Chemical composition and biological activities of the essential oils from Lippia alba and Lippia origanoides.

There is an increasing interest in essential oils extracted from Verbenaceae plant species as potential sources of biologically active compounds that could provide a starting point for designing novel phyto-pharmaceuticals in aquaculture. The present study was aimed to investigate the chemical composition, antioxidant activity, acute toxicity and antimicrobial effects against Vibrio parahaemolyticus of essential oils extracted from Lippia alba and L. origanoides. Approximately 23 components were identified and quantified by gas chromatography-mass spectrometry and flame ionization detection in each species? essential oil. The most predominant compounds were geranial (23.0%), limonene (17.0%) and neral (15.5%) in L. alba, and thymol (47.2%), p-cymene (16.0%) and E-caryophyllene (11.3%) in L. origanoides. The essential oils have antibacterial activity against Vibrio parahaemolyticus presenting Minimum Inhibitory Concentration (MIC) and Bactericidal Concentration (MBC) values between 156-625 µg mL-1. The essential oils also show antioxidant potential estimated by 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radical scavenging assays, presenting IC50 of 60.16 mg mL-1 and 0.22 mg mL-1 for L. alba and L. origanoides EO, respectively. Both oils were classified as toxic to Artemia salina nauplii. Therefore, these essential oils may be useful for controlling pathogenic bacteria important to the aquaculture industry.

Bibliographic Details

Main Authors:	SANTOS FILHO, L. G. A. dos, REIS, K. B. dos, SOUZA, A. S. Q., CANUTO, K. M., BRITO, E. S. de, CASTRO, K. N. de C., PEREIRA, A. M. L., DINIZ, F. M.
Other Authors:	LUIZ G. A. DOS SANTOS FILHO, Universidade Federal do Delta do Parnaíba; RENATA B. DOS REIS, Universidade Federal do Delta do Parnaíba; ANA SHEILA Q. SOUZA, Universidade Federal do Ceará; KIRLEY MARQUES CANUTO, CNPAT; EDY SOUSA DE BRITO, CNPAT; KARINA NEOOB DE CARVALHO CASTRO, CNPGL; ALITIENE MOURA LEMOS PEREIRA, CPATC; FABIO MENDONCA DINIZ, CNPC.
Format:	Artigo de periódico biblioteca
Language:	Ingles English
Published:	2023-02-10
Subjects:	Composição biológica, Biological composition, Erva Cidreira, Composição Química, Lippia Alba, Salva, Óleo Essencial, Lippia origanoides, Chemical composition,
Online Access:	http://www.alice.cnptia.embrapa.br/alice/handle/doc/1151673 https://doi.org/10.1590/0001-3765202320220359
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