A comparative study on solvent extraction effect on the phytochemical profiling and antioxidant capacity of Zizyphus lotus L and Glycyrrhizaglabra L roots extracts from Algeria

Authors : Mohammed CHEURFA, Rachida ALLEM, Khawla ZABEL, Waffa AİCHOUNİ, Abdalbasit MARIOD

Pages : 167-172

View : 22 | Download : 13

Publication Date : 2020-12-30

Article Type : Research Paper

Abstract :The aim of this research work is the determination of total phenols, flavonoids, condensed tannin levels, and antioxidant power of methanolic and aqueous extracts of Zizyphus lotus L and Glycyrrhiza glabra L roots, using three methods insert ignore into journalissuearticles values(Test DPPH, bleaching of β-carotene and hemoglobin denaturation protection);. The higher levels of total phenols were found in methanol extracts of G. glabra and Z. lotus insert ignore into journalissuearticles values(58.94 ± 0.05 and 51.80 ± 0.02 mg GAE/ g of extract, respectively);, the methanol extract of Z. lotus was the richest in flavonoids and tannins condensed with the content of 16.00 ± 0.01 and 17.22 ± 0.1 mg CE/g of extract respectively. With the DPPH method, the water extract of Z. lotus represents significantly insert ignore into journalissuearticles values(p <0.05); the most extract active insert ignore into journalissuearticles values(04.52 ± 0.17 mg/ml);. For bleaching of β-carotene, G. glabra aqueous extract showed significantly insert ignore into journalissuearticles values(P <0.05); a higher antioxidant activity insert ignore into journalissuearticles values(71.47±01.86%);. The methanol extracts of G. glabra and Z. lotus showed inhibition of hemoglobin denaturation with values of 71.80±0.06 and 71.71±0.33%, respectively. Based on these results, it could be concluded that the G. glabra and Z. lotus roots are a rich source of natural antioxidants of high value.
Keywords : flavonoid, phenolics, Zizyphus lotus L, Glycyrrhiz aglabra, Free Radicals, Antioxidant activity,