Phytochemical Analysis and In Vitro Antioxidant and Antibacterial Activity of Different Solvent Extracts of Beilschmiedia roxburghiana Nees Stem Barks
Plants have long been considered as a basis of medicines for different indigenous cultures around the globe. They continue as a prominent source of important phytoconstituents which exhibit significant biological activities. In this study, we performed the phytochemical screening, estimation of tota...
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| Language: | English |
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Wiley
2022-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2022/6717012 |
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| author | Lekha Nath Khanal Khaga Raj Sharma Yuba Raj Pokharel Surya Kant Kalauni |
| author_facet | Lekha Nath Khanal Khaga Raj Sharma Yuba Raj Pokharel Surya Kant Kalauni |
| author_sort | Lekha Nath Khanal |
| collection | DOAJ |
| description | Plants have long been considered as a basis of medicines for different indigenous cultures around the globe. They continue as a prominent source of important phytoconstituents which exhibit significant biological activities. In this study, we performed the phytochemical screening, estimation of total phenolic and flavonoids, antioxidants, and antimicrobial activities of the stem bark of Beilschmiedia roxburghiana Nees using different solvents. The total phenolic and total flavonoid contents ranged from 106.73 ± 1.62 mg GAE/g and 99.32 ± 0.66 mg QE/g (methanol extract) to 65.59 ± 1.79 mg GAE/g and 29.98 ± 0.90 mg QE/g (n-hexane extract), respectively. The maximum 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging activity with a half-maximal inhibitory concentration (IC50) of 39.86 ± 3.69 μg/mL was observed for methanol extract followed by aqueous (IC50 = 43.55 ± 6.16 μg/mL), ethyl acetate (IC50 = 44.30 ± 5.88 μg/mL), dichloromethane (IC50 = 71.50 ± 4.70 μg/mL), and the lowest activity was observed for n-hexane extract. The disc diffusion method revealed that the ethyl acetate extract exhibited relatively higher activity against Salmonella typhi (ZOI = 13 mm), and moderate activities against Shigella sonnei, Acinetobacter baumannii, Klebsiella pneumoniae, and Staphylococcus aureus (ZOI = 12 mm). The methanol and aqueous extracts showed nearly parallel and the n-hexane and dichloromethane extracts exhibited mild antibacterial activities. The results indicated that the polarity index of the extracting solvents amplified the biological activities of the extract. The study is helpful to support the validity of the traditional application of the plant as natural medicine. |
| format | Article |
| id | doaj-art-1e871c570db347f3b1bc8a2a56cb86ae |
| institution | Kabale University |
| issn | 1537-744X |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-1e871c570db347f3b1bc8a2a56cb86ae2025-08-20T03:54:57ZengWileyThe Scientific World Journal1537-744X2022-01-01202210.1155/2022/6717012Phytochemical Analysis and In Vitro Antioxidant and Antibacterial Activity of Different Solvent Extracts of Beilschmiedia roxburghiana Nees Stem BarksLekha Nath Khanal0Khaga Raj Sharma1Yuba Raj Pokharel2Surya Kant Kalauni3Central Department of ChemistryCentral Department of ChemistryFaculty of Life Science and BiotechnologyCentral Department of ChemistryPlants have long been considered as a basis of medicines for different indigenous cultures around the globe. They continue as a prominent source of important phytoconstituents which exhibit significant biological activities. In this study, we performed the phytochemical screening, estimation of total phenolic and flavonoids, antioxidants, and antimicrobial activities of the stem bark of Beilschmiedia roxburghiana Nees using different solvents. The total phenolic and total flavonoid contents ranged from 106.73 ± 1.62 mg GAE/g and 99.32 ± 0.66 mg QE/g (methanol extract) to 65.59 ± 1.79 mg GAE/g and 29.98 ± 0.90 mg QE/g (n-hexane extract), respectively. The maximum 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging activity with a half-maximal inhibitory concentration (IC50) of 39.86 ± 3.69 μg/mL was observed for methanol extract followed by aqueous (IC50 = 43.55 ± 6.16 μg/mL), ethyl acetate (IC50 = 44.30 ± 5.88 μg/mL), dichloromethane (IC50 = 71.50 ± 4.70 μg/mL), and the lowest activity was observed for n-hexane extract. The disc diffusion method revealed that the ethyl acetate extract exhibited relatively higher activity against Salmonella typhi (ZOI = 13 mm), and moderate activities against Shigella sonnei, Acinetobacter baumannii, Klebsiella pneumoniae, and Staphylococcus aureus (ZOI = 12 mm). The methanol and aqueous extracts showed nearly parallel and the n-hexane and dichloromethane extracts exhibited mild antibacterial activities. The results indicated that the polarity index of the extracting solvents amplified the biological activities of the extract. The study is helpful to support the validity of the traditional application of the plant as natural medicine.http://dx.doi.org/10.1155/2022/6717012 |
| spellingShingle | Lekha Nath Khanal Khaga Raj Sharma Yuba Raj Pokharel Surya Kant Kalauni Phytochemical Analysis and In Vitro Antioxidant and Antibacterial Activity of Different Solvent Extracts of Beilschmiedia roxburghiana Nees Stem Barks The Scientific World Journal |
| title | Phytochemical Analysis and In Vitro Antioxidant and Antibacterial Activity of Different Solvent Extracts of Beilschmiedia roxburghiana Nees Stem Barks |
| title_full | Phytochemical Analysis and In Vitro Antioxidant and Antibacterial Activity of Different Solvent Extracts of Beilschmiedia roxburghiana Nees Stem Barks |
| title_fullStr | Phytochemical Analysis and In Vitro Antioxidant and Antibacterial Activity of Different Solvent Extracts of Beilschmiedia roxburghiana Nees Stem Barks |
| title_full_unstemmed | Phytochemical Analysis and In Vitro Antioxidant and Antibacterial Activity of Different Solvent Extracts of Beilschmiedia roxburghiana Nees Stem Barks |
| title_short | Phytochemical Analysis and In Vitro Antioxidant and Antibacterial Activity of Different Solvent Extracts of Beilschmiedia roxburghiana Nees Stem Barks |
| title_sort | phytochemical analysis and in vitro antioxidant and antibacterial activity of different solvent extracts of beilschmiedia roxburghiana nees stem barks |
| url | http://dx.doi.org/10.1155/2022/6717012 |
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