Journal of Environmental Treatment Techniques  
2020, Volume 8, Issue 3, Pages: 1060-1068  
J. Environ. Treat. Tech.  
ISSN: 2309-1185  
Journal web link: http://www.jett.dormaj.com  
An Overview Study of Jatropha Curcas as a  
Sustainable Green Energy and its Economic  
Impacts to Local Farmers in Kano State, Nigeria  
1
2
1
2
Mukhtar Sabiu Yahuza *, Hüseyin Gökçekus , Sadiq Mahmoud Ahmad , Nura Yunusa  
1
Department of Architecture, Near East University, 99138 Nicosia (via Mersin 10, Turkey), Cyprus  
2
Department of Civil Engineering, Civil and Environmental Engineering Faculty, Near East University, 99138 Nicosia (via Mersin 10, Turkey),  
Cyprus  
Received: 28/03/2020  
Accepted: 30/06/2020  
Published: 20/09/2020  
Abstract  
The planet is dying due to so many human activities that are harmful to our environment, such as cutting down trees without growing  
new ones, carbon emissions through the use of combustion engines and burning firewood etc. As such, these anthropogenic activities  
pollute our environment and compromising human sustainability. These harmful activities were carried-out either deliberate or unknown  
to people in search of energy, survival and luxuries of life. Therefore, there is strong need to find sustainable source of energy that is  
renewable and environmentally friendly for continual existence of man on this planet. Biodiesel can be extracted from Jatropha Curcas  
L, which serve as a source of renewable energy. In this paper; the awareness, processing method, economic and medicinal benefits of  
Jatropha Curcas in Nigeria was discussed. The paper gives priority to three different studies, with addition of regression analysis. The  
research concluded that there is high rate of awareness of Jatropha Curcas plant, mainly used in live fencing, homestead fencing and  
farm boundaries mainly in Kano state, Nigeria; though, most of the farmers were not aware of its benefits such as biodiesel oil, medicinal  
uses, anti-desertification features, soap making among many others, but they are willing to produce the biodiesel from it. The research  
also recommends awareness campaign and government incentives in the cultivation, production and marketing the biodiesel in Nigeria.  
Keywords: Biodiesel; Biofuel; Fuel; Fossil; Jatropha Curcas; Kano state; Nigeria; Renewable energy  
Introduction1  
not emit any harmful greenhouse gasses when burning or during  
1
any stage in the process of using or processing it. The energy of  
Jatropha Curcas is gotten when the jelly in the dried seed was  
extracted and filtered, which is pale yellowish. With the world’s  
fossil fuel depleting rapidly one cannot predict the time left before  
it finishes, this is found using the R/P ratios; that is the ratio of  
reserves to production rates at current stage. At the production  
rates currently, crude-oil will finish in 53 years, coal in 110 years,  
and natural gas in 54 years from June 8, 2018 (6). However,  
Devanesan (7), (2007) also established the fact that crude oil  
reserves might be exhausted before 50 years at the current state of  
use by various machineries. This research shows the demand for  
other alternative sources of energy sources to use in the future,  
nevertheless Jatropha Curcas can be a solution to future energy  
needs in the world. The only disadvantage about Jatropha Curcas  
is the poison in it when accidentally swallowed, but the damage  
can be treated if the victim receives medical attention, though, no  
mortality cases were reported yet (8).  
Nigeria practices a mono-economic system on fossil fuel  
mainly, thereby abandoning agriculture and other essential sectors  
of the economy. Jatropha Curcas was introduced into Nigeria in  
the year 2007, and many policies were developed by past Nigerian  
governments about how to promote biofuel but nothing much  
beneficial has been brought out of those policies. Nigerian Federal  
Executive Council (FEC) in 2007 propose and approve the  
establishment of the Biofuel Research Institute and Biofuel  
Energy Commission (BRI & BEC), the diversification of Nigerian  
Jatropha Curcas seed is a green plant that can be cultivated,  
harvested and processed to produce energy which is renewable  
and safe for human existence, as such, it becomes sustainable and  
reliable biofuel in the world. Dehgan (1), (1984) and  
jatrophaworld (2), (2007) describes Jatropha Curcas as a drought-  
resistant plant that belongs to the family Euphobiaceae, in other  
words, Euphorbiales containing some 7500 species in 275 genera.  
Others provide waxes and oils as well as medicinal drugs. Jatropha  
Curcas can grow to heights of six meters or more thus, making the  
collection of seeds more convenient (3). Biofuel means the aspect  
of using organic matter to produce energy for our daily needs, even  
though, there are various organic biofuels we eat and use as our  
daily activities, but there are lot problems we might encounter if  
they will be used in production of fuel, for example our ancestors  
use groundnut oil for fuel in lamps, and as same time used the  
groundnut oil to cook meals, this is not sustainable being to the  
fact it will cause shortage and starvation of food around the world,  
if the food we eat is used in the production any form of energy  
production. Jatropha Curcas is not edible and it can be planted on  
degraded farms where other edible crops can hardly survive, the  
roots of Jatropha plant penetrate deep into the soil to reach  
unground water, and thus, assists in strengthening the soil quality  
and reduce erosion of the soil and fight desertification (4).  
Desertification is one of the severe threat to the soil nutrients and  
economic condition in Nigeria, especially the northern part of the  
country (5). The most amazing part of Jatropha Curcas is it does  
Corresponding author: Mukhtar Sabiu Yahuza, Department of Architecture, Near East University, 99138 Nicosia (via Mersin 10,  
Turkey), Cyprus, (Coauthor PH-+905100, +234806224933. E-mail: mukhtarsabiu@gmail.com, 29185350@std.neu.edu.tr).  
1
060  
Journal of Environmental Treatment Techniques  
2020, Volume 8, Issue 3, Pages: 1060-1068  
energy sources from conventional to renewable energy as well as  
promoting the agricultural sector through the use of gas and oil  
industry, as well as job creation and sustainable development. The  
Nigerian National Petroleum Commission (NNPC) establishes  
Renewable Energy Division (RED) by former President Olusegun  
Obasanjo, which was inaugurated in 2005. NNPC through  
Renewable Energy Division (RED) initiated Automotive Biofuel  
Program for the production of biodiesel that is mixed with  
Premium Motor Spirit (PMS) also called Automotive Gas Oil  
Table 1: Study Area  
S/N  
1
KANO  
FIGURE  
Population  
11,058,300 (2016) = 5.5% of  
Nig. Pop.  
2
Density  
470 People/km2  
3
4
Coordinates  
11°30′00”N 08°30′00”E  
(AGO) and Petrol, in not more than 10% volume proportions.  
Other benefits were the biofuel has the potential to generate  
revenue of N21,000,000,000.00, approximately $27,000,000.00  
Climate/Vegetation  
Sudan Savannah  
(
twenty-seven million USD) annually for Nigeria and local  
5
6
7
Duration of  
Rainfall  
April-October  
35 to 40ºC  
Nigerian farmers (9). Nigerian population is 140,003,542 (NPC,  
2
2
be 195,458,568 people in 2019 and 433,134,619 in 2050, reaching  
the fourth (4th) most populous country in the world. Nigeria has  
high growth rate and is expected to continue growing in the future  
because of high birth rate and high population momentum (CIA,  
006) and about 16.5% of the total population unemployed (CIA,  
017). Nigeria’s population at growth rate of 2.6% is expected to  
Maximum  
Temperature  
Total land  
coverage  
20,131 km2 (7,773 mi2)  
2
019). The GDP is 2.1% (2019) which is growing slowly (World  
(
2006 Census), (11), (World Bank, 2017) and (United nation,  
Bank, 2019). While Kano, on the other hand, is located within the  
north-western part of Nigeria and it is the most populated part of  
Nigeria, with a population of 11,058,300 people (Census, 2006).  
All these Figures show the demand for Nigeria to find varieties of  
job employments for Nigerian citizens as well as other sources of  
government income apart from crude oil exportation. Jatropha  
Curcas can as well help provide continuous job creation with the  
abundance of agricultural land in Nigeria as well as fighting desert  
encroachment in the northern part of the country, thereby making  
a better future for our next generation.  
2
019).  
WEST  
AFRICA  
NIGERA  
2
%
KANO  
0%  
3
%
AFRICA  
4%  
1
The studies related to Jatropha Curcas with regards to  
awareness, economic impact and productions methods has gotten  
some attention from different literature across the globe. As such,  
the objective of the study was to evaluate the recent related studies  
as an adaptation of brief overview study. The current research also  
examines and compare the economics of Jatropha Curcas to local  
Nigerians; Kano as a case study with that of India. Thus, it will  
bring awareness to Nigerians and the world as a whole, about the  
benefits of Jatropha Curcas as sustainable green energy, to reduce  
the use of fossil fuels. However, this paper will promote the use of  
biodiesel to the Nigerian government to adopt Jatropha Curcas as  
a medium of poverty alleviation, sustainable biodiesel production  
and diversification of the Nigerian economy from the mono  
economic system.  
WORLD  
1%  
8
WORLD  
AFRICA  
WEST AFRICA  
NIGERA  
KANO  
Figure 1: 2016 Summary of the Population Figures (Census, 2006)  
KANO  
6%  
2
Material and Methodology  
2
.1 Case Study  
Kano state was chosen to be the case study area due to its  
desertification features encroaching from the northern part of the  
state; other reasons include high population, unemployment and  
abundant land for agriculture. The people surrounding villages in  
Kano state mostly practice subsistence agriculture. Kano State is  
the highest populated state in Nigeria and economically Kano is  
called Center of Commerce, and the vegetation of Kano state is  
Sudan Savannah with traces of Guinea Savannah towards the  
southern part of the state in the border with Kaduna and Bauchi  
states (10). The northern and eastern parts of the state are typically  
Sudan savannah. Kano is located in the northwestern part of  
Nigeria, created on May 27, 1967, by former Military Head of  
State Yakubu Gowon. Kano state shares boundaries Kaduna State  
to the south-west, Bauchi State to the south-east Jigawa State to  
the north-east and Katsina State to the north-west.  
NIGERA  
94%  
Figure 2: Projected Population Figures of Kano in comparison with  
Nigerian population in 2019  
1
061  
Journal of Environmental Treatment Techniques  
2020, Volume 8, Issue 3, Pages: 1060-1068  
excess alcohol was not used, which serves as a catalyst.  
Figure 5: Dried Jatropha seed and the processed oil (Source: TKI  
Resources)  
Figure 3: Showing map of Kano state from map of Nigeria  
3
Processing Method and Economic Benefits  
The traditional methods of Jatropha oil extraction requires  
about twelve hours to produce 1L of oil, which makes highly  
labour intensive. Another process of Jatropha Curcas oil extraction  
requires heating the seed kernels to fry it, crushing them to squeeze  
the water paste out, water is then added, then boiling it, and later  
separating the oil by the process of skimming and filtering  
procedure (FAO/IFA, 2010). Many studies have been reported on  
the production of Jatropha Curcas, but only study reported on the  
use of enzyme as the catalyst (Hoong et al., 2010). Another  
research by (Somorin et al., 2017) recently conducted reviews  
shows that 25.7% of Nigerian families owns generators, and  
3
.1 Processing Method  
There are two methods of processing Jatropha Curcas to  
produce biodiesel; thus are local and industrial methods. Local  
method is the simplest way of producing it; the process is itemized  
as follows: (a) harvesting the matured seed out of the plant from  
the farm; (b) allowing the outer part of the seed to dry; (c)  
removing the dried impurities; (d) extracting the fluid out of the  
seed by grinding and squeezing (physical pressing) process; and  
(e) extra purification to filter impurities.  
7
0.7% businesses use a generator for electric supply and this  
amounts to 60% of private electricity consumption in Nigeria. This  
happens due to lack of (unstable) public electric supply in Nigeria.  
3
.2 Economic Uses of Jatropha Curcas Oil  
Jatropha Curcas oil can be used in many ways such as fuel for  
cooking, lantern (see Fig. 6 to 9 below), can also be used in  
vehicles such AGO and PMS as mentioned earlier, it can also  
serve electricity in electric generators mostly in regions where  
electricity is scarce. With the electricity problem and scarcity in  
Nigeria, there can be a great achievement if the citizens and the  
government can produce green electric energy for domestic needs  
using Jatropha Curcas fuel energy. In India, the cost of Jatropha  
seedling is ₹3 Indian Rupee (equivalent to 15.2NGN), and a  
number of seedlings per hectare vary from 1,500 to 2,500,  
amounting to ₹4500/ha (22,732 NGN) to ₹7500/ha (37,890 NGN)  
seedling per hectare (Goswami et al., 2011). Thus, happens due to  
government incentive given to Indian farmers engaged in Jatropha  
Curcas production. This shows that Nigerian farmers can generate  
lots of income if the Nigerian policy on green energy is working  
efficiently. Jatropha Curcas can be used in producing soap, by  
amazingly adding sodium hydroxide (caustic soda) to the oil. The  
amazing soap gotten from Jatropha Curcas can be used in treating  
so many skin diseases. However, Jatropha soap production can be  
highly profitable, thirteen liters of Jatropha oil can used to produce  
4.7 kg of soap within 5 hours (Brittaine et al., 2010). Though, (17)  
stated that soap made locally from Jatropha Curcas oil has less  
quality compared to standard factory soap, thus, gives it less  
commercial potential (FAO/IFA, 2010). Even though, in my  
opinion, further research can improve the quality standards of the  
Jatropha soap.  
Fig.4 Jatropha Plant (Source: Aung, 2012)  
With the fuel gotten from these steps were enough to be used  
locally. While, on the other hand, the industrial method also has  
all the above stages involved in it. Though, here, further chemicals  
were added to the extracted liquid of Jatropha seed to add more  
standards to it (through esterification and transesterification  
method). Though the processing stages involved (harvesting,  
drying, degumming, extraction and de-acidification) will add the  
cost of production and negatively affect the biodiesel production  
cost. Other studies revealed that Sulphuric acid as an acidic  
catalyst can be used in reactive extraction of Jatropha oil in the  
production biodiesel can reduce the high cost of production (12).  
In transestirification and esterification reaction 1mol of a  
triglyceride of Jatropha Curcas oil reaction with 3mol of alcohol  
to give 3mols of alcoesters (biodiesel) with 1mol of glycerol.  
However, 3:1 ratio of moles alcohol to moles Esther oil can satisfy  
the reaction to be complete; but to drive the reaction to the product  
side 6:1 molar ratio is required. At the end of the reaction the  
1
062  
Journal of Environmental Treatment Techniques  
2020, Volume 8, Issue 3, Pages: 1060-1068  
with little income can start the business of Jatropha Curcas oil  
production.  
Figure 8: Jatropha Curcas seed (section view)  
Figure 6: Jatropha Cooking Stove  
Figure 9: Medicinal Jatropha Curcas (special variety), Source: (Qinghua  
et al, 2019)  
The juice of the oil cake can be used to treat pile infection and  
to clean teeth. The remnant of this miraculous plant after  
extracting the oil can be used to produce biogas and is safe for  
domestic use (cooking, lighting, electric generation, etc.).  
However, in December 2008, Jatropha oil was mixed with jet  
engine fuel in New-Zealand and successfully reduced the cost of  
flying by 1/3 (one-third). Talking about income, Jatropha Curcas  
oil will give lots of financial benefits to the farmer and investors,  
with 1600gallon/acre annually. Lastly, the oil cake gotten from the  
plant can be used fertilizer in the farm is to the fact that it is rich  
in Nitrogen (5.73%), Potassium (1%) and (1.5%) Phosphorus,  
therefore it is a good source of manure in the farm. The defatted  
cake cannot be used without detoxification due to the presence of  
a substance called Curcin in the defatted cake, which is a toxic  
substance. Nevertheless, it can be used in bio-methanisation to  
produce biogas when detoxified (Ali et al., 2010). More than 25%  
of Nigerians acquired electric generators in their homes, >70% in  
their offices and business places; amounting to 60% of electric  
energy consumption by the businesses in Nigeria. Akinbami (19),  
Figure 7: Oil Lantern, Source: (16)  
Burning Jatropha Curcas when cooking or lighting produces  
less greenhouse gasses, thus, makes it sustainable compared to  
fossil oil which produces carbon monoxide and nitrogen oxide.  
This oil reduces toxic smoke inhalation and gives lots of  
environmental benefits, such as afforestation (i.e. planting  
Jatropha) instead deforestation by avoiding cutting down trees to  
make fuel.  
(2001) reported that the most prominent energy used in Nigeria  
during the years before 2001 were mainly firewood as shown in  
Fig.10 above, while renewable energy sources (hydroelectric,  
biofuel etc.) have less patronage. Fig.11 here shows the major  
energy used in Nigeria was fossil fuel with about 80% in 2015,  
these fossil fuel were mentioned in Fig.10 above (natural gas,  
gasoline, diesel, kerosene and coal) with a total of about 98%;  
hydroelectric and other renewable energies only has 2%, which  
clearly shows that renewable energy usage was very low in past.  
However, hydroelectric power have improved from the past years  
Another important use of Jatropha Curcas is the pesticide  
effects present in it. Molluscicides (insecticide) which is present  
in the oil kills vector snails (Schistosoma) that causes bilharzia  
chronic disease (snail fever) widespread in some Africa and South  
American regions, it is caused by direct contact with blood stream  
or when bitten by the insect. The miraculous oil gotten from  
Jatropha Curcas can also be used as a purgative in traditional  
medicine. Producing Jatropha oil does not require large scale  
machinery and the large quantity of the seed; therefore, farmers  
1
063  
Journal of Environmental Treatment Techniques  
2020, Volume 8, Issue 3, Pages: 1060-1068  
when comparing hydroelectric percentage energy use in Fig.11  
with data gotten from Fig.10 in 2001. This shows that the use of  
renewable energy source very minimal in Nigeria.  
Table 2: Past Publications on Jatropha Curcas L  
Author  
Umar et al  
Country Year  
Publisher  
Advanced Journal of  
Agricultural Research  
Taylor and Francis  
Science Direct, Biofuel  
Technology  
Nigeria  
2013  
NATURAL COAL, LPG,  
Abdulsalam  
Steven et al. Malaysi 2010  
a
Nigeria  
2016  
KEROSENE  
GAS  
7%  
FUEL OIL,  
6
%
2%  
DIESEL  
6%  
HYDROELE  
CTRIC  
Fatemeh  
Anuj et al.  
Austria  
India  
2013  
2016  
Biotechnology Journal  
Egyptian Journal of  
Forensic Sciences  
Journal of Sustainable  
Energy and Environment  
Agricultural Economics  
Research Review  
Journal of Fundamentals  
of Renewable Energy and  
Application  
2
%
Bojan et al.  
India  
India  
2012  
2011  
2017  
GASOLINE  
1%  
1
Goswami et  
al.  
Mmopelwa  
et al.  
South  
Africa  
FUEL  
WOOD  
Akinbami et Nigeria  
al.  
2001  
Renewable and  
sustainable Energy  
reviews  
66%  
Figure 10: Nigerian Energy Usage Percentage in 2001. Source: (19)  
Shuit et al.  
Tosin  
Malaysi 2009  
a
Fuel  
Nigeria  
2017  
Renewable Energy  
Other energy  
Other Renewable energy, 0%  
sources  
1%  
Hydro power  
9%  
4.1 Scenario 1  
1
In this scenario, biodiesel incentive created by the government  
of Jigawa state was discussed by Mas’ud, (2016), who reported  
that the pilot study about Jatropha Curcas was carried out in  
Kazaure Jigawa state, in comparison with the continuous  
adaptation of Jatropha Curcas plantation with other countries  
Nuclear  
power  
0
%
(specifically Choudhuri and Goswami in India). Data was  
collected by direct interview with farmers in Kazaure, Jigawa  
state. Questions related to 7 influential factors were asked to  
determine whether the proposed determinants are likely to  
influence the respondent’s decision to continue with the existing  
Jatropha Curcas seed production. The result of the pilot study  
indicated that that three out of the five (3/5) farmers interviewed  
in Jigawa state indicated that their personal factors could influence  
their decision to continue with the project (see Table 3). Results in  
Table 3 also shows that all the remaining factors in the table can  
influence the farmer’s decision in Jatropha Curcas production.  
Fossil fuels  
0%  
8
Figure 11: Total percentage of energy used from various sources in  
Nigeria (kWh), Source: (20)  
4
Scenario Based Analysis  
In this section, three different previous studies and their  
4
.2 Scenario 2  
respective outcomes will be given priority with the addition of  
regression analysis. As mentioned earlier, the adaptation of the  
recently published works would employ in this study in order to  
have a comprehensive overview of Jatropha Curcas. Besides that,  
other recent studies related to Jatropha would be briefly  
summarised in Table 2.  
Lim et al., 2010 reported biodiesel production technology  
using supercritical reactive extraction from Jatropha Curcas L oil  
seeds, as a cost-effective processing technology in comparison  
with the local production method and the extraction of oil and  
followed by esterification/transesterification process to fatty acid  
methyl esters (FAME) at the same time in a relatively short period  
of 45-80 min. 0.5-2.0 mm of Jatropha seed and 200-  
3
00°C/240MPa of temperature/pressure was being investigated in  
the research.  
Table 3: Pilot Interview on the Relevance of Each Proposed Determinant  
Farmers  
Personal Factors  
Physical  
Factors  
(distance to  
market and  
farm, rain)  
Economic Factors  
(e.g. Access to  
credit, technical  
support and  
Institutional  
Factors (access to  
credit, technical  
support and  
Risk and  
uncertainty (risk  
behaviour, low  
yield, ants and  
pests  
Social factors  
(influence of  
community,  
family and  
friends)  
(
age, age squared,  
education and  
primary  
occupation  
extension services)  
services)  
Farmers 1  
Farmers 2  
Farmers 3  
Farmers 4  
Farmers 5  
X
X
X
X
X
Source: (9)  
1
064  
Journal of Environmental Treatment Techniques  
2020, Volume 8, Issue 3, Pages: 1060-1068  
1
0.0 ml/g methanol to solid ratio and 2.5mlig of n-hexane  
Curcas and the bye products and also the respondents’  
was also used, which at the end produce oil extraction  
efficiency yield of about 1053%viv and 1035%wfw  
respectively, which exceeded theoretical yield calculated based  
on n-hexane Soxhlet extraction of Jatropha oil seeds. The  
results obtained indicated that the extraction process at lower  
temperature (200-240oC) yield mother than 65% v/v, while, at  
temperatures above 240oC yield higher increment rate  
compared with the previous outcome, since supercritical fluid  
extraction began to take effect, thus, bring the reaction to 100%  
oil extraction. When the particle size is <1.0 produce the best  
supercritical fluid extraction reaction. Conclusively, the  
experiment yield result above novel supercritical reactive  
extraction technology of Jatropha Curcas L seed, which proven  
its economic potential for commercial activities to both  
government and private investors.  
willingness to utilize the product extracted from it.  
(a)  
Jatropha  
Jatropha Oil  
Homesteads  
Fencing  
9% Biodiesel  
Jatropha Oil  
7%  
2
8%  
Live Fencing  
Jatropha Biodiesel  
Live Fencing  
Farm  
2
8%  
Boundaries  
8%  
2
Farm Boundaries  
Homesteads Fencing  
4
.3 Scenario 3  
(b)  
Umar, et al., (2013) explain the rate of awareness,  
Homesteads Fencing 0%  
Farm  
marketability and acceptability of the usefulness of Jatropha  
Curcas plantation in Kano state. The simple random technique  
was used for the study, and Kano state was divided based on  
agricultural activities of the state. 1280 respondents were  
selected randomly amounting to 30% of the respondents tested  
for an oral interview.  
Boundaries  
Live Fencing  
1%  
0%  
Jatropha Oil  
48%  
Descriptive statistical analysis was devised using logic  
regression to test the obtained variables that may affect  
awareness of Jatropha Curcas cultivation in Kano state.  
Respondents who were aware of Jatropha Curcas in Kano state  
were regressed on the following variables: Knowledge of  
Jatropha Curcas seed cake, willingness to use Jatropha Curcas  
oil, willingness to use Jatropha Curcas seed cake and  
willingness to use Jatropha Curcas biodiesel  
Jatropha  
Biodiesel  
5
1%  
푝1 = 푏 + 푏 푏 + 푏 푏 + … . 푏 푏 ……………… (1)  
p1 = Dependent variable (awareness of Jatropha Curcas)  
2
2
Jatropha Oil  
Farm Boundaries  
Jatropha Biodiesel  
Live Fencing  
Homesteads Fencing  
a
=
=
=
Regression constant  
Regression coefficient  
Independent variables  
b1, b2…bn  
x1, x2…xn  
Figure 12: Farmer’s awareness (a) and unawareness (b) of Jatropha  
Curcas products and usefulness. Source: (3)  
(Knowledge of Jatropha Curcas seed cake, willingness to  
use Jatropha Curcas oil, seed cake and biodiesel).  
(a)  
5
Result and Discussion  
Results obtained were presented in the charts below. The  
Jatropha Oil  
15%  
Homesteads  
Fencing  
chart above (Fig.12 a. and b.) reported that live fencing,  
homestead fencing and farm boundaries were more acceptable,  
having the highest percentage of about 22%, while Jatropha oil  
and biodiesel have less percentage acceptability by the farmers.  
Fig. 13. a. and b. acceptability and non-acceptability of  
Jatropha Curcas, respectively. The highest frequencies here  
were homestead fencing and farm boundary with 22% each,  
followed by Jatropha oil (21%), Jatropha biodiesel (20%) and  
least acceptable frequency was Jatropha oil with 15%. This data  
shows that the people of Kano state accepts the use of Jatropha  
Curcas in homestead fencing and farm boundary more than any  
other use. These figures indicated that the respondents do not  
accept the use of Jatropha seed to produce Jatropha oil.  
2
2%  
Jatropha  
Biodiesel  
20%  
Farm  
Boundaries  
2
2%  
Live Fencing  
2
1%  
The usefulness and acceptability of each product by the  
respondents was assessed here in fig.14. Live fencing was the  
most acceptable option with (99.24%). Also, 68.18% accepted  
Jatropha oil and 90.91% accepted biodiesel as opposed to  
Jatropha Oil  
Farm Boundaries  
Jatropha Biodiesel  
Live Fencing  
Homesteads Fencing  
9
.09% of the respondents that were not sure if it is possible to  
Fig. 14 shows the awareness of Jatropha Curcas by the  
Kano state farmers which indicated that it is probably going to  
be influenced by the awareness on the benefits of Jatropha  
Curcas seed cake. The awareness will also likely to influence  
the willingness of the farmers in using seed cake along with  
Jatropha Curcas oil and biodiesel. There was a great high level  
acquire biodiesel from Jatropha Curcas. A great percentage of  
the respondents uses Jatropha Curcas in their household and  
farm boundaries fencing materials. However, the Logit  
Regression Analysis (fig.14) is carried out to examine the  
awareness depth of the respondents’ the usefulness of Jatropha  
1
065  
Journal of Environmental Treatment Techniques  
2020, Volume 8, Issue 3, Pages: 1060-1068  
of acceptance of Jatropha Curcas from the respondents and it  
can be attached to prolong historical use in strengthening  
homestead fencing and delineating farm boundaries.  
The respondents’ willingness to admit Jatropha Curcas  
biodiesel Indicates the hardship in getting diesel fuel around the  
rural or less developed regions and the expectation of earning  
high income (21). he farmers accepted the notion of the  
likelihood of becoming biodiesel producers because of the level  
of experience they have. This statement reinstates the  
discoveries of Singhal and Rogers (22), ((2001) which states  
that “the readiness and ability of farmers accepting new  
findings and innovations is proportional directly to their media  
and communication access like television and radio or when  
they travelled widely across the globe. Singhal and Rogers  
(b)  
Farm Boundaries 0%  
Homesteads  
Fencing  
0%  
Live Fencing  
2
%
Jatropha  
Biodiesel  
(2001) also realized that fresh inventions were accepted very  
2
2%  
fast especially if it can be conducted on a small business scale,  
like demonstration plots. Even though, there were no  
demonstration plots found in the field survey. No Effort made  
by either, Non-Governmental Organizations (NGOs) or  
Community Based Organizations (CBOs) nor the government  
in the demonstration.  
Jatropha Oil  
6%  
7
Jatropha Oil  
Jatropha Biodiesel  
Live Fencing  
(a)  
Farm Boundaries  
Homesteads Fencing  
Half of farm  
Whole farm  
Quarter of  
farm  
2
%
2
%
Source: (3)  
1
3%  
Figure 13: a. (Not Acceptable Frequency) and b. (Not Acceptable  
Frequency) Assessment of acceptability of identified Jatropha  
products and usefulness  
Less than a  
quarter of  
farm  
(a)  
8
3%  
Knoledgesc  
0%  
Constant  
0%  
2
2
Whole farm  
Quarter of farm  
Half of farm  
Less than a quarter of farm  
(b)  
Whole  
Farmland  
willingnessbd  
0%  
Willingjo  
20%  
2
5
%
Half of  
Farmland  
3
0%  
Willingnesssc  
0%  
2
<
One Quarter  
of Farmland  
55%  
Knoledgesc Willingjo Willingnesssc willingnessbd Constant  
One Quarter  
of Farmland  
(b)  
1
0%  
Constant  
9%  
Knoledgesc  
1
Whole Farmland  
Half of Farmland  
< One Quarter of Farmland  
23%  
One Quarter of Farmland  
Source: (3)  
Fig.15: a. (Proportion of Jatropha plantings owned by farmers) and b.  
(
Distribution of respondents’ percentage of farmland that can be  
Willingjo  
committed to Jatropha Biodiesel Production)  
willingnessb  
d
12%  
2
3%  
In Fig.15 a. the proportion of individual farms used in  
Jatropha crop production by farmers is less than quarter of their  
farms with 83% frequency, which shows that the farmers  
mainly agreed to use less Jatropha Curcas production in their  
farms. While the percentage of farmland for biodiesel  
production by the respondents in Fig. 15 b. was less than a  
quarter of the farm with 55% and half of the farm with 30%,  
one-quarter of the farm 10%, and whole farm 5%. This  
indicates that most of the farmers are willing to cultivate  
Jatropha Curcas plant in less than a quarter of their farmland.  
Willingnesss  
c
2
3%  
Knoledgesc  
Willingjo  
Willingnesssc  
willingnessbd Constant  
Source: (3)  
Fig.14: a. (Significant Value) and b. (Standard Error Values) Logic  
Regression on the Awareness of Jatropha Curcas Products by the  
Respondents in Kano state  
1
066  
Journal of Environmental Treatment Techniques  
2020, Volume 8, Issue 3, Pages: 1060-1068  
use Jatropha Curcas as Jatropha biodiesel/oil, and treated seed  
cake for animal feed (3). Also, the government support is very  
less or abandoned, despite the Biofuel Energy Commission and  
Biofuel Research Institute’s approval by the Federal Executive  
Council (FEC) of Nigeria in 2007.  
a.  
<
One  
Quarter of  
Farmland  
Whole  
Farmland  
5%  
30%  
One Quarter  
of Farmland  
10%  
6.2 Recommendation  
The need to revive the production and cultivation of  
Jatropha Curcas is very high. Therefore it should be given the  
attention required, so as to benefit from the nature surrounding  
us, and also to save our dying planet from the use of fossil fuels.  
These can be achieved through an awareness campaign, policy  
amendments, and access to funding from both government and  
private sectors in the country. Both small-scale and large scale  
production should be encouraged to enable the farmers to  
engage in Jatropha farming and also capture people’s interests  
into this money-making business of Jatropha Curcas oil  
production in Nigeria. It will be a great achievement if Nigeria  
can be exporting Jatropha Curcas oil/biodiesel instead of the  
conventional crude oil exportation.  
Half of  
Farmland  
5
5%  
Whole Farmland  
Half of Farmland  
One Quarter of Farmland  
< One Quarter of Farmland  
b.  
<
One  
Quarter of  
Farmland  
Whole  
Farmland  
1
0%  
31%  
References  
1
. Dehgan B. Phylogenetic Significance of Interspecific Hybridization  
One Quarter  
of Farmland  
in Jatropha (Euphorbiaceae). Am Soc Plant Taxon. 1984;9(4):467–  
7
8.  
29%  
2
.
.
.
.
Jatrophaworld. BIODIESEL BUSINESS ACADEMY Building a  
Better Tomorrow ADVANCED BIOFUEL CENTER Building a  
Sustainable Biodiesel Industry [Internet]. 2007. Available from:  
https://www.jatrophaworld.org/index.html%0D  
Umar, A. F. IOA and LP. Awareness and Acceptability of the  
Usefulness and Products of Jatropha curcas (L.) Plant in Kano  
State, Nigeria. Adv J Agric Res [Internet]. 2013;1(7):11221.  
Available from: http://www.advancedjournals.org/AJAR  
John E. Erwin DS and RD. FACTORS AFFECTING  
PROPAGATION OF CLEMATIS BY STEM CUTTINGS. Am  
Soc Sorticultral Sci [Internet]. 1997;7(4):408410. Available  
from: https://doi.org/10.21273/HORTTECH.7.4.408  
Thelma MN. Desertification in northern Nigeriaꢀ: Causes and  
implications for national food security. Peak J Soc Sci Humanit  
Half of  
Farmland  
30%  
3
4
5
Whole Farmland  
Half of Farmland  
< One Quarter of Farmland  
One Quarter of Farmland  
Source: (3)  
Fig.16: a. (Farmland for Jatropha Production with Market vailability)  
and b. (Farmland with Government Incentive)  
The distribution of farmland allocated to Jatropha Curcas  
cultivation with ready market to the farmers was shown in  
Fig.16 a., 55% of the respondents use half of their farms, 30%  
use whole of their farm, 10% use one quarter of their farm, and  
only 5% use less than a quarter of the farm. This shows that  
most of the respondent uses half of their farmland in the  
cultivation of Jatropha Curcas production due to the fact that  
they have a ready market. While farmland with government  
incentives was shown in Fig.16 b. where the respondents are  
willing to use the whole of their farm with 31%, followed half  
of their farm with 30%, one quarter with 29% and finally less  
than quarter if the farm with 10%. This literally shows if the  
government intervene into Jatropha Curcas cultivation, most of  
the farmers will be willing to use whole their farmland in  
Jatropha Curcas production.  
Vol  
[Internet].  
2015;3(2):2231.  
Available  
from:  
https://www.peakjournals.org/sub-journals-PJSSH.htm  
6. Maggio G, Cacciola G. When will oil, natural gas, and coal peak?  
Fuel [Internet]. 2012;98(2012):11123. Available from:  
http://dx.doi.org/10.1016/j.fuel.2012.03.021  
7
.
Devanesan MG, Viruthagiri T, Sugumar N. Transesterification of  
Jatropha oil using immobilized Pseudomonas fluorescens. African  
J Biotechnol [Internet]. 2007;6(21):2497501. Available from:  
https://www.ajol.info/index.php/ajb/article/view/58115/46479%0  
D
8. Gupta A, Kumar A, Agarwal A, Osawa M, Verma A. Acute  
accidental mass poisoning by Jatropha curcas in Agra, North India.  
Egypt J Forensic Sci [Internet]. 2016;6(4):496500. Available  
from:  
http://www.journals.elsevier.com/egyptian-journal-of-  
forensic-sciences SHORT  
9
.
Mas’ud A. Determinants of smallholder farmers’ continuous  
adoption of Jatropha as raw material for biodiesel production: a  
proposed model for Nigeria. Biofuels [Internet]. 2016;7(5):549–  
Conclusively (3) reported that income and employment  
generation of Jatropha Curcas production is very less. People  
were not aware of the biodiesel present in Jatropha Curcas seed,  
as most of them use it in their farm boundaries. All the benefits  
of Jatropha Curcas were found to be highly acceptable by the  
respondents.  
5
7.  
Available  
from:  
https://doi.org/10.1080/17597269.2016.1168022  
10. Iloeje NP. A new geography of Nigeria. Longman Nigeria PLC.  
new revise. 2001.  
1. Mortimore M. Adapting to drought: Farmers, famines and  
desertification in West Africa. Cambridge: Cambridge University  
Press.; 1989.  
2. Lim S, Hoong SS, Teong LK, Bhatia S. Supercritical fluid reactive  
extraction of Jatropha curcas L. seeds with methanol: A novel  
biodiesel production method. Bioresour Technol [Internet].  
1
6
Conclusion and Recommendation  
6
.1 Conclusion  
1
The data presented above shows that there is a very high  
rate of awareness and acceptability of Jatropha Curcas plant by  
the farmers in Kano state and Nigeria as a whole. Though, there  
was low awareness of its opportunities and economic benefits  
by the local farmers, such as income, health, medicinal,  
environmental benefits and employment opportunities. The  
research also shows a high rate of the farmer’s willingness to  
2
010;101(18):716972.  
Available  
from:  
http://dx.doi.org/10.1016/j.biortech.2010.03.134  
1
3. Hoong S, Teong K, Harun A, Yusup S. Reactive extraction and in  
situ esterification of Jatropha curcas L . seeds for the production of  
biodiesel. ESLERVIER Fuel [Internet]. 2010;89(2):52730.  
1
067  
Journal of Environmental Treatment Techniques  
2020, Volume 8, Issue 3, Pages: 1060-1068  
Available from: http://dx.doi.org/10.1016/j.fuel.2009.07.011  
1
4. Somorin TO, Di Lorenzo G, Kolios AJ. Life-cycle assessment of  
self-generated electricity in Nigeria and Jatropha biodiesel as an  
alternative power fuel. Renew Energy [Internet]. 2017;113:966–  
7
9.  
Available  
from:  
http://dx.doi.org/10.1016/j.renene.2017.06.073  
1
1
5. Goswami K, Saikia J, Choudhury HK. Economic Benefits and  
Costs of Jatropha Plantation. 2011;24:99108.  
6. Brittaine, R., & Lutaladio NB. JATROPHA: A SMALLHOLDER  
BIOENERGY CROP. Vol. 8, Food and Agriculture Organization  
of the United Nations (FAO). 2010. 2754 p.  
1
7. Wiesenhutter J. Use of Physic Nut (Jatropha curcas L.) to Combat  
Desertification and Reduce Poverty. Deutsche Gesellschaft fur  
Technische Zusammenarbeit (GTZ).Convention Project to  
Combat Desertification (CCD Project). 2003.  
1
1
8. Ali N, Kurchania AK, Babel S. Bio-methanisation of Jatropha  
curcas defatted waste. J Eng Technol Res. 2010;2(3):3843.  
9. Akinbami JFK, Ilori MO, Oyebisi TO, Akinwumi IO, Adeoti O.  
Biogas energy use in Nigeria: current status, future prospects and  
policy implications. Renew Sustain energy Rev. 2001;5(1):97–  
1
12.  
0. WorldData. Energy consumption in Nigeria [Internet].  
WorldData.info. 2015. Available from:  
2
https://www.worlddata.info/africa/nigeria/energy-  
consumption.php  
2
2
1. Achimugu S. The Nigerian bio energy policy and Incentives: The  
National Workshop on Jatropha curcas for Renewable Energy  
Development, Kano. 2008.  
2. Singhal A, Rogers EM. India’s Communication Revolution: From  
Bullock Carts to Cyber Marts. 2001.  
1
068