A Study on the Antioxidant Activity of Methanolic Extracts from Leaf, Stem and Flower Parts of Astragalus ovatus DC.
Abstract
The present study investigated the antioxidant activity of flower, stem and leaf extracts of Astragalus ovatus DC. plant. Total phenolic and flavonoid contents were determined in methanolic extracts of Astragalus ovatus DC flower, stem and leaves. Leaf of Astragalus ovatus DC. exhibited the highest activity of those parts tested. Total phenolic content and total flavonoid content for this part of plant were determined as 6.88 mg GAE/g and 2.80 mg QUE/g, respectively. FRAP value was found as 30.50 μmol FeSO4.7H2O/g. This is the first study to report antioxidant activity of flower, stem and leaf extracts of Astragalus ovatus DC.
Keywords
Astragalus ovatus DC, Antioxidant Activity, Total Phenolic, Flavonoid
References
- Albayrak, S. & Kaya, O. (2018). Antioxidant and antimicrobial activities of four Astragalus species growing wild in Turkey. Turkish Journal of Biochemistry, 43(4), 425-434.
- Albayrak, S. & Kaya, O. (2019). Antioxidant, Antimicrobial and Cytotoxic Activities of Endemic Astragalus argaeus Boiss. from Turkey. Hacettepe Journal of Biology and Chemistry, 47(1), 87-97.
- Allam, R. M., Selim, D. A., Ghoneim, A. I., Radwan, M. M., Nofal, S. M., Khalifa, A. E., ... & El-Sebakhy, N. A. (2013). Hepatoprotective effects of Astragalus kahiricus root extract against ethanol-induced liver apoptosis in rats. Chinese Journal of Natural Medicines, 11(4), 354-61.
- Benzie, I. F. & Szeto, Y. T. (1999). Total antioxidant capacity of teas by the ferric reducing/antioxidant power assay. Journal of Agricultural and Food Chemistry, 47(2), 633-636.
- Bratkov, V. M., Shkondrov, A. M., Zdraveva, P. K. & Krasteva, I. N. (2016). Flavonoids from the genus Astragalus: phytochemistry and biological activity. Pharmacognosy Reviews, 10(19), 11.
- Chang, C. C., Yang, M. H., Wen, H. M. & Chern, J. C. (2002). Estimation of total flavonoid content in propolis by two complementary colorimetric methods. Journal of Food and Drug Analysis, 10(3).
- Chen, J., Li, Y., Yang, L. Q., Li, Y. Z., Nan, Z. B. & Gao, K. (2012). Biological activities of flavonoids from pathogenic-infected Astragalus adsurgens. Food Chemistry, 131(2), 546-551.
- Ekici, M. (2010). Astragalus L. (Fabaceae) cinsinin Hypoglottidei DC. ve Incani DC. ve Dissitiflori DC. Seleksiyonlarında Yer Alan Tükenmiş (Ex) Ve Yetersiz Veri (DD) Basamağında Bulunan Taksonlar ile İlgili Veriler. SAÜ Fen Edebiyat Dergisi, 31-42.
- Ekim, T., Koyuncu, M., Vural, M., Duman, H., Aytaç, Z. & Adıgüzel, N. (2000). Red data book of Turkish plants (Pteridophyta and Spermatophyta). Barışcan Ofset, Ankara, 246.
- Hardion, L., Baumel, A., Dumas, P. J., Duong, N., Affre, L. & Tatoni, T. (2010). Phylogenetic relationships and infrageneric classification of Astragalus tragacantha L.(Fabaceae), inferred from nuclear ribosomal DNA Internal transcribed spacers data (nrDNA ITS). Ecologia Mediterranea, 36(1), 99-106.