15–Lipoxygenase inhibition of Commelina benghalensis, Tradescantia fluminensis, Tradescantia zebrina
Objective: To evaluate the 15-lipoxygenase inhibitory activity of the methanol leaf extracts of Commelina benghalensis, Tradescantia fluminensis (T. fluminensis) and Tradescantia zebrina. Method: The inhibitory activity was evaluated using a spectrophotometric assay by observing the increase in abso...
| Published in: | Asian Pacific Journal of Tropical Biomedicine |
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| Main Authors: | , |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Wolters Kluwer Medknow Publications
2014
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| Subjects: | |
| Online Access: | https://doi.org/10.1016/S2221-1691(14)60229-X https://doaj.org/article/7b1939a50b304ea88a9b7ead7f0ae82d |
| Summary: | Objective: To evaluate the 15-lipoxygenase inhibitory activity of the methanol leaf extracts of Commelina benghalensis, Tradescantia fluminensis (T. fluminensis) and Tradescantia zebrina. Method: The inhibitory activity was evaluated using a spectrophotometric assay by observing the increase in absorbance at 234 nm due to the formation of the product 13-hydroperoxyoctadecadienoic acid. The extracts were also tested for the presence of terpenoids, saponins, tannins, flavonoids, steroids, phenolic compounds, alkaloids and cardiac glycosides. Results: All the extracts inhibited the action of 15-lipoxygenase at a concentration of 0.2 μg/mL. T. fluminensis and Tradescantia zebrina exhibited higher than 50% inhibition with T. fluminensis at 87.2%. T. fluminensis was partitioned with ethyl acetate and hexane and their IC50 values were determined at 8.72 μg/mL and 98.04 μg/mL, respectively. Conclusions: T. fluminensis is a potentially good source of 15-lipoxygenase inhibitors. |
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