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Article Number - 8A3D83564145


Vol.11(17), pp. 318-330 , May 2017
DOI: 10.5897/JMPR2017.6376
ISSN: 1996-0875



Full Length Research Paper

Biological and antioxidant activity of Gunnera tinctoria (Nalca)



Pedro Zamorano
  • Pedro Zamorano
  • Graduate School, Faculty of Agricultural Science, Universidad Austral de Chile, Valdivia, Chile.
  • Google Scholar
Benjamín Rojano
  • Benjamín Rojano
  • Laboratorio Ciencia de los Alimentos, Facultad de Ciencias, Universidad Nacional de Colombia, Medellín, Colombia.
  • Google Scholar
Marcela Morales
  • Marcela Morales
  • Laboratorio Ciencia de los Alimentos, Facultad de Ciencias, Universidad Nacional de Colombia, Medellín, Colombia.
  • Google Scholar
Haroldo Magariños
  • Haroldo Magariños
  • Food Science and Technology Institute (ICYTAL), Faculty of Agricultural Sciences, Universidad Austral de Chile, Campus Isla Teja s/n, Valdivia, Chile.
  • Google Scholar
Patricio Godoy
  • Patricio Godoy
  • Clinical Microbiology Institute, Medicine Faculty, Universidad Austral de Chile, Valdivia, Chile.
  • Google Scholar
Ociel Muñoz*
  • Ociel Muñoz*
  • Food Science and Technology Institute (ICYTAL), Faculty of Agricultural Sciences, Universidad Austral de Chile, Campus Isla Teja s/n, Valdivia, Chile.
  • Google Scholar







 Received: 23 March 2017  Accepted: 26 April 2017  Published: 03 May 2017

Copyright © 2017 Author(s) retain the copyright of this article.
This article is published under the terms of the Creative Commons Attribution License 4.0


The endemic Chilean edible plant Gunnera tinctoria (Nalca) is highly appreciated in the south of Chile by the small farmers. Nevertheless, no background exists about his secondary metabolites. In the present study, in the leaf from G. tinctoria was investigated the content of bioactive compounds like coumaric acid, ascorbic acid and total phenols; the antioxidant capacity was evaluated by 3-ethylbenzothiazoline-6-suslfonic acid (ABTS), oxygen radical absorbance capacity (ORAC), ferric reducing antioxidant power), and 2,2-diphenyl-1-picrylhydrazyl (DPPH) methods reducing sugars were measured. Finally, the biological activity was evaluated against Cladophialophora and Cryptococcus laurentii. The results suggest that the most abundant constituent in the extract were catechin (1344.97 mg/100 g dry weight) and epicatechin (1429.28 mg/100g dry weight), and was confirmed and quantified by high performance liquid chromatografy (HPLC-PDA); while the ORAC methodology showed a high antioxidant capacity (192000.0±5.91 umol Trolox Eq/100 g dry weight). On the other hand, the extract had a fungicide effect against both microorganism assayed, inhibiting the growth of Cladophialophora´s mold- and the yeast Cryptococcus laurentii. This is the first report of antioxidant capacity, bioactive compounds and biological activity of G. tinctoria, and these findings suggest that an extract prepared from the Nalca leaf may be a promising source of antioxidant and bioactive compounds and as a research object by being an antifungal and therapeutic alternative in development.

Key words: Gunnera tinctoria, Nalca, antioxidant capacity, biological activity, nutraceutical.

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APA Zamorano, P., Rojano, B., Morales, M., Magariños, H., Godoy, P., & Muñoz, O. (2017). Biological and antioxidant activity of Gunnera tinctoria (Nalca). Journal of Medicinal Plants Research, 11(17), 318-330.
Chicago Pedro Zamorano, Benjam&in Rojano, Marcela Morales, Haroldo Magariños, Patricio Godoy and Ociel Muñoz. "Biological and antioxidant activity of Gunnera tinctoria (Nalca)." Journal of Medicinal Plants Research 11, no. 17 (2017): 318-330.
MLA Pedro Zamorano, et al. "Biological and antioxidant activity of Gunnera tinctoria (Nalca)." Journal of Medicinal Plants Research 11.17 (2017): 318-330.
   
DOI 10.5897/JMPR2017.6376
URL http://academicjournals.org/journal/JMPR/article-abstract/8A3D83564145

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