S-(+)- and R-(-)-linalool: a comparison of the in vitro anti-Aeromonas hydrophila activity and anesthetic properties in fish



Título del documento: S-(+)- and R-(-)-linalool: a comparison of the in vitro anti-Aeromonas hydrophila activity and anesthetic properties in fish
Revista: Anais da Academia Brasileira de Ciencias
Base de datos: PERIÓDICA
Número de sistema: 000418062
ISSN: 0001-3765
Autors: 1
2
3
1
1
3
4
5
2
Institucions: 1Universidade Federal de Santa Maria, Programa de Pos-Graduacao em Farmacologia, Santa Maria, Rio Grande do Sul. Brasil
2Universidade Federal de Santa Maria, Departamento de Farmacia Industrial, Santa Maria, Rio Grande do Sul. Brasil
3Universidade Federal de Santa Maria, Departamento de Medicina Veterinaria Preventiva, Santa Maria, Rio Grande do Sul. Brasil
4Universidade Federal de Santa Maria, Departamento de Fisiologia e Farmacologia, Santa Maria, Rio Grande do Sul. Brasil
5Universidade Federal de Santa Maria, Departamento de Quimica, Santa Maria, Rio Grande do Sul. Brasil
Any:
Període: Mar
Volum: 89
Número: 1
Paginació: 203-212
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental, aplicado
Resumen en inglés Linalool is the main compound of many essential oils and occurs in two isomeric forms: S-(+)- and R-(-)-linalool. This study aimed to determine if linalool isomers have different antimicrobial and anesthetic properties in fish. For this purpose, these compounds were previously isolated from Lippia alba (Mill.)N. E. Brown and Ocimum americanum L. essential oils. Antimicrobial effects were evaluated through the microdilution test against Aeromonas hydrophila, an important fish disease etiologic agent. Induction time until sedation, anesthesia and recovery time were determined in silver catfish (Rhamdia quelen) through bath exposure (60, 180, 300 or 500 μL L-1). The results showed different biological properties for the isomers being S-(+)-linalool the only active against A. hydrophila at 3.2 mg mL-1. The sedation was induced without differences between the compounds, however R-(-)-linalool promoted faster anesthesia. There were no differences regarding the recovery time of the animals exposed to the linalool isomers. Although both S-(+)- and R-(-)-linalool can be used for sedative purposes, their use in A. hydrophila infection is inadvisable due to the high effective concentration. Considering anesthesia as the main objective, the R-(-)-linalool demonstrated clear advantages at lower concentration
Disciplines Biología,
Medicina veterinaria y zootecnia
Paraules clau: Peces,
Química farmacéutica,
Cultivo de peces,
Manejo de peces,
Anestesia,
Aceites esenciales,
Linalool,
Actividad biológica,
Aeromonas hydrophila
Keyword: Fish,
Medicinal chemistry,
Fish culture,
Fish handling,
Anesthesia,
Essential oils,
Linalool,
Biological activity,
Aeromonas hydrophyla
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