Characterization and Analysis of Okoume and Aiele Essential Oils from Gabon by GC-MS, Electronic Nose, and Their Antibacterial Activity Assessment
| Autor: | Guy Stephane Padzys, Eduard Llobet, Mohammed Moufid, Nezha El Bari, Soukaina Motia, Benachir Bouchikhi, Youssra Aghoutane, Linda Priscilia Omouendze |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
electronic nose
Staphylococcus aureus Microbial Sensitivity Tests medicine.disease_cause lcsh:Chemical technology 01 natural sciences Biochemistry Article Analytical Chemistry law.invention 0404 agricultural biotechnology Anti-Infective Agents law Escherichia coli Oils Volatile medicine lcsh:TP1-1185 Gabon Food science Burseraceae Electrical and Electronic Engineering Instrumentation essential oils Essential oil antimicrobial activity biology Chemistry 010401 analytical chemistry 04 agricultural and veterinary sciences biology.organism_classification Antimicrobial 040401 food science Atomic and Molecular Physics and Optics gas chromatography-mass spectrometry Anti-Bacterial Agents 0104 chemical sciences Canarium schweinfurthii okoume Gas chromatography–mass spectrometry aiele Antibacterial activity Aucoumea klaineana |
| Zdroj: | Sensors, Vol 20, Iss 6750, p 6750 (2020) Sensors Volume 20 Issue 23 Sensors (Basel, Switzerland) |
| ISSN: | 1424-8220 |
| Popis: | Essential oil resins of Aucoumea klaineana (Okoume) and Canarium schweinfurthii (Aiele) species, of the Burseraceae family, were studied to investigate their bioactive constituents and their antibacterial activities. Aiele resin had a higher yield (6.86%) of essential oil than Okoume (3.62%). Twenty-one compounds for Okoume and eighteen for Aiele essential oil were identified using a gas chromatography-mass spectrometry (Gp-C-MS) technique. The main compounds identified in Okoume essential oil were benzenemethanol, &alpha &alpha 4-trimethyl (28.85%), (+)-3-carene (3,7,7-trimethyl bicyclo[4.1.0]hept-3-ene) (17.93%), D-Limonene ((4R)-1-methyl-4-prop-1-en-2-ylcyclohexene) (19.36%). With regard to the Aiele essential oil, we identified (1R,4S)-1-methyl-4-propan-2-ylcyclohex-2-en-1-ol (26.64%), and 1-methyl-4-propan-2-ylcyclohex-2-en-1-ol (26.83%). Two strains of bacteria, Escherichia coli and Staphylococcus aureus, were used in antibacterial tests. S. aureus was found to be more sensitive to Okoume and Aiele essential oils, with a high inhibition zone ranging from 20 to 16 mm. In comparison, the inhibition zone ranged from 6 to 12 mm for E. coli. An electronic nose (e-nose) combined with pattern analysis methods such as principal component analysis (PCA), discriminant function analysis (DFA), and hierarchical cluster analysis (HCA) were used to discriminate the essential oil samples. In summary, the e-nose and GC-MS allowed the identification of bioactive compounds in the essential oil samples, which have a strong antimicrobial activity, with satisfactory results. |
| Databáze: | OpenAIRE |
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