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Antioxidant Activity, Total Phenolic, Flavonoid and Tannin Contents of Callus and Seeds Extracts of Fenugreek (Trigonella foenum-graecum L.)

Journal: International Journal of Science and Research (IJSR) (Vol.3, No. 10)

Publication Date:

Authors : ; ;

Page : 1268-1272

Keywords : Trigonella foenum-graecum L; Flavonoids and phenolic compounds; Antioxidant activity; Callus;

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The research aimed to study antioxidant activity, total phenolic, flavonoid and tannin contents of methanolic extracts of callus and seeds and petroleum ether extract of seeds of fenugreek (Traigonella foenum-graecum). Callus was induced from hypocotyls and cotyledons explants in MS medium supplemented with combination of 2 mg/l of different auxin (2, 4-D or NAA) + 0.5 mg/l Kinetin. Free radical scavenging activity was evaluated by DPPH method. The highest scavenging activity was obtained from cotyledons derived callus (91.50.16 %) followed by hypocotyls derived callus (85.460.29 %) and methanolic extract of seeds (80.530.01 %). Petroleum ether extract of seeds demonstrated weak antioxidant activity with inhibition percentage 24.560.12 %. Significant differences (phypocotyls derived callus (0.7159mg/g) greater thancotyledons derived callus (0.4914mg/g) greater than ascorbic acid (0.1874mg/g). A lower value of IC50 indicates a higher antioxidant activity. Highest phenolic content were observed in callus of cotyledons (412.087 mg/l), compared to callus of hypocotyls (211.1937 mg/l) and methanolic extract of seeds (124.84 mg/l) calculated as mg/l gallic acid equivalent of phenols. Methanolic extract of seeds showed highest level of flavonoid content (424.951 mg/l), compared to callus of cotyledons (217.285 mg/l) and callus of hypocotyls (95.92 mg/l) calculated as mg/l quercetin equivalent of flavonoids. Tannins content were detected only in methanolic extract of seeds (116.259 mg/l calculated as tannic acid equivalent of tannins).

Last modified: 2021-06-30 21:10:56