Abstract

To study the antioxidant extracts of plant foodsMalva sylvestris L. et Rumex palustris Sm.

Author(s): F.Dahmani, H.Gnaouat, H.El Hassouni, S.El Hani, B.Bouabid, M.Sobh, A.Hammoumi2, L.A.Lrhorfi, R.Bengueddour

Our work has focused on the study of the antioxidant activity of the extracts of two food plants, Malva sylvestris L. and Rumexpalustris Sm. The development of this activity was carried out using the test of 1,1- diphenyl-di-picrylhydrazyl (DPPH). The results allowed to state that the extracts of the two species studied have significant anti-radical activity. Subsequently, we proceeded to the characterization of families of molecules involved in antioxidant activity. The results of this work reveal the richness of the two plants in polyphenols which reaches 8.62 mg EAG / 1g of dry matter for Malva sylvestris L. and 8.57 mg EAG / dry matter 1g for Rumexpalustris Sm. The content of both extracts ascorbic acid is also important, it is of the order of 3.43 mg / 1g Malva sylvestris for MS and 2.46 mg / 1g MS for Rumexpalustris. Search of ascorbic acid by HPLC confirms that Malva sylvestris includes that amount.