Journal of
Medicinal Plants Research

  • Abbreviation: J. Med. Plants Res.
  • Language: English
  • ISSN: 1996-0875
  • DOI: 10.5897/JMPR
  • Start Year: 2007
  • Published Articles: 3693

Full Length Research Paper

Chemical Composition antimicrobial and free radical scavenging activity of essential oil from leaves of Renealmia thyrsoidea (Ruiz &Pav.) Poepp. & Endl.

Paco F. Noriega
  • Paco F. Noriega
  • Centro de Investigación y Valoración de la Biodiversidad, Universidad Politécnica Salesiana, Quito-Ecuador.
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Erika A. Paredes
  • Erika A. Paredes
  • Centro de Investigación y Valoración de la Biodiversidad, Universidad Politécnica Salesiana, Quito-Ecuador.
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Tatiana D. Mosquera
  • Tatiana D. Mosquera
  • Centro de Investigación y Valoración de la Biodiversidad, Universidad Politécnica Salesiana, Quito-Ecuador.
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Edison E. Diaz
  • Edison E. Diaz
  • Symrise AG. Mühlenfeldstraße 1 37603 Holzminden, Germany.
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Angelika Lueckhoff
  • Angelika Lueckhoff
  • Symrise AG. Mühlenfeldstraße 1 37603 Holzminden, Germany.
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Jessica E. Basantes
  • Jessica E. Basantes
  • Centro de Investigación y Valoración de la Biodiversidad, Universidad Politécnica Salesiana, Quito-Ecuador.
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Andrea L. Trujillo
  • Andrea L. Trujillo
  • Centro de Investigación y Valoración de la Biodiversidad, Universidad Politécnica Salesiana, Quito-Ecuador.
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  •  Received: 02 August 2016
  •  Accepted: 25 August 2016
  •  Published: 03 September 2016

Abstract

Renealmia thryrsoidea  (Ruiz & Pav.)  Poepp. & Endl is a plant used by the Amazonian indigenous people of Ecuador for its various medicinal properties. Its leaves exhibit a remarkable aroma with a hint of spiciness. The essential oil extracted from its leaves was analyzed by GM/MS, using two systems with columns of different polarity, in both was confirmed  the presence of terpinolene (26.32%), α-felandrene (17.16%), γ-terpinene (6.55%), β-pinene (5.97%) and p-cymol (4.70%). Free radical scavenging activity was analyzed through 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) spectrophotometric methods ; by applying ABTS method , the activity was comparable to that of the essential oil of Thymus vulgaris. The trials of antimicrobial activity show a strong inhibition against  Gram negative bacteria as  Escherichia coli and Pseudomonas aeruginosa. 
 
Key words: Renealmia  thryrsoidea, essential oil, DPPH, ABTS, minimum inhibitory concentration (MIC).