Antibacterial and Antioxidant Compounds from Root Extracts of Gloriosa superba Linn: A Combined Experimental and Computational Study

Throughout history, medicinal plants have globally served as remedies for various ailments, and diseases. The roots of Gloriosa superba are traditionally used to treat antitumor, antimicrobial, and anti-inflammatory diseases. In this study, the roots of G. superba (320 g) were successively extracte...

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Main Authors: Iman Mustefa, Milkyas Endale, Rajalakshmanan Eswaramoorthy
Format: Article
Language:English
Published: Adama Science and Technology University 2024-02-01
Series:Ethiopian Journal of Science and Sustainable Development
Subjects:
Online Access:http://213.55.101.19/index.php/EJSSD/article/view/725
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author Iman Mustefa
Milkyas Endale
Rajalakshmanan Eswaramoorthy
author_facet Iman Mustefa
Milkyas Endale
Rajalakshmanan Eswaramoorthy
author_sort Iman Mustefa
collection DOAJ
description Throughout history, medicinal plants have globally served as remedies for various ailments, and diseases. The roots of Gloriosa superba are traditionally used to treat antitumor, antimicrobial, and anti-inflammatory diseases. In this study, the roots of G. superba (320 g) were successively extracted with n-hexane, chloroform, and methanol to afford 530 mg (0.17%), 2.89 g (0.90%), and 17.78 g (5.56%) yields, respectively. Silica gel column chromatographic separation of the combined chloroform and methanol extracts gave 4-methoxy caffeic acid heptyl ester (1), desmosterol (2), 3-hydroxymethyl phenol (3), 3-Hydroxy-5-methoxy-benzoic acid (4), sucrose (5) and rutinose (6). In vitro antibacterial study revealed promising zone of inhibition value by chloroform extract against Klebsiella pneumoniae (13±0.00 mm) compared to gentamicin (15.86±4.67 mm). Desmosterol (2), 3-hydroxymethyl phenol (3), and 3-Hydroxy-5-methoxy-benzoic acid (4) displayed promising zone of inhibition against K. pneumonia (12.33±0.58, 11.33±1.53 and 11.33±1.15 mm, respectively) at 1000 μg/mL compared to gentamycin (15.86±4.67 mm at 100 μg/mL). Promising inhibition zone values were also displayed by desmosterol (2) and 3-Hydroxy-5-methoxy-benzoic acid (4) against Pseudomonas aeruginosa (14±1.00 and 14±1.73 mm, respectively) compared to gentamycin (25±2.52 mm).Chloroform extract displayed 95.14% DPPH radical scavenging value compared to ascorbic acid (96.11%) at 200 μg/mL. Compounds 2 and 4 displayed binding affinities of -7.8 and -6.5 Kcal/mol, respectively, against PqsA protein of P. aeruginosa, compared to amoxicillin (-7.3 kcal/mol). Therefore, the in vitro antibacterial and radical scavenging activity results suggest the potential uses of the root extracts of G. superba as promising antibacterial agents and free radical scavengers.
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spelling doaj.art-5954715de2fe42b8846be88351160ee82024-02-13T07:30:01ZengAdama Science and Technology UniversityEthiopian Journal of Science and Sustainable Development1998-05312663-32052024-02-0111110.20372/ejssdastu:v11.i1.2024.725Antibacterial and Antioxidant Compounds from Root Extracts of Gloriosa superba Linn: A Combined Experimental and Computational StudyIman Mustefa0Milkyas Endale1Rajalakshmanan Eswaramoorthy2Adama Science and Technology UniversityTraditional and Modern Medicine Research and Development Directorate, Armauer Hansen Research Institute (AHRI), P.O.Box 1242, Addis Ababa, EthiopiaDepartment of Biomaterials, Saveetha Dental College and Hospital, Saveetha University, Chennai 600 077, India Throughout history, medicinal plants have globally served as remedies for various ailments, and diseases. The roots of Gloriosa superba are traditionally used to treat antitumor, antimicrobial, and anti-inflammatory diseases. In this study, the roots of G. superba (320 g) were successively extracted with n-hexane, chloroform, and methanol to afford 530 mg (0.17%), 2.89 g (0.90%), and 17.78 g (5.56%) yields, respectively. Silica gel column chromatographic separation of the combined chloroform and methanol extracts gave 4-methoxy caffeic acid heptyl ester (1), desmosterol (2), 3-hydroxymethyl phenol (3), 3-Hydroxy-5-methoxy-benzoic acid (4), sucrose (5) and rutinose (6). In vitro antibacterial study revealed promising zone of inhibition value by chloroform extract against Klebsiella pneumoniae (13±0.00 mm) compared to gentamicin (15.86±4.67 mm). Desmosterol (2), 3-hydroxymethyl phenol (3), and 3-Hydroxy-5-methoxy-benzoic acid (4) displayed promising zone of inhibition against K. pneumonia (12.33±0.58, 11.33±1.53 and 11.33±1.15 mm, respectively) at 1000 μg/mL compared to gentamycin (15.86±4.67 mm at 100 μg/mL). Promising inhibition zone values were also displayed by desmosterol (2) and 3-Hydroxy-5-methoxy-benzoic acid (4) against Pseudomonas aeruginosa (14±1.00 and 14±1.73 mm, respectively) compared to gentamycin (25±2.52 mm).Chloroform extract displayed 95.14% DPPH radical scavenging value compared to ascorbic acid (96.11%) at 200 μg/mL. Compounds 2 and 4 displayed binding affinities of -7.8 and -6.5 Kcal/mol, respectively, against PqsA protein of P. aeruginosa, compared to amoxicillin (-7.3 kcal/mol). Therefore, the in vitro antibacterial and radical scavenging activity results suggest the potential uses of the root extracts of G. superba as promising antibacterial agents and free radical scavengers. http://213.55.101.19/index.php/EJSSD/article/view/725AntitumorAntimicrobialAnthelminticAnti-inflammatoryAntioxidant activityGloriosa superba
spellingShingle Iman Mustefa
Milkyas Endale
Rajalakshmanan Eswaramoorthy
Antibacterial and Antioxidant Compounds from Root Extracts of Gloriosa superba Linn: A Combined Experimental and Computational Study
Ethiopian Journal of Science and Sustainable Development
Antitumor
Antimicrobial
Anthelmintic
Anti-inflammatory
Antioxidant activity
Gloriosa superba
title Antibacterial and Antioxidant Compounds from Root Extracts of Gloriosa superba Linn: A Combined Experimental and Computational Study
title_full Antibacterial and Antioxidant Compounds from Root Extracts of Gloriosa superba Linn: A Combined Experimental and Computational Study
title_fullStr Antibacterial and Antioxidant Compounds from Root Extracts of Gloriosa superba Linn: A Combined Experimental and Computational Study
title_full_unstemmed Antibacterial and Antioxidant Compounds from Root Extracts of Gloriosa superba Linn: A Combined Experimental and Computational Study
title_short Antibacterial and Antioxidant Compounds from Root Extracts of Gloriosa superba Linn: A Combined Experimental and Computational Study
title_sort antibacterial and antioxidant compounds from root extracts of gloriosa superba linn a combined experimental and computational study
topic Antitumor
Antimicrobial
Anthelmintic
Anti-inflammatory
Antioxidant activity
Gloriosa superba
url http://213.55.101.19/index.php/EJSSD/article/view/725
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AT rajalakshmananeswaramoorthy antibacterialandantioxidantcompoundsfromrootextractsofgloriosasuperbalinnacombinedexperimentalandcomputationalstudy