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SILVA,LENISE L.; BALCONI,LUANA S.; GRESSLER,LETÍCIA T.; GARLET,QUELEN I.; SUTILI,FERNANDO J.; VARGAS,AGUEDA P. C.; BALDISSEROTTO,BERNARDO; MOREL,ADEMIR F.; HEINZMANN,BERTA M.. |
ABSTRACT 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... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anesthesia; Aeromonas hydrophila; Chirality; Linalool; Silver catfish.. |
Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000100203 |
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SUTILI,FERNANDO J.; CUNHA,MAURO A.; ZIECH,ROSANGELA E.; KREWER,CARINA C.; ZEPPENFELD,CARLA C.; HELDWEIN,CLARISSA G.; GRESSLER,LETICIA T.; HEINZMANN,BERTA M.; VARGAS,AGUEDA C.; BALDISSEROTTO,BERNARDO. |
In vitro and in vivo activity of the Lippia alba essential oil (EO) against Aeromonas sp. was evaluated. In the in vitro assay the minimum inhibitory concentration (MIC) and a minimum bactericidal concentration (MBC) of EO for Aeromonas cells were determined using the microdilution method. Twenty five strains of Aeromonassp. isolated from infected fish obtained from local fish farms were used. MIC and MBC values were 2862 and 5998 µg mL-1 for L. alba EO and 0.5 and 1.2 µg mL-1for gentamicin, respectively. In the in vivo assay silver catfish juveniles (Rhamdia quelen) (7.50 ± 1.85 g and 10.0 ± 1.0 cm) with typical injuries associated to Aeromonas infection were divided into four treatments (in triplicate n=10): untreated fish (negative control), 10 mg L-1... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antibacterial activity; Essential oils; Fish; Gentamicin. |
Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000100095 |
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