Nossa GDL, Talero PYV, Rozo NWE

Language: Spanish
References: 23
Page: 125-132
PDF size: 135.66 Kb.

ABSTRACT

Introduction: The Comfrey (Symphytum officinalis (L.) (fam. Boraginacea), is a plant that has been used for therapeutic purposes in popular medicine. It has been used externally for bruises, joint pains and rheumatic and also its use for treatment of diseases of the digestive tract. Due to the presence of some hepatotoxic alkaloids, its use has been restricted only to the external.
Objetive: To determine the content of entire polifenoles and to study the antirust potential of the polar extracts of the leaves of Comfrey.
Methods: The extracts of the leaves of Comfrey were prepared in different solvents: methanol - water to 50 %, water and acetate of ethyl. Polyphenol content was then determined by the Folin-Ciocalteu method, and the antioxidant activity by the methods of DPPH •+ (1.1-diphenyl-2-picrylhydrazyl) and ABTS•+ (2.2'-azinobis (3- ethylbenzothiazoline-6-sulfonic acid).
Results: The three studied polar extracts showed antioxidant potential. The methanol extract showed the highest concentration of polyphenols with a value of 6.93 mg Gallic acid/g dry extract. This same extract had the highest antioxidant potential by the two methods, since most power showed radical scavenging.
Conclusions: The antioxidant potential of polar extracts of Comfrey and total polyphenol content was evident.

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