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J Herbmed Pharmacol. 2023;12(1): 100-108.
doi: 10.34172/jhp.2023.09

Scopus ID: 85147780407
  Abstract View: 753
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Original Article

Identification of bioactive constituents of chloroform fraction from Annona muricata leaf, its antioxidant activity and inhibitory potential against carbohydrate-hydrolyzing α-amylase and α-glucosidase activities linked to type II diabetes mellitus: In vitro study

Oluwaseun Ruth Olasehinde ORCID logo, Olakunle Bamikole Afolabi* ORCID logo

1 Department of Chemical Sciences, Phytomedicine and Nutraceutics Unit, Biochemistry Programme, Afe Babalola University, P.M.B 5454, Ado-Ekiti, Ekiti State, Nigeria
*Corresponding Author: Afolabi Olakunle Bamikole, Email: afolabiob@abuad.edu.ng

Abstract

Introduction: Secondary metabolites from plants have been found to play an important role in the treatment of diabetes mellitus (DM) and its complications. Therefore, the purpose of this study was to identify the chemical components of Annona muricata leaf chloroform fraction (CFAm) and its in vitro antioxidant properties, as well as inhibitory activity against α-amylase and α-glucosidase enzymatic activities.

Methods: Gas chromatography–mass spectrometry (GC-MS) technique was engaged in the identification of phytochemical constituents. Antioxidant activities such as DPPH free radical scavenging ability, reducing power capacity, hydroxyl radical scavenging ability, singlet oxygen scavenging capacity, as well as α-amylase and α-glucosidase inhibition were carried out using standard in vitro methods.

Results: GC-MS analysis of CFAm revealed the presence of 23 phytochemicals, out of which 5 compounds had the highest % compositions (i.e., octadecanoic acid (20.35%), 2-propanone, 1-(4-hydroxy-3-methoxyphenyl) (12.04%), isocomene (22.60%), 9, 12, 15 octadecatrienoic acid, methyl ester (Z,Z,Z) (28. 98%), and quercetin, 5TMS derivative (18.28%)). Also, CFAm demonstrated a significant (P<0.05) inhibition against DPPH (IC50= 26.33±1.39 mg/mL), with OH free radical scavenging capacity (65.46 ± 1.39 mg/100 g), singlet oxygen scavenging capacity (55.24 ± 1.22 mg/100 g), and showed ferric reducing power (84.52 ± 2.84 mg/100 g). Also, CFAm exhibited a significant (P<0.05) inhibition against α-glucosidase (IC50= 71.06 ±1.45 mg/ mL) and α-amylase (IC50= 73.88±1.58 mg/mL) in a concentration-dependent manners.

Conclusion: The remarkable properties demonstrated by CFAm, which are essential for the management of DM, could probably be credited to the presence of the various identified phytonutrients.


Implication for health policy/practice/research/medical education:

Chloroform fraction from Annona muricata leaf revealed some important phytochemical constituents and demonstrated significant antidiabetic potentials that might be useful as an alternative therapy in the management of diabetes mellitus.

Please cite this paper as: Olasehinde OR, Afolabi OB. Identification of bioactive constituents of chloroform fraction from Annona muricata leaf, its antioxidant activity and inhibitory potential against carbohydrate-hydrolyzing α-amylase and α-glucosidase activities linked to type II diabetes mellitus: In vitro study. J Herbmed Pharmacol. 2023;12(1):100-108. doi: 10.34172/jhp.2023.09.

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Submitted: 10 Aug 2022
Revision: 03 Nov 2022
Accepted: 06 Nov 2022
ePublished: 31 Dec 2022
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