Phytochemical and antibacterial evaluation of essential oils from Ottonia martiana miq. (Piperaceae)

Phytochemical and antibacterial evaluation of essential oils from Ottonia martiana miq. (Piperaceae)

Three essential oils extracted from leaves, fruits and roots of Ottonia martiana Miq. (Piperaceae), common species in Brazilian Rain Forest, known as "anestésia", were analyzed by GC-MS and tested in an antibacterial assay against Staphylococcus aureus (ATCC 25923), Staphylococcus epidermidis (ATCC 12228), Pseudomonas aerogenes (ATCC 27853) and Escherichia coli (ATCC 25922). Seventy-seven compounds were identified and submitted to a comparative analysis, which revealed variability on the amount of principal components of these oils (spathulenol, caryophyllene oxide, (E)-nerolidol, viridiflorol, beta-caryophyllene,deltacadinene and alloaromadendrene). Inhibition zones of bacterial growth in the bioautograms (Rfs 0.29 and 0.34) showed antimicrobial activity of essential oils against tested Gram-positive bacteria and permitted to identify some bioactive components.

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Bibliographic Details
Main Authors: Cunico,Miriam M., Lopes,André R., Côcco,Liliam C., Yamamoto,Carlos I., Plocharski,Rubia C. B., Miguel,Marilis D., G. Junior,Albino, Auer,Celso G., Miguel,Obdulio G.
Format: Digital revista
Language:English
Published: Sociedade Brasileira de Química 2007
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532007000100021
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Summary:Three essential oils extracted from leaves, fruits and roots of Ottonia martiana Miq. (Piperaceae), common species in Brazilian Rain Forest, known as "anestésia", were analyzed by GC-MS and tested in an antibacterial assay against Staphylococcus aureus (ATCC 25923), Staphylococcus epidermidis (ATCC 12228), Pseudomonas aerogenes (ATCC 27853) and Escherichia coli (ATCC 25922). Seventy-seven compounds were identified and submitted to a comparative analysis, which revealed variability on the amount of principal components of these oils (spathulenol, caryophyllene oxide, (E)-nerolidol, viridiflorol, beta-caryophyllene,deltacadinene and alloaromadendrene). Inhibition zones of bacterial growth in the bioautograms (Rfs 0.29 and 0.34) showed antimicrobial activity of essential oils against tested Gram-positive bacteria and permitted to identify some bioactive components.

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