17.
  • Adekanye, T. , Ogunjimi, S. , & Ajala, A. O. (2013). An Assessment of Cassava Processing Plants in Irepodun Local Government Areas, Kwara State, Nigeria. World Journal of Agricultural Research, 1(1), 14-17.
  • Adekanye, T.A., S.I Ogunjimi, and A. O. Ajala. "An Assessment of Cassava Processing Plants in Irepodun Local Government Areas, Kwara State, Nigeria." World Journal of Agricultural Research 1, no. 1 (2013): 14-17.

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1. Introduction

Cassava (Manihot esculenta Crantz) is a major food and industrial crop in tropical and subtropical Africa, Asia and Latin America [1]. Nigeria has been consistently ranked as the world’s largest producer of cassava, producing around 45 million tonnes in 2009, almost 19% of total world production [2]. Cassava grows well on Nigeria soil, resistant to drought and survives in a variety of soils. Cassava is a very versatile commodity with numerous uses and by - products. The leaves may be consumed as a vegetable, or cooked as a soup ingredient or dried and fed to livestock as a protein feed supplement. The stem is used for plant propagation and grafting. The roots are typically processed for human and industrial consumption. Cassava root is a good source of carbohydrates. The plant is used to make a local starchy food called gari, and it is also a source for bio-fuel as well as animal feed.

The major constraint of cassava processing is rapid deterioration of the roots. Cassava roots have a shelf-life of 24–48 hours after harvest [3, 4]. Once harvested, it has to be either consumed immediately or processed into more stable product forms. Fresh roots must be processed within 2 to 3 days from harvest. To reduce this level of losses, it is very necessary that they are processed as early as possible (Figure 1).

Cassava processing using traditional methods is tasking, ineffective, time- consuming and also inefficient. Such difficulties arise in the grating and draining of the starchy fluid from the cassava dough since the conventional methods available involve processes that require a lot of labour and man hours. The problem is worsened when the quantities to be produced are very large, [5]. Cassava farmers are often unable to process harvested roots and have to sell their crops at a very low price to middlemen who are willing and able to reach them [6]. Mechanization is necessary for production, harvesting and processing to reduced cost and to and to minimize waste.

Traditional tools used in Gari processing includes: Millstone, grinding stone, pestle and mortar. These methods have low productivities and low hygienic. These problems led to the designing and construction of machines that can grate the cassava of high quality in a short period of time and reduce human drudgery. Some of the machines include: roller crushing mill, hammer mill, bar mill, grater etc. The quality of product differs from one operator to another and sometimes from one batch to another [7]. New technology and different types of equipment have been designed and manufactured to improve the processing of cassava into gari and other products. These processing machines include: cassava harvesters, cassava graters, cassava pressing machines, mill, sifter and fryers [8]. This research was carried out to assess different cassava processing machineries available and used by cassava in Irepodun local Government of Kwara State, Nigeria.

The specific objectives of the study are to:

i   describe the personal socio-economic characteristics of cassava processor;

ii  identify different type of machines used by cassava processors in the study area;

iii asses on gender basis the operations undertaken in cassavas processing; and

iv identified constraints associated with usage of improved processing machines.

Figure 1. Traditional processes for production of cassava flour and gari

2. Materials and Methods

This study was conducted in Irepodun Local Government area of Kwara State, Nigeria. The local government has an area of 737 km2 and a population of 148,610 at 2006 census. This research was carried out using participant observation, on spot assessment and interview schedule. Five communities were randomly selected in the local government area. These communities include; Omu Aran, Ajase-Ipo, Oro, Ayedun, Rore and Igbonla.

Five cassava processing centres were selected in each of the communities hence a total of twenty - five cassava processing centres were considered for this study. Five cassava processors were randomly selected in each of cassava processing centres giving a total of 125. Some of the parameters addressed by the interview schedule were: types of machines used for cassava processing, most common machines, gender of cassava processors, and problems associated with cassava processing plants such as cost of machines, maintenance costs, erratic power supply and inadequate water supply Data were collated and subjected to statistical analyses using SPSS.

3. Results and Discussion

Results in Table 1 show that the mean age of cassava processors was 41.1 years with a standard deviation of 13.2. Majority (60.8%) of the respondents were adults with their ages between 30 and 60 years old. This indicates that majority of cassava processors in the study area are in their productive age which means that they still have strength and vigour to contribute immensely to the economy of their community.

Findings in Table 1 show that, both female (52.2 percent) and male (48.2 percent) were into cassava processing in the study area. This is in line with [9] findings that both men and women make significant contributions to the cassava processing industry. Majority (95%) of them were married. [10], reported that the marital status of a farmer could have significant influence on production decisions. They opined that in African traditional society, married men are considered to be more responsive since it is assumed that a person having family would want to have the best results that would translate to more output and consequently income to meet family needs.

Table 1. Distribution of cassava processors according to their socio-economic characteristics

The mean household size was 8.7 with a standard deviation of 4.9. The size of households may be due to the fact that majority of the respondents were monogamists, which could be attributed to their level of education and religious affiliation. This finding is in line with [11]; reported that the mean household size of rural areas of farmers in South-Western Nigeria was 8.0. Majority (92.8%) of the cassava processors had primary, secondary or tertiary education. This indicates that they can easily comprehend what they have learnt and can read instructions and manuals on the usage of the improved cassava processing technologies. This is in line with [12] assertion that it is often easier for an educated person to be favourably disposed to improved technologies because he can give a reasonable consideration to its adoption.

Moreover, [13] stressed that education is an important instrument for successful implementation of technologies and profitability on the part of farmers. Majority (76.6%) were literate, while 23.3 per cent had never been to school. Majority (78.4%) of respondents had less than 5 extension contacts in the past one year. The low level of extension contact might be due to the fact that extension agents were not well equipped to face the challenges ahead as a result of inadequate funding and inadequate training on the improved processing technology. This result is in line with the conclusion of [14, 15] that there was low level of extension contact among farmers in Osun state.

It was observed that most of the cassava processing centres have three common machines: lister engine, grater and presser. A total of 292 machines were observed in the study areas.

Table 2 shows that grating machine was commonly available in almost all the centres (47.9%), mechanical dewatering (34.6%), and mill machines (15.8%) were also common. However it was observed that no single cassava processing centre has a mechanical peeler and mechanical garri fryer. This might be because of the costs of these labour saving machines were beyond the local cassava processors. All observed machines were locally fabricated except the prime movers.

The cassava grating machines were available in all the processing centres. Ruggedness and availability of spare parts may be responsible for its acceptance.

Peeling, washing, drying and frying were undertaken manually. Peeling as a unit operation was largely undertaken by women and children using knife [16]. Mechanical dewatering machines were also available in all the centres. Three types of mechanical dewatering machines were observed; power screw press, parallel board press and hydraulic press. The hydraulic dewatering machine was more favoured by the cassava processors due to its high efficiency, ease of operation and least efforts to supply power.

It was observed that diesel engine was the only prime mover in all visited centres. Cassava processors preferred diesel despite its high cost. This may be as a result of incessant petrol scarcity from petrol stations and constant absence of electricity supply from Power Holding Company of Nigeria.

Table 3 shows ownership of the cassava processing centres. It was observed that none of the cassava processing centre was owned by Government, they were owned by private individuals and cooperative societies who cannot afford expensive labour saving machines required for cassava processing.

Table 2. Cassava processing machines in the study area

Table 3. Ownership of cassava processing plants (N=125)

Table 4. Distribution of the respondents according to gender differences in performing cassava processing activities

Table 4 reveals that certain cassava processing operations are predominantly for certain sex. Harvesting (60.0%), grating (73.6%), dewatering (62.4%) and milling (91.3%) operations are predominantly undertaken by men. While peeling 68.0%, washing (81.6%), frying (68.8%), drying (82.6%) and sieving (67.2%) are performed mainly by women. Women operated petrol engines while men operate diesel engines. Thus sex of machine operators depends on the prime mover.

The major bottleneck to the growth of mechanisation of cassava processing in Nigeria as mentioned by respondents include high cost of machines, high operation cost of some of the cassava processing machines, erratic supply of electricity, inadequate water supply and inadequate credit facilities. This finding is in agreement with [17] that prominent number of processors reported that cost of machines, high operation cost of some of the cassava, processing machines stood as a major bottleneck to the growth of mechanisation of cassava processing in Nigeria.

Table 5. Distribution of respondents according to the problems associated with cassava processing plants

4. Conclusion

This study revealed that individuals and cooperative societies are more committed to cassava processing than government. Most of the cassava processing centres visited had more than two machines prominent among them were grating machine, dewatering machine, milling machine and shifters. The most common cassava machine and engine were grating machine and diesel engine respectively. Most of the machine operators were men while women were engaged in manual unit operations such as peeling, washing, sifting, frying and drying.

High cost of processing machines is a major setback for cassava processors as this hindered them from fully mechanizing cassava processing. The costs of mechanical peeler and fryer were beyond the small scale cassava processors. Many of the cassava processors complained of non-assistance from the government.

5. Recommendations

Nigeria is rated as the world’s largest cassava producer yet inadequate processing machinery and equipment, high costs of machines, lack of credit facilities for small scale processors, and perishability of the cassava crop are some of the constraints that must be overcome. Reference 16 asserted that the task of the Agricultural Engineers is to mechanized agriculture in order to increase production and ensure food security. The following conclusions and recommendations are made;

1 High cost of cassava machines is a major bottleneck for small scale processors, government should render financial assistance to them so as to boost cassava processing; cassava processors can also form corporate bodies as this will enable them to buy communally those machines needed.

2 Provision of basic amenities such as constant electricity, accessible roads, water and constant availability petrol will have positive effects on small scale cassava processors,

3 Adaptive technology such as cassava processing machines developed by Nigerian engineers, research institutes and Universities should be demonstrated for cassava processors and government should help in commercializing these machines to make them readily available and affordable to cassava processors who are the end users.


[1]  Rei Reinhardt H. Howeler, Christopher G. Oates and Antonio Costa Allem, Strategic environmental assessment: an assessment of the impact of cassava production and processing on the environment and biodiversity. Food and Agricultural Organisation of the United Nations /International Fund for Agricultural Development, Rome, vol. 5: 7, 2001.
In article      
[2]  Kolawole,P.O., Agbetoye, L.A.S. and Ogunlowo, S.A., Sustaining world food security with improved cassava processing technology: The Nigeria Experience, 2010.
In article      
[3]  Stephen, K.A. and Eric, K.G. Modification of the designs of cassava grating and cassava dough pressing machines into a single automated unit. European Journal of Scientific Research 38(2):306-316, 2009.
In article      
[4]  Nyerhovwo, J.T. Cassava and the future of starch. Electronic Journal of Biotechnology 7(1), 2004.
In article      
[5]  Stephen. A. and Eric, K.G., Modification of the design of cassava grating and cassava Dough pressing machine into a single Automated Unit. European Journal of Scientific Research. 38 (2): 306-314, 2009.
In article      
[6]  Nweke F.I., Processing potential for cassava production growth in sub-Saharan Africa. COSCA Working Paper No 11, Collaborative Study of Cassava in Africa, IITA Nigeria, 1994.
In article      
[7]  Igbeka, J. C., Jory, N. and Griffon, D., Selective mechanization for cassava processing. Journal of Agriculture Mechanization in Asia and Latin America 23(1):45-50, 1992.
In article      
[8]  Odighoh, E. U., Cassava production, processing and utilization. In Chan Jr., H.T. (Ed.), Handbook of Tropical Foods. Marcel Dekker, Inc., 145-200, 1983.
In article      
[9]  Olayeni O.O., Gender analysis of training needs on the prevention of hazards associated with processing in Osun State, Nigeria. Unpublished M.Sc. thesis Obafemi Awolowo University Ile-Ife, 75. 2012.
In article      
[10]  Omolehin, R.A.;Ogunfiditimi, T.O. Adeniji, O.B., Factors influencing adoption of chemical pest control in cowpea production among rural farmers in makarfi local government area of Kaduna state, Nigeria. 54-56, 2007.
In article      
[11]  Ogunjimi, S. I., K.S. Obaniyi and Adedeji I. A, Peri-urban and urban farmers’ perceptions of mini-livestock farming in southwestern Nigeria. The international journal’s Research Journal of Social Science and Management. 02(02):81-83 June-2012,
In article      
[12]  Jibowo A.A., Essentials of Rural sociology. Gbemi Sodipo press, Abeokuta, Nigeria. ‘Second Impression, pp 229-236, 2000.
In article      
[13]  Rogers E. M, Shoemaker P.C., Diffusion of innovations. The Free Press of Glancoe, N.Y., pp 367.
In article      
[14]  Adesoji S. A., Assessment of Fish farming management practices in Osun state Nigeria PhD Thesis Obafemi Awolowo University. 4-10, 2009.
In article      
[15]  Ajala, A.O., Ogunjimi, S.I and Farinde, A.J., Assessing the effectiveness of improved cassava production technologies among cassava farmers in Osun state, Nigeria Wudpecker Journal of Agricultural Research 1(7):281-288, August 2012.
In article      
[16]  Kehinde, A. T. Adefemi, J.O. Tayo, O.S. Michael and O.A. Obafemi Technology Choice and Technical capacity in Garri Production. Food Reviews international, 7 (1): 89, 2007.
In article      
[17]  Davies, R.M., M.O. Olatunji and W. Burubai, Mechanization of Cassava Processing in Iwo Local Government Area of Osun State, Nigeria. World Journal of Agricultural Sciences 4 (3): 341-345, 2008.
In article      
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