Evaluation of phenol, flavonoid content and antioxidant activity of curcumin ethanol extracte

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Horri Fatemeh; Rajaei Litkohi Hajar; RAHAIEE SOMAYEH; Govahi Mostafa

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Seminar Paper

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Seminar: INTERNATIONAL CONFERENCE ON MODERN TECHNOLOGY IN SCIENCES
Year:2023 | Issue:3

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Title

Evaluation of phenol, flavonoid content and antioxidant activity of curcumin ethanol extracte

Author(s)

Horri Fatemeh | Rajaei Litkohi Hajar | RAHAIEE SOMAYEH | Govahi Mostafa

Keywords

Turmeric extract

antioxidant activity (DPPH)

phenolic compounds

curcumin

Abstract

Turmeric, with the scientific name Curcuma longa L., is a herbaceous and perennial plant from the Zingiberaceae family that grows in tropical areas. Turmeric has secondary phenolic metabolites and antioxidant and anti-inflammatory properties. The aim of this study is to measure the presence of curcuminoid structures and the antioxidant properties of Turmeric extract. For this purpose, curcuminoid structure of Turmeric extract was evaluated using phytochemical tests (total phenol and total flavonoid) to determine secondary metabolites, determination of antioxidant inhibitory activity (DPPH) and visible-ultraviolet spectroscopy (UV-Vis) analysis. Examining the results obtained from the phytochemical test shows the presence of phenolic compounds (3. 81 ±,0. 36 mg of gallic acid) and flavonoid compounds (92. 75 ±,3. 62 mg of quercetin) and the UV findings of the presence of curcuminoid in the ethanolic extract. confirms The results of DPPH analysis show the dependence of the free radical inhibitory property on different concentrations of Turmeric extract, with the increase in concentration, the amount of DPPH also increases, so that the highest inhibitory rate of 56. 99% was observed at a concentration of 200 μ, g/ml of the extract. The results of the present study showed that the ethanol extract of turmeric has curcuminoid compounds and the structure of this compound is preserved during the synthesis method, and the ethanol extraction method is a suitable method for preparing curcumin from turmeric.

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