Chemical Composition and Biological Activity of Five Essential Oils from the Ecuadorian Amazon Rain Forest

Autor: Paco Noriega, Stefano Manfredini, Gianni Sacchetti, Edwin Ankuash, Alessandra Guerrini, Alessandro Grandini
Jazyk: angličtina
Rok vydání: 2019
Předmět:
DPPH
Pharmaceutical Science
antioxidant activity
Amazonian essential oils
Antimicrobial activity
Antioxidant activity
Biological activity
GC-MS
01 natural sciences
Analytical Chemistry
law.invention
chemistry.chemical_compound
law
Drug Discovery
LS8_4
Bicyclic Monoterpenes
beta-Pinene
ABTS
biology
Traditional medicine
Anti-Bacterial Agents
Chemistry (miscellaneous)
Molecular Medicine
Sesquiterpenes
Rainforest
biological activity
Cyclohexane Monoterpenes
Microbial Sensitivity Tests
Gram-Positive Bacteria
Article
lcsh:QD241-441
Bridged Bicyclo Compounds
lcsh:Organic chemistry
Zingiberaceae
Siparuna
Cyclohexenes
Gram-Negative Bacteria
Oils
Volatile
Physical and Theoretical Chemistry
LS9_5
Essential oil
alpha-Pinene
Piper
antimicrobial activity
010405 organic chemistry
Organic Chemistry
Ambientale
Hedychium coronarium
biology.organism_classification
0104 chemical sciences
010404 medicinal & biomolecular chemistry
chemistry
Monoterpenes
Zdroj: Molecules, Vol 24, Iss 8, p 1637 (2019)
Molecules
Volume 24
Issue 8
ISSN: 1420-3049
Popis: The chemical composition and biological activity of essential oils isolated from the leaves of Siparuna aspera, Siparuna macrotepala, Piper leticianum, Piper augustum and the rhizome of Hedychium coronarium were evaluated. These species are used medicinally in different ways by the Amazonian communities that live near the Kutukú
mountain range. Chemical studies revealed that the main components for the two Siparuna species were germacrene D, bicyclogermacrene, &alpha
pinene, &delta
cadinene, &delta
elemene, &alpha
copaene and &beta
caryophyllene
for the two Piper species &beta
caryophyllene, germacrene D, &alpha
(E,E)-farnesene, &beta
elemene, bicyclogermacrene, &delta
cadinene and for H. coronarium 1,8-cineole, &beta
pinene, &alpha
pinene and &alpha
terpineol. The antioxidant activity of all essential oils was evaluated by 1,1-diphenyl-2-picrylhydrazyl (DPPH), 2,2&prime
azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS), photochemiluminescence (PCL) quantitative assays, and DPPH and ABTS bioautographic profiles, with different results for each of them. Antimicrobial activity studies were carried out on three yeasts, six Gram positive and four Gram negative bacteria, by means of the disc diffusion method. The essential oil of H. coronarium showed the most relevant results on L. grayi, K. oxytoca and S. mutans, P. augustum and P. leticianum on S. mutans. An antibacterial bioautographic test for H. coronarium was also carried out and highlighted the potential activity of terpinen-4-ol and 1,8-cineole.
Databáze: OpenAIRE
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