INTERNATIONAL JOURNAL OF RESEARCH AND INNOVATION IN APPLIED SCIENCE (IJRIAS)
ISSN No. 2454-6194 | DOI: 10.51584/IJRIAS |Volume X Issue IX September 2025
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Analysis of Proximate and Phytomicrobial Properties of Fluted
Pumpkin and white Leadwort Obtained from Some Botanical
Gardens in Warri South Local Government
Osaide Stella Eguono Oritsegbubemi
a*
, Chukuka, Vivian Ishioma
b
a
Biology Department, College of Education, Warri, Delta State
b
Dept of Biological science, Dennis Osadebay University, Anwai, Asaba, Delta State
Corresponding Author
DOI: https://dx.doi.org/10.51584/IJRIAS.2025.1009000102
Received: 10 September 2025; Accepted: 16 September 2025; Published: 25 October 2025
ABSTRACT
Fluted pumpkin (Telfairia occidentalis) is a leafy vegetable cultivated and consumed for its valuable nutrients
and minerals, which are effective against micronutrient deficiencies. At the same time, white leadwort
(Plumbago zeylanica) is an important medicinal plant used in traditional systems of medicine to treat
gonorrhoea, syphilis, tuberculosis, rheumatic pain, swellings, piles, diarrhoea, skin diseases, and leprosy. They
possess antibacterial and anti-fungal properties. Dried samples and extracts of fluted pumpkin (Telfairia
occidentalis) and white leadwort (Plumbago zeylanica) were analysed for protein, fat, fibre, carbohydrate,
moisture, and ash. Pumkin had a higher value for moisture content (43.11%) and a lower value for fat (1.97%),
while Leadwort had a higher value for fibre (31.76%) and a lower value for protein (4.82%). Phytochemical
analysis of pumpkin constituent Alkaloids (0.81%), Saponins (0.59%) and flavonoids (0.04%), while that of
lead-wort was Alkaloids (0.39%), Saponins (0.68%) and flavonoids (0.03%). Fluted pumpkin (Telfairia
occidentalis) showed a higher percentage of phytochemical content than white leadwort (Plumbago
mechanical). Therefore, both Telfairia occidentalis and Plumbago zeylanica may be considered as rich in
proximate and phytochemical and potential
INTRODUCTION
Background to the Study
Food security is a function of the population with a corresponding rate of crop production to suffice their need
for nutrition. Food security is having adequate, safe, and nourishing food to satisfy nutritional needs. The
human population has remained on the rise with a consequent decrease in arable lands for the cultivation of
crops (Agogbua et al., 2022). In Nigeria, vegetables are found in the Southeast region, where vegetables are
combined in their diet as soup, but in the Southwest, they are separately used as decoction or infusion and
therefore taken as medicine. They contain nutrients in the right proportions, which could make them be
referred to as balanced diets; therefore, people are encouraged to eat vegetables, especially when sick.
Vegetables are rich in vitamins, minerals, antioxidants, fibres, carbohydrates and secondary metabolites; these
are crucial for maintaining optimal health and preventing chronic diseases (Ayoola et al., 2020). The leaves,
fruits and seeds of vegetables in Nigeria are edible (by boiling, roasting or baking) and have high nutritional
qualities. Most of these plant parts are used as medicine. (Akpasi et al., 2023)
The use of plants for medicinal purposes dates back to traditional medicine, where they were used to treat
various ailments and diseases. The medicinal value of plants lies in some chemical substances that produce a
definite physiological action on the human body (Sumitra et al., 2013). In recent years, scientists have
intensified their efforts to explore the nutritional and medicinal properties of plants to develop new treatments
and health-promoting products (Supuran, 2023)
Botanical gardens conserve plant diversity as plants can be grown and studied there. This study focuses on two
INTERNATIONAL JOURNAL OF RESEARCH AND INNOVATION IN APPLIED SCIENCE (IJRIAS)
ISSN No. 2454-6194 | DOI: 10.51584/IJRIAS |Volume X Issue IX September 2025
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plants, Plumbago zeylanica (leadwort) and Telfairia occidenttalis (Ugu Leaf), from a botanical garden in Warri,
Delta State, Nigeria. "Ugwu" is the Igbo term for the fluted pumpkin (Tellfairia occidentalis), which is a
creeping leafy plant with enormous lobed leaves and lengthy, winding tendrils. Telfairia occidentalis is
classified in the tribe Joliffieae of the subfamily Cucurbitaceae. It is grown in many nations of West Africa but
is mainly cultivated in southeastern Nigeria, and it is used primarily in soups and herbal medicines (Agbai,
2023). This green vegetable is a good source of vitamin C, phytochemicals, dietary fiber, carotenoids, folate,
and certain minerals but has low lipid, dietary fiber, carotenoids, folate, and certain minerals, but have low
lipid, carbohydrate and protein concentration (Oboh et al., 2009) . It is a nutrient-rich vegetable widely grown
in Nigeria. Its leaves are packed with iron, vitamins, minerals, antioxidants, and phytochemicals, making it an
excellent addition to a healthy diet. The leaves can be applied topically to treat burns, hematinic and act as an
analgesic. Pulp has historically been used to help with stomach issues like dyspepsia and intestinal irritation.
Pumpkin fruit is high in Vitamin A, which is important for vision, growth, and disease prevention. It also has
notable amounts of lycopene, dietary fiber, vitamin C, and vitamin E (Akpasi et al., 2023).
Young leaves mixed with coconut water and dyspepsia salt can be stored to treat convulsions, and their extract
helps manage high cholesterol, liver problems, and weak immune systems. However, seed oil can raise lipid
levels if eaten too much. In areas where Telfairia occidentalis is consumed frequently, there are few cases of
protein-energy malnutrition. Its use in reproduction is rising, as it may help with testicular damage and sperm
production. The leaves' extract is popular for fighting oxidative damage, and in Nigeria, fresh leaves are made
into juice for postpartum women. The root has properties similar to chloroquine and can suppress certain
bacteria but is also toxic and used as a rodenticide (Omimakinde et al., 2018).
The anticancer potential of Telfairia occidentalis has been demonstrated through several studies. The crude
extract of the seed inhibits oxidative burst activity in whole blood, isolated polymorph nuclear cells (PMNs),
and mononuclear cells (MNCs). The presence of phenolic compounds, flavonoids, and other constituents in the
leaves contributes to the plant's chemo-suppressive activity. Given the established high antioxidant property of
Telfairia occidentalis, it is likely that its anticancer activity is linked to these antioxidant components (Eseyin
et al., 2014; Okokon et al., 2012). The plant also shows potential in enhancing male fertility, as it improves
sperm mobility, viability, and count and increases testosterone, luteinizing hormone, and testicular weight. Its
prophylactic effect on alcohol-induced testicular damage and its beneficial impact on semen quality further
highlight its therapeutic value in male fertility (Eseyin et al., 2014; Seungjin et al., 2020).
A study has shown that the ethanol root extract of Telfairia occidentalis possesses antiplasmodial potential and
inhibitory effects on some Enterobacteriaceae, while Telfairia occidentalis anti-inflammatory activities were
also reported (Oyewole and Abalaka 2012). In the fight against malaria, Telfairia occidentalis has shown
significant blood schizonticidal activity, with the root, leaf, and seed extracts demonstrating antiplasmodial
activity. The plant's extracts have shown high in vitro synergistic activities with chloroquine and against
chloroquine-tolerant Plasmodium berghei isolates, indicating its potential as an alternative antimalarial
treatment (Eseyin et al., 2014).
The antimicrobial activity of Telfairia occidentalis is also noteworthy. The leaf extract exhibits antibacterial
activity against selected intestinal pathogens such as E. coli, S. faecalis, and S. typhi. The ethanol extract
inhibits the growth of various Enterobacteriaceae, and the crude extract shows synergistic effects with
antibiotics on a majority of the tested bacteria. The aqueous extracts also demonstrate higher worm inhibitory
and destructive activities compared to methanol extracts (Eseyin et al., 2014)
Plumbago zeylanica is a medicinal plant commonly known as “White leadwort” or “chitrak.”. It belongs to the
Plumbaginaceae family and is a perennial herb that is found in Uttar Pradesh, West Bengal, Maharashtra, and
also in some parts of South India (Mandavkar and Jalalpure, 2011). The root and root bark of this herb are
utilised in the preparation of various Ayurvedic medicines. In the traditional system of medicine, it plays a
significant protective role in the enlarged liver and spleen. It is a bitter tonic and is suggested as a rejuvenant,
well known for its use in chronic colds and coughs. It also finds its use in correcting chronic diseases of the
nervous system, viral warts and chronic menstrual disorders. Also, it is recommended for piles, worms, and
colitis. The Extract of chitramula is reported as an anticancer drug. The root bark is additionally considered
beneficial in obesity. It has been potentially useful for loss of appetite and indigestion. The root is used
extensively in India and China to treat contusions of extremities, cancer, rheumatoid arthritis, and
dysmenorrhea (Parmar, 2024). An alkaloid called plumbagin is found in the roots. It is responsible for various
therapeutic properties like antioxidant, antimalarial, antibiotic, anti-fertility, anticancer, and cardiotonic
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(Parmar, 2024).
Flowers of this plant are used as digestants, and leaves possess aphrodisiac properties. They are used in the
treatment of scabies, soreness, and swelling. Leaves have shown their effective role in treating infections and
digestive problems such as dysentery. They are also used as stimulants (Shukla et al., 2021).
The root is used extensively in India and China to treat contusions of extremities, cancer, rheumatoid arthritis,
and dysmenorrhea (Parmar, 2024). It is responsible for various therapeutic properties like antioxidant,
antimalarial, antibiotic, antifertility, anticancer, and cardiotonic (Parmar, 2024). The roots of this plant are
demonstrated as laxative, expectorant, tonic, and a good appetiser. Roots are also reported to be beneficial in
the treatment of rheumatism, laryngitis, scabies and disease of the spleen. The decoction of the seeds is used
for reducing muscular pain (Arpita, 2017).
Plumbago zeylanica, as a potent medicinal agent, can be used in the treatment of skin diseases, joint pain,
stubborn chronic rheumatoid arthritis, and numerous growths. It also finds use in correcting chronic menstrual
disorders, viral warts, and chronic diseases of the nervous system. Obesity can be resolved using root bark.
Plumbago zeylanica contains various bioactive compounds like alkaloids, flavonoids, napthoquinones,
glycosides, saponins, steroids, tri-terpenoids, coumarins, phenolic compounds, tannins, carbohydrates, fixed
oils, fats, and proteins (Roy and Bharadvaja, 2017). The Plumbago zeylanica plant has several medicinal
properties, including anti-bacterial, anti-tumour, and anti-inflammatory effects. It is part of the Plumbaginaceae
family, which includes 10 genera and 280 species. Plumbago zeylanica, also known as Ceylon leadwort or
chitrak in Ayurveda, is especially valued for its therapeutic benefits. This perennial herb, commonly found in
India and Sri Lanka, is cultivated for its attractive flowers (Shukla et al., 2021). Its leaves have aphrodisiac
properties and are used to treat scabies, infections, and digestive issues. They can also be applied topically for
rheumatic pain and skin conditions.
Additionally, it is important to ascertain the nutritional, medicinal and antimicrobial values of these plants to
scientifically validate the use of Telfairia occidentalis and Plumbago zeylanica, and this can have practical
implications for community health and well-being in Warri (Delta state, Nigeria) and beyond. These plants
may contain bioactive compounds and have therapeutic properties that can provide an alternative solution for
various health issues. Hence, this study aims to investigate the nutritional, medicinal and anti-microbial
properties of Telfairia occidentalis and Plumbago zeylanica from a botanical garden in Warri. Despite their
potential as a source of essential nutrients and therapeutic agents, the nutritional and medicinal properties of
Telfairia occidentalis and Plumbago zeylanica and the use of these plants as traditional medicines have not
been scientifically validated.
MATERIALS AND METHODS
Research Design: The research design used in carrying out this study is the analytical Method, whereby the
vegetable samples collected in different gardens were subjected to laboratory analysis. This is to provide a
detailed understanding of the nutritional and medicinal values of the vegetable samples.
Description of the Study Area: The study areas are Edjeba in Warri and Effurun off Warri-Sapele Road by
Army Housing Estate, Delta State, Nigeria. Edjeba is located under the Warri South Local Government Area,
with georeferenced coordinates of 5031’2.53” N (latitude) and 5045’1.22” E (longitude). The Army Housing
Estate is located under the Uvwie Local Government Area, with georeferenced coordinates of 5013’07.9” N
(latitude) and 50’36’12.3” E (longitude). These study areas are in the Niger Delta region of Nigeria.
Fig. 3: Location Map showing the Sampling Area of Fluted Pumpkin and leadwort
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Sample Collection: The vegetable samples were collected at two different study areas. Pumpkin leaves were
collected from a garden in the Edjeba area, under Warri South Local Government, while the White Leadwort
leaves were collected from a garden in Effurun off Warri-Sapele road by Army Housing Estate, Delta State,
Nigeria. These vegetable leaves were harvested fresh, preserved in polythene bags, and transported to the
laboratory for analysis.
Sample Preparation: The fresh vegetable samples were identified, washed with clean water and reweighed.
Then, the samples were air-dried except for the moisture content parameter, which was subjected to oven
drying. Then ground by pulverization method using a mortar and pestle, after which they were sieved through
a mesh of 2mm diameter, and stored in an air-tight polythene bag, and kept in desiccators until the time for
analysis.
Methods of Analysis: The proximate composition of the vegetable samples was determined using the
Association of Official Analytical Chemists methods (AOAC, 2004).
Determination of Moisture Content: The moisture content of the vegetable samples was determined using
AOAC standard methods (2004). The crucibles were washed, dried at 105°C for 30 minutes, and then cooled
in a desiccator. Their weights were recorded as W1. Next, 2.0 g of finely ground vegetable samples were added
to the crucibles, and their weights were noted as W2. The sample and crucible were dried at 100°C for 4 hours,
then cooled for 30 minutes until constant weights were reached, recorded as W3. The moisture content was
calculated using the appropriate formula:
% Moisture = (W2 W3) x 100
(W2 W1)
Where, W1 = Initial weight of empty crucible,
W2 = Weight of crucible + sample before drying and
W3 = Final weight of crucible + sample after drying
Determination of Ash Content: The total ash content of the vegetable sample was determined using the
incineration method described by AOAC (2004). About 2.0 g of the finely ground dried sample was placed in
a porcelain crucible and incinerated at 600°C for 6 hours in a muffle furnace (Model 1184A Fisher Scientific,
Houston, TX). After cooling the ash in a desiccator, it was reweighed to calculate the percentage of ash content
in the sample:
% Ash = Weight of Ash x 100
Weight of the rare sample
Determination of Crude: Fibre Crude fibre was determined using the AOAC (2004) method. About 2.0 g of
the vegetable sample was hydrolyzed with petroleum ether, then boiled for 30 minutes with 200 ml of 1.25%
H
2
SO
4
solution. After filtration through a fluted funnel, the residue was washed with boiled water. It was then
boiled again for 30 minutes with 200 ml of 1.25% NaOH solution, washed with boiled distilled water, and
filtered through a Gooch crucible. The residue was dried at 10000°C for 2 hours in an oven. The percentage of
crude fibre was calculated using the appropriate formula:
% Crude fiber = (Wt. after drying) x 100
(Wt. of the sample)
Determination of Fat: The total fat content in vegetable samples was determined using Soxhlet extraction
with methanol and ethanol. Boiling flasks (250 ml) were dried in an oven at 105110°C for about 30 minutes
and then cooled in a desiccator. Approximately 2.0 g of each sample was placed into labeled thimbles. The
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dried flasks were weighed and filled with about 300 ml of petroleum ether (boiling point 4060°C), with the
thimbles plugged with cotton wool. The Soxhlet apparatus was assembled and refluxed for 6 hours.
Afterwards, the thimble was removed, and the petroleum ether was collected for reuse. Following extraction,
the flask was dried at 105110°C for 1 hour, cooled in a desiccator, and reweighed. The percentage of fat in
the vegetable sample was then calculated using the appropriate formula:
% fat = Weight of fat x 100
Weight of sample
Determination of Protein: The Micro-Kjeldahl method was used to determine the crude protein content of the
vegetable samples as outlined by AOAC (2004), which comprises two essential steps: protein digestion and
distillation.
a. Protein Digestion: Begin by weighing 2.0 g of the vegetable sample and placing it in a Kjeldahl flask. Add
1.0 g of copper sulfate, a small amount of selenium catalyst, and 25 ml of concentrated sulfuric acid. Heat the
mixture gently in a fume cupboard until it achieves a green colour, maintaining a temperature above 420°C for
approximately 30 minutes. Once cooled, wash down any black particles at the neck of the flask with distilled
water. Transfer the digest to a 250 ml volumetric flask, perform several rinses with distilled water, and bring
the volume up to the mark before proceeding to distillation.
b. Protein Distillation: Steam the Markham distillation apparatus for 15 minutes before use. Position a
conical flask containing 5 ml of boric acid indicator under the condenser. Pipet approximately 5.0 ml of the
digest into the apparatus, washing it down with distilled water, and then add 50 ml of 60% sodium hydroxide.
Steam the mixture for about 5-10 minutes to collect ammonium sulfate in the receiving flask. Finally, treat the
solution in the receiving flask with 0.01 M hydrochloric acid, running a blank sample concurrently.
Calculate the percentage of nitrogen using the specified formulas:
% fat = Weight of fat x 100
Weight of sample
Where,
Vs = Volume (ml) of acid required to titrate the sample;
Vb = Volume (ml) of acid required to titrate the blank;
M-acid = Molarity of acid;
W = Weight of the sample (g).
Then, the percentage crude protein in the vegetable sample was calculated from the % Nitrogen as: % crude
protein = % N x F
Where F(the conversion factor), is equivalent to 6.25.
Determination of Carbohydrate: The carbohydrate content in vegetable samples was found by adding the
amounts of protein, fat, fibre, moisture, and ash, then subtracting from 100.
% carbohydrate =100 (% moisture + % crude fiber + % protein + % Fat + % ash).
Phytochemical Analysis
A modified method of Sofowara (1993) was used for the determination of Alkaloids, flavonoids and saponins.
Alkaloid
2. 0 g of dried leaf extract was weighed and combined with 200 ml of 10% acetic acid in ethanol. The mixture
was covered and allowed to sit for four hours. After being filtered, the solution was evaporated in a water bath
to a quarter of its original volume. The extract was supplemented with the concentrated NH
4
OH until
precipitation was finished. The mixture was then filtered after being rinsed with dilute NH4OH. After being
dried and weighed, the alkaloid concentration of the residue was measured.
Alkaloid (%) = Weight of precipitate x 1 x 100
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Weight of the rare sample
Flavonoid
With 100 mL of 80% aqueous methanol, 2.0g of leaf plant powder was repeatedly extracted for one day. The
entire solution was then filtered via the Whatman filter paper. After that, the filtrate was put into a crucible,
dried in a water bath, and then weighed until it was consistent. The flavonoid concentration in the plant leaf
specimen was calculated using the weight measured.
Flavonoid (%) = Weight of dried sample x 100
Weight of original sample
Saponin
After being shaken in 50 ml of 20% ethanol for 30 minutes, the 2. 0 g of dried leaf powder was heated in the
solution. a four-hour water bath at 55 °C. The combination was filtered using Whatman filter paper. The
accumulated residue was reextracted using an additional 200 ml of 20% aqueous ethanol. The filtrates were
mixed and concentrated in a water bath at 90°C to a volume of 40 ml. The concentrate was poured into a
separating funnel, 20 ml of diethyl ether ((C2H5)2O) was added, and the mixture was vigorously shaken. The
aqueous layer was kept in a beaker while the ether layer, which was the top layer, was discarded. Sixty
millilitres of n-butanol was introduced into a separating funnel, and the mixture was shaken vigorously. The
lower layer of the extract was discarded, while the upper layer of the C₄H₁₀O extract was kept. Ten millilitres
of 5% aqueous sodium chloride were used to wash the C₄H₁₀O layer twice. The remaining solution was
gathered, dried in an oven at 40 °C to a consistent weight, and then evaporated in a water bath.
Saponin (%) = Weight of residue x 100
Weight of the rare sample
Data Analysis
The results were statistically analysed using ANOVA (Analysis of Variance), where the mean, standard error,
and standard deviation were considered.
.
RESULTS AND DISCUSSION
Results
The detailed results of the laboratory analysis of vegetable samples are presented below. The proximate and
phytochemical compositions of both pumpkin and leadwort are statistically presented in Tables 1 and 2. Table
1(proximate composition) revealed the presence of protein, Fat, fibre, Carbohydrate, Moisture and Ash content
of various percentages. Table 2 (phytochemical compositions) results indicated the presence of saponins,
alkaloids, and flavonoids. Graphical representations are also shown below in Figs. 1 and 2.
Table 1: Average Results of Nutritional Composition (Proximate Analysis) of the Vegetable Samples
Protein Content
%
6.19 (±0.02)
4.82 (±0.01)
Fat Content
%
1.97 (±0.02)
2.97 (±0.01)
Fibre Content
%
23.81 (±0.01)
31.76 (±0.02)
Carbohydrate
%
16.87 (±0.01)
13.97 (±0.01)
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Moisture Content
%
43.11 (±0.01)
39.85 (±0.01)
Ash Content
%
8.07 (±0.01)
6.65 (±0.02)
Table 2: Average Results of Phytochemicals in the Vegetable Samples
Alkaloids Content
%
0.81 (±0.01)
Saponins Content
%
0.59 (±0.01)
Flevonoids Content
%
0.04 (±0.01)
Fig.1: Graphical representation Proximate Composition (Nutritional Analysis) of the Vegetable Sample
FIG.2: Graphical Representation of Some Phytochemical Components of Pumpkin and Leadwort Vegetables
DISCUSSION
This study has analyzed phytochemical components of the two samples which has variety health benefits
while the proximate composition refers to the nutritional constituent of the samples.
0
5
10
15
20
25
30
35
40
45
50
PERCENTAGE
PROXIMATE COMPOSITION OF PUMPKIN AND LEADWORT
Pumpkin
Leadwort
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
Alkaloids Saponins Flavonoids
PERCENTAGE
MEDICINAL COMPOSITION OF PUMPKIN AND LEADWORT
Pumpkin
Leadwort
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The Proximate Nutrients of the samples had a mean carbohydrate content of 16.87% for
The samples had a mean carbohydrate content of 16.87% for pumpkin with a standard deviation of ±0.01,
while leadwort had a lower carbohydrate content of 13.97% with a standard deviation of ±0.01 (Fig. 1). This
low carbohydrate content is attributed to the class of food that the vegetable belongs to. Udoh (2017) presented
in his report that the carbohydrate content of the full-fat samples ranged between 9.81% and 13.28% while that
of the deflated samples ranged between 10.49% and 17.54%. This result is just like that of this study.
The ash content of the sample gives an idea of the mineral elements present in the vegetable sample. In this
study, pumpkin vegetable had a high ash content, with the value of 8.07% 0.01), while leadwort vegetable
had the value of 6.65% 0.02).
Among the two sample varieties, Pumpkin had the highest protein content of 6.19% (±0.02), while leadwort
had 4.82% (±0.02) (Fig. 1). The result shows that pumpkin contains more protein content than white leadwort.
It is worth noting that the amino acid balance of vegetable protein is exceptionally good, which would reduce
protein malnutrition. Nzeagwu et al. (2020) reported a higher percentage of protein, ranging from 21.90 %
(roasted) to 26.01 % (boiled). The percentage fibre content of the vegetable samples was 23.81% (±0.01) for
Pumpkin and 31.76% (±0.02) for leadwort.
Higher percentage moisture content was observed in Pumpkin with a value of 43.11 (±0.01), while the
leadwort had a moisture content of 39.85% (±0.01) (Fig. 1). This high moisture content observed in the two
vegetables is attributed to the high percentage of water holding capacity of the vegetables Okonwu et al.
(2018) reported a high moisture content of 86%, for pumpkin, lower moisture content result to longer shelf
life. The percentage fat content of pumpkin had a mean value of 1.97% (±0.02), while the leadwort had a value
of 2.97% (±0.01). This study revealed that leadwort had a higher content of fat when compared to pumpkin.
Udoh (2017) reported that the fat content of samples ranged between 40.67% and 45.91%. These values,
however, were higher than the 1.37% oil content reported by Hamed et al. (2008)
Phytochemical components which are known as bioactive plant chemicals, evaluated in the vegetable samples
showed lower concentrations. Pumpkin vegetable had the mean values of 0.81%, 0.59% and 0.04% for
alkaloids, saponins and flavonoids, respectively, while white leadwort had values of 0.39%, 0.68% and 0.03%,
respectively (Fig. 2). The result, however shows that the percentage of alkaloids (0.81%) and flavonoids
(0.04%) are present in the Pumpkin vegetable samples are higher than those found in leadwort vegetables
samples while the saponins (0.59%) found in pumpkin are lower than those found in leadwort (0.81%)
samples.
CONCLUSION
This study examined the Proximate analysis and phytochemical composition of two tropical green leafy
vegetables, Telfairia occidentalis (Pumpkin) and Plumbago zeylanica (Leadwort), revealing significant
variations in their nutritional composition. Telfairia occidentalis demonstrated higher carbohydrate, protein,
and mineral (ash) content, while Plumbago zeylanica offered greater fibre and fat levels. The relatively high
moisture in Telfairia occidentalis suggests a shorter shelf life, making it susceptible to quicker spoilage.
Phytochemical analysis revealed that both samples contain alkaloids, saponins, and flavonoids, but at low
concentrations, with potential health benefits such as diabetes, cancer, inflammation, obesity, hepatotoxicity,
and other diseases. Therefore, the nutritional and medical composition of Pumpkin and leadwort is necessary
for improving the human diet and overall health condition.
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