Paper · 2025 · Dutse Journal of Pure and Applied Sciences

Evaluation of phytochemical composition, antioxidant activity, and antibacterial properties of Terminalia mantaly H. perrier leaf extract

A.Y. Yunusa; M.A. Yakasai; M.M. Namadina

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citations
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Open access · cc-by-nc

Abstract

Terminalia mantaly, a plant indigenous to Africa, is recognized for its medicinal benefits. This research was conducted to assess the phytochemical composition, antioxidant potential, antibacterial effectiveness, and toxicological properties of the methanolic extract from Terminalia mantaly leaves. Phytochemical analysis was performed using standard qualitative methods. The antibacterial activity was evaluated using the agar well diffusion technique. The antioxidant capability of the extract was measured using the 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay. Phytochemical screening indicated the presence of alkaloids, flavonoids, saponins, cardiac glycosides, tannins, steroids, triterpenes, and phenols in the extract. The extract demonstrated strong antioxidant activity, with an IC50 value of 6.837 µg/mL, though this was lower than that of ascorbic acid (0.01 µg/mL). The antibacterial assays showed that the extract was effective against clinical strains of Staphylococcus aureus, Escherichia coli, and Salmonella typhi, with minimum inhibitory concentrations (MICs) and minimum bactericidal concentrations (MBCs) ranging from 7.8125 to 15.625 mg/mL. Fourier-transform infrared (FTIR) spectroscopy identified functional groups such as alcohols, phenols, carboxylic acids, aldehydes, and ketones, which correspond to various secondary metabolites. Additionally, the extract exhibited significant toxicity against brine shrimp larvae, suggesting its potential use as a natural insecticide. Overall, the results indicated that Terminalia mantaly leaves contain valuable phytochemicals with notable antioxidant, antibacterial, and toxicological properties, meriting further exploration for pharmaceutical and nutraceutical applications. This study demonstrates the effectiveness of Terminalia mantaly against the tested clinical isolates.

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Claims 7

Observationobservedoriginal resultmeasured

Claim · model-written summary

Phytochemical screening indicated the presence of alkaloids, flavonoids, saponins, cardiac glycosides, tannins, steroids, triterpenes and phenols in Terminalia mantaly leaf extract.

Taxon
Terminalia mantalyTerminalia mantalye0
Outcome
presence of alkaloids, flavonoids, saponins, cardiac glycosides, tannins, steroids, triterpenes, and phenolse1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Terminalia mantaly
Terminalia mantaly · Taxon阿橋 HQ · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Terminalia mantaly, a plant indigenous to Africa”

✓ located verbatim in the source · abstract, characters 0–48 · show in text ↑
e1

“Phytochemical screening indicated the presence of alkaloids, flavonoids, saponins, cardiac glycosides, tannins, steroids, triterpenes, and phenols in the extract”

✓ located verbatim in the source · abstract, characters 564–725 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

The leaf extract demonstrated strong antioxidant activity.

Taxon
Terminalia mantalyTerminalia mantalye0
Outcome
antioxidant activitye2
Qualifier
stronge2

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Terminalia mantaly
Terminalia mantaly · Taxon阿橋 HQ · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Terminalia mantaly, a plant indigenous to Africa”

✓ located verbatim in the source · abstract, characters 0–48 · show in text ↑
e2

“The extract demonstrated strong antioxidant activity, with an IC50 value of 6.837 µg/mL”

✓ located verbatim in the source · abstract, characters 727–814 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

The extract IC50 of 6.837 µg/mL was lower than that of ascorbic acid.

Taxon
Terminalia mantalyTerminalia mantalye0
Outcome
IC50 valuee2
Direction
lowere2
Value
6.837 µg/mLe2
Qualifier
0.01 µg/mLe2
Comparator
ascorbic acide2

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Terminalia mantaly
Terminalia mantaly · Taxon阿橋 HQ · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Terminalia mantaly, a plant indigenous to Africa”

✓ located verbatim in the source · abstract, characters 0–48 · show in text ↑
e2

“The extract demonstrated strong antioxidant activity, with an IC50 value of 6.837 µg/mL, though this was lower than that of ascorbic acid (0.01 µg/mL)”

✓ located verbatim in the source · abstract, characters 727–877 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

The leaf extract was effective against clinical strains of Staphylococcus aureus, Escherichia coli and Salmonella typhi.

Taxon
Terminalia mantalyTerminalia mantalye0
Interactor
Staphylococcus aureusStaphylococcus aureuse3pathogen
Second interactor
Escherichia coliEscherichia colie3pathogen
Outcome
effective against clinical strainse3

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Terminalia mantaly
Terminalia mantaly · Taxon阿橋 HQ · CC BY-SA 2.0 · Wikimedia Commons ↗
Staphylococcus aureus
Staphylococcus aureus · InteractorContent Providers(s): CDC/ Matthew J. Arduino, DRPH Photo Credit: Janice Haney Carr · Public domain · Wikimedia Commons ↗
Escherichia coli
Escherichia coli · Second interactorNIAID · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Terminalia mantaly, a plant indigenous to Africa”

✓ located verbatim in the source · abstract, characters 0–48 · show in text ↑
e3

“The antibacterial assays showed that the extract was effective against clinical strains of Staphylococcus aureus, Escherichia coli, and Salmonella typhi”

✓ located verbatim in the source · abstract, characters 879–1031 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Minimum inhibitory and minimum bactericidal concentrations of the leaf extract ranged from 7.8125 to 15.625 mg/mL.

Taxon
Terminalia mantalyTerminalia mantalye0
Outcome
minimum inhibitory concentrations (MICs) and minimum bactericidal concentrations (MBCs)e4
Value
7.8125 to 15.625 mg/mLe4

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Terminalia mantaly
Terminalia mantaly · Taxon阿橋 HQ · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Terminalia mantaly, a plant indigenous to Africa”

✓ located verbatim in the source · abstract, characters 0–48 · show in text ↑
e4

“with minimum inhibitory concentrations (MICs) and minimum bactericidal concentrations (MBCs) ranging from 7.8125 to 15.625 mg/mL”

✓ located verbatim in the source · abstract, characters 1033–1161 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

FTIR spectroscopy identified functional groups of alcohols, phenols, carboxylic acids, aldehydes and ketones in the leaf extract.

Taxon
Terminalia mantalyTerminalia mantalye0
Outcome
functional groups such as alcohols, phenols, carboxylic acids, aldehydes, and ketonese5

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Terminalia mantaly
Terminalia mantaly · Taxon阿橋 HQ · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Terminalia mantaly, a plant indigenous to Africa”

✓ located verbatim in the source · abstract, characters 0–48 · show in text ↑
e5

“Fourier-transform infrared (FTIR) spectroscopy identified functional groups such as alcohols, phenols, carboxylic acids, aldehydes, and ketones”

✓ located verbatim in the source · abstract, characters 1163–1306 · show in text ↑
Observationobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

The leaf extract showed significant toxicity against brine shrimp larvae.

Taxon
Terminalia mantalyTerminalia mantalye0
Interactor
brine shrimp larvaee6other
Outcome
toxicity against brine shrimp larvaee6

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Terminalia mantaly
Terminalia mantaly · Taxon阿橋 HQ · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Terminalia mantaly, a plant indigenous to Africa”

✓ located verbatim in the source · abstract, characters 0–48 · show in text ↑
e6

“the extract exhibited significant toxicity against brine shrimp larvae”

✓ located verbatim in the source · abstract, characters 1373–1443 · show in text ↑