Author, as appears in the article.: Aghoutane Y; Moufid M; Motia S; Padzys GS; Omouendze LP; Llobet E; Bouchikhi B; Bari NE

Department: Enginyeria Electrònica, Elèctrica i Automàtica

e-ISSN: 1424-8220

URV's Author/s: Llobet Valero, Eduard

Keywords: Okoume Gas chromatography-mass spectrometry Essential oils Electronic nose Antimicrobial activity Aiele

Abstract: © 2020 by the authors. Licensee MDPI, Basel, Switzerland. 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, α, α,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.

Thematic Areas: Zootecnia / recursos pesqueiros Química Medicine (miscellaneous) Medicina veterinaria Medicina iii Medicina ii Medicina i Materiais Matemática / probabilidade e estatística Linguística e literatura Letras / linguística Interdisciplinar Instruments & instrumentation Instrumentation Information systems Geografía Geociências Farmacia Engineering, electrical & electronic Engenharias iv Engenharias iii Engenharias ii Engenharias i Electrochemistry Electrical and electronic engineering Educação física Ciências biológicas iii Ciências biológicas ii Ciências biológicas i Ciências ambientais Ciências agrárias i Ciência de alimentos Ciência da computação Chemistry, analytical Biotecnología Biodiversidade Biochemistry Atomic and molecular physics, and optics Astronomia / física Arquitetura, urbanismo e design Analytical chemistry

licence for use: https://creativecommons.org/licenses/by/3.0/es/

Author's mail: eduard.llobet@urv.cat

Author identifier: 0000-0001-6164-4342

Record's date: 2023-02-19

Papper version: info:eu-repo/semantics/publishedVersion

Link to the original source: https://www.mdpi.com/1424-8220/20/23/6750

Licence document URL: http://repositori.urv.cat/ca/proteccio-de-dades/

Papper original source: Sensors. 20 (23): 1-17

APA: Aghoutane Y; Moufid M; Motia S; Padzys GS; Omouendze LP; Llobet E; Bouchikhi B; Bari NE (2020). Characterization and analysis of Okoume and aiele essential oils from Gabon by gc-ms, electronic nose, and their antibacterial activity assessment. Sensors, 20(23), 1-17. DOI: 10.3390/s20236750

Article's DOI: 10.3390/s20236750

Entity: Universitat Rovira i Virgili

Journal publication year: 2020

Publication Type: Journal Publications