In Vitro Experimental Assessment of Ethanolic Extract of Moringa oleifera Leaves as an α-Amylase and α-Lipase Inhibitor

Background and Objectives. Moringa oleifera has been scientifically reported to have effects on diabetes and obesity. An explanatory mechanism on how the plant exerts its enzyme inhibitory activities are yet to be detailed. This study was aimed at carrying out an in vitro assessment of ethanolic ext...

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Main Authors: Adebanke Ogundipe, Babatunde Adetuyi, Franklyn Iheagwam, Keleko Adefoyeke, Joseph Olugbuyiro, Oluseyi Ogunlana, Olubanke Ogunlana
Format: Article
Language:English
Published: Hindawi Limited 2022-01-01
Series:Biochemistry Research International
Online Access:http://dx.doi.org/10.1155/2022/4613109
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author Adebanke Ogundipe
Babatunde Adetuyi
Franklyn Iheagwam
Keleko Adefoyeke
Joseph Olugbuyiro
Oluseyi Ogunlana
Olubanke Ogunlana
author_facet Adebanke Ogundipe
Babatunde Adetuyi
Franklyn Iheagwam
Keleko Adefoyeke
Joseph Olugbuyiro
Oluseyi Ogunlana
Olubanke Ogunlana
author_sort Adebanke Ogundipe
collection DOAJ
description Background and Objectives. Moringa oleifera has been scientifically reported to have effects on diabetes and obesity. An explanatory mechanism on how the plant exerts its enzyme inhibitory activities are yet to be detailed. This study was aimed at carrying out an in vitro assessment of ethanolic extracts (AEEs) of M. oleifera leaves for their antioxidant, antidiabetic, and antiobesity activities. Methods. Phytochemical screening, antioxidant activity, α-amylase, and α-lipase inhibitory assessment were carried out on Moringa oleifera extract. Results. The result of the phytochemical screening revealed the presence of total phenolic, flavonoid, tannin, and alkaloid contents of values 0.070 ± 0.005 mg gallic acid equivalent/g, 0.180 ± 0.020 mg rutin equivalent/g, 0.042 ± 0.001 mg tannic equivalent/g, and 12.17 ± 0.001%, respectively, while the total protein analysis was 0.475 ± 0.001 mg bovine serum albumin equivalent/g. Ferric reducing antioxidant power (FRAP) and total antioxidant capacity (TAC) values were 0.534 ± 0.001 mg gallic acid equivalent/g and 0.022 ± 0.00008 mg rutin equivalent/g, respectively. Diphenyl-2-picrylhydrazyl (DPPH), ABTS (2,2′-azino-bis (ethylbenzothiazoline-6-sulfonic acid)), and nitric oxide (NO) assays showed the extract to have a strong free radical scavenging activity. The 50% inhibitory concentration (IC50) values of the lipase and amylase activities of the extract are 1.0877 mg/mL and 0.1802 mg/mL, respectively. Conclusion. However, α-lipase and α-amylase inhibiting activity of M. oleifera could be related to the phytochemicals in the extract. This research validates the ethnobotanical use of M. oleifera leaves as an effective plant-based therapeutic agent for diabetes and obesity.
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spelling doaj.art-0186f3c8e608452fa8e9ae3cd1953e3d2023-01-09T01:29:56ZengHindawi LimitedBiochemistry Research International2090-22552022-01-01202210.1155/2022/4613109In Vitro Experimental Assessment of Ethanolic Extract of Moringa oleifera Leaves as an α-Amylase and α-Lipase InhibitorAdebanke Ogundipe0Babatunde Adetuyi1Franklyn Iheagwam2Keleko Adefoyeke3Joseph Olugbuyiro4Oluseyi Ogunlana5Olubanke Ogunlana6Department of BiochemistryDepartment of Natural SciencesDepartment of BiochemistryLeady Pharma Industries LimitedDepartment of Industrial ChemistryDepartment of Biological SciencesDepartment of BiochemistryBackground and Objectives. Moringa oleifera has been scientifically reported to have effects on diabetes and obesity. An explanatory mechanism on how the plant exerts its enzyme inhibitory activities are yet to be detailed. This study was aimed at carrying out an in vitro assessment of ethanolic extracts (AEEs) of M. oleifera leaves for their antioxidant, antidiabetic, and antiobesity activities. Methods. Phytochemical screening, antioxidant activity, α-amylase, and α-lipase inhibitory assessment were carried out on Moringa oleifera extract. Results. The result of the phytochemical screening revealed the presence of total phenolic, flavonoid, tannin, and alkaloid contents of values 0.070 ± 0.005 mg gallic acid equivalent/g, 0.180 ± 0.020 mg rutin equivalent/g, 0.042 ± 0.001 mg tannic equivalent/g, and 12.17 ± 0.001%, respectively, while the total protein analysis was 0.475 ± 0.001 mg bovine serum albumin equivalent/g. Ferric reducing antioxidant power (FRAP) and total antioxidant capacity (TAC) values were 0.534 ± 0.001 mg gallic acid equivalent/g and 0.022 ± 0.00008 mg rutin equivalent/g, respectively. Diphenyl-2-picrylhydrazyl (DPPH), ABTS (2,2′-azino-bis (ethylbenzothiazoline-6-sulfonic acid)), and nitric oxide (NO) assays showed the extract to have a strong free radical scavenging activity. The 50% inhibitory concentration (IC50) values of the lipase and amylase activities of the extract are 1.0877 mg/mL and 0.1802 mg/mL, respectively. Conclusion. However, α-lipase and α-amylase inhibiting activity of M. oleifera could be related to the phytochemicals in the extract. This research validates the ethnobotanical use of M. oleifera leaves as an effective plant-based therapeutic agent for diabetes and obesity.http://dx.doi.org/10.1155/2022/4613109
spellingShingle Adebanke Ogundipe
Babatunde Adetuyi
Franklyn Iheagwam
Keleko Adefoyeke
Joseph Olugbuyiro
Oluseyi Ogunlana
Olubanke Ogunlana
In Vitro Experimental Assessment of Ethanolic Extract of Moringa oleifera Leaves as an α-Amylase and α-Lipase Inhibitor
Biochemistry Research International
title In Vitro Experimental Assessment of Ethanolic Extract of Moringa oleifera Leaves as an α-Amylase and α-Lipase Inhibitor
title_full In Vitro Experimental Assessment of Ethanolic Extract of Moringa oleifera Leaves as an α-Amylase and α-Lipase Inhibitor
title_fullStr In Vitro Experimental Assessment of Ethanolic Extract of Moringa oleifera Leaves as an α-Amylase and α-Lipase Inhibitor
title_full_unstemmed In Vitro Experimental Assessment of Ethanolic Extract of Moringa oleifera Leaves as an α-Amylase and α-Lipase Inhibitor
title_short In Vitro Experimental Assessment of Ethanolic Extract of Moringa oleifera Leaves as an α-Amylase and α-Lipase Inhibitor
title_sort in vitro experimental assessment of ethanolic extract of moringa oleifera leaves as an α amylase and α lipase inhibitor
url http://dx.doi.org/10.1155/2022/4613109
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