Assessment of Antioxidant Potential and phytochemical screening of Phenolic Compounds of Gleditsia triacanthos L Pods

• Published in: International Journal Of Medical Science And Clinical Invention Vol. 5; no. 3; pp. 3648 - 3655
• Main Authors: Imène, Saidi, Hassiba, Mahdjoub Bessam, Abbassia, Benchaachoua
• Format: Journal Article
• Language: English
• Published: 20.03.2018
• ISSN: 2454-9576; 2348-991X; 2348-991X
• DOI: 10.18535/ijmsci/v5i3.17

Objective: The present study aims at the phytochemical screening, the quantification of phenolic compounds of Gleditsia triacanthos L pods (Family Leguminosae) and the assessment of their antioxidant potential by in vitro assays. Subjects and Methods: The pods were extracted with 70% methanol and further partitioned with petroleum ether, chloroform, ethyl acetate, and n-butanol. The residual aqueous fraction has been also recovered. Colorimetric methods using Folin-Ciocalteu reagent, aluminum chloride and Folin-Denis were carried out to estimate total polyphenols, flavonoids and condensed tannins content of extracts. 2,2-diphenyl-1-picrylhydrazyl (DPPH) and total antioxidant capacity (TAC) were used to determine in vitro antioxidant activity. Results: In vitro phytochemical screening for all the extracts was tested and shown positive result for flavonoids, tannins, cardiac glycosides, sterols and terpenes, saponins and alkaloids. However, all the extracts were free of anthraquinones. The strongest activity against radical scavenging of DPPH was found in the ethyl acetate fraction (IC50= 16,288 ± 0,299 µg/ml) which contains highest amounts of flavonoids (25.160 ± 0.016 mg CE/g), whereas the chloroform fraction showed an important total antioxidant capacity (750,584 ± 129,793 mg AAE/g) with the highest amount of total polyphenols (131.667 ± 2.055 mg GAE/g). When compared to the other fractions, the aqueous fraction presented the lowest antioxidant activity for the two methods. Conclusion: These data suggest that the pods of Gleditsia triacanthos L can be a good natural source of antioxidants that can be beneficial for food and human health.