Paper · 2026 · Sciences of Phytochemistry

In Vitro Antioxidant, Anti-Inflammatory, Anthelmintic, Anti-Microbial, FTIR and TLC Analysis of the Leaves of Memecylon amoenum

Patrick Buah; Akwasi Acheampong; Cedric Dzidzor Amengor; et al.

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Open access · cc-by

Abstract

Memecylon amoenum is traditionally employed across West Africa for treating waist pains, diarrhoea, wounds, toothache and various skin ailments. The study aimed to identify major phytoconstituents using standard phytochemical screening, chromatographic separation, and FTIR analysis and to evaluate the biological activities of the methanol and petroleum ether leaves extracts. Phytochemical investigations revealed twelve constituents in the pulverized plant material and eleven in the methanolic extract, while the petroleum ether extract contained six. In the DPPH assay, the methanol and petroleum ether extracts of M. amoenum demonstrated IC₅₀ values of 11.42 ± 0.05 and 43.42 ± 0.62 µg/mL, respectively, outperforming ascorbic acid (58.46 ± 0.8 µg/mL). Total antioxidant capacity values (gAAE/100 g) were 36.04 ± 1.43 for the hetmethanol extract and 31.35 ± 3.98 for the petroleum extract. The extracts also exhibited potent anthelmintic activity, surpassing mebendazole at all tested concentrations for example the death time at 6mg/mL are 2min 05s, 4min 16s and 8min 33s respectively for the methanol extract, pet-ether extract and mebendazole. Both extracts showed broad antimicrobial effects, with minimum inhibition concentrations, 0.0122 to 25 mg/mL, and demonstrated notable anti-inflammatory properties. Thin-layer chromatographic profiling revealed four spots in the methanolic extract and seven in the petroleum ether extract, suggesting chemical diversity between the solvent fractions. FTIR spectra confirmed the presence of functional groups consistent with the compounds detected through phytochemical screening. The results indicate that the methanol and petroleum ether extracts of M. amoenum possess significant antioxidant, anti-inflammatory, antimicrobial and anthelmintic activities, supporting their potential as therapeutic effect.

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Claims 6

Observationobservedoriginal resultmeasured

Claim · model-written summary

Pulverized Memecylon amoenum plant material contained twelve phytochemical constituents.

Taxon
Memecylon amoenumMemecylon amoenume1
Outcome
constituentse0
Value
twelvee0

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e0

“Phytochemical investigations revealed twelve constituents in the pulverized plant material”

✓ located verbatim in the source · abstract, characters 378–468 · show in text ↑
e1

“Memecylon amoenum”

✓ located verbatim in the source · abstract, characters 0–17 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The methanolic extract contained eleven constituents.

Taxon
Memecylon amoenumMemecylon amoenume1
Material
methanolic extracte0
Outcome
constituentse2
Value
elevene0

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e0

“eleven in the methanolic extract”

✓ located verbatim in the source · abstract, characters 473–505 · show in text ↑
e1

“Memecylon amoenum”

✓ located verbatim in the source · abstract, characters 0–17 · show in text ↑
e2

“Phytochemical investigations revealed twelve constituents in the pulverized plant material”

✓ located verbatim in the source · abstract, characters 378–468 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The petroleum ether extract contained six constituents.

Taxon
Memecylon amoenumMemecylon amoenume2
Material
petroleum ether extracte0
Outcome
constituentse1
Value
sixe0

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e0

“the petroleum ether extract contained six”

✓ located verbatim in the source · abstract, characters 513–554 · show in text ↑
e1

“Phytochemical investigations revealed twelve constituents in the pulverized plant material and eleven in the methanolic extract, while the petroleum ether extract contained six.”

✓ located verbatim in the source · abstract, characters 378–555 · show in text ↑
e2

“Memecylon amoenum”

✓ located verbatim in the source · abstract, characters 0–17 · show in text ↑
Method / resourceobservedoriginal resultmeasured

Claim · model-written summary

Thin-layer chromatography showed four spots for the methanolic extract.

Taxon
Memecylon amoenumMemecylon amoenume1
Material
methanolic extracte0
Outcome
spotse0
Value
foure0

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e0

“four spots in the methanolic extract”

✓ located verbatim in the source · abstract, characters 1364–1400 · show in text ↑
e1

“Memecylon amoenum”

✓ located verbatim in the source · abstract, characters 0–17 · show in text ↑
Method / resourceobservedoriginal resultmeasured

Claim · model-written summary

Thin-layer chromatography showed seven spots for the petroleum ether extract.

Taxon
Memecylon amoenumMemecylon amoenume2
Material
petroleum ether extracte0
Outcome
spotse1
Value
sevene0

Verbatim

e0

“seven in the petroleum ether extract”

✓ located verbatim in the source · abstract, characters 1405–1441 · show in text ↑
e1

“Thin-layer chromatographic profiling revealed four spots in the methanolic extract and seven in the petroleum ether extract”

✓ located verbatim in the source · abstract, characters 1318–1441 · show in text ↑
e2

“Memecylon amoenum”

✓ located verbatim in the source · abstract, characters 0–17 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

FTIR spectra confirmed functional groups consistent with the detected compounds.

Taxon
Memecylon amoenumMemecylon amoenume1
Outcome
presence of functional groupse0

Verbatim

e0

“FTIR spectra confirmed the presence of functional groups consistent with the compounds detected through phytochemical screening”

✓ located verbatim in the source · abstract, characters 1504–1631 · show in text ↑
e1

“Memecylon amoenum”

✓ located verbatim in the source · abstract, characters 0–17 · show in text ↑