Polyphenolic Profile and Comparative Study on Phytochemicals and Antioxidant Activity of Extracts From all Parts of Gymnocarpos decander Forsk
Abstract
In the current study, methanolic and selective extracts from different parts of Gymnocarpos decander were screened for total phenolic, flavonoid, flavonol and condensed tannin contents. The antioxidant activity of extracts was also determined. The highest values of total contents of phenolics (156.097 ± 2.312 mg GAE/g DM), flavonoids (14.878 ± 0.275 mg CE/g DM), condensed tannins (39.388 ± 1.599 mg CE/g DM) and flavonols (6.506 ± 1.021 mg QE/g DM) were found in flowers. The most powerful antioxidant was found in the methanolic extract of flowers (32.27 ± 2.400 mg AAE/g DM). Tannins extracted from flowers showed an interesting antioxidant activity to trap the 1,1-Diphenyl- 2-picrylhydrazyl (DPPH) free radical (0.063 ± 0.000 mg/mL) and to reduce iron absorption (0.083 ± 0.004 mg/mL). The highest activity in the β-carotene test was found in the butanolic fraction of flowers (0.314 ± 0.008 mg/mL). A high performance liquid chromatography (HPLC) analysis allowed the detection of quercetin, -coumaric acid and naringenin in the ethyl acetate and butanolic fractions of flowers, and also vanillic acid in the ethyl acetate fraction of flowers.
REFERENCES:
Abu Zarin, M.H., Isha A., & Armania,N. (2016). Antioxidant, antimicrobial and cytotoxicpotential of condensed tannins from Leucaena leucocephala hybrid-Rendang. Foodscience and humain wellness, 5, 65–75. https://doi.org/10.1016/j.fshw.2016.02.001Ahmed, S., Hasan, M.M., & Mahmood, Z.A. (2016). Antiurolithiatic plants in…
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