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The antibacterial and physiological effects of pure and nanoencapsulated Origanum majorana essential oil on fish infected with Aeromonas hydrophila.
Microb Pathog 2018; 124:116-121MP

Abstract

This study evaluated the antibacterial activity of Origanum majorana essential oil (EOM) and nanocapsules of this oil (NOM) in silver catfish, Rhamdia quelen, infected with Aeromonas hydrophila, and addressed their effects on silver catfish hematological and metabolic parameters. Fish were inoculated with A. hydrophila (360 μL, at a concentration of 1.5 × 109 CFU mL-1) and submitted to 1 h daily baths with EOM (0 (control), 20 or 30 μL L-1), NOM (0 (control), 5 or 10 μL L-1) or a positive control containing florfenicol (30 μL L-1) called group Maxflor® for five consecutive days. All treatments improved the survival rate of the infected fish, but we suggest the treatment of A. hydrophila infections through daily baths with 20 μL L-1 EOM or 5 μL L-1 NOM for five consecutive days as these were the lowest effective concentrations tested. Silver catfish treated with EOM and NOM had higher lymphocyte levels, indicating stimulation of the immune system in these fish. The lowest liver glucose level was found in the group treated with the lowest concentration of NOM, and the lactate values in the liver and muscle of all groups were within the normal values reported for this species. In addition, nanocapsules required much less EOM to elicit effective antibacterial treatment.

Authors+Show Affiliations

Universidade Federal de Santa Maria (UFSM), 97105-900 Santa Maria, RS, Brazil.UFSM, Santa Maria, RS, Brazil.Universidade Franciscana, Santa Maria, RS, Brazil.Center for Analysis and Research Organic, UFSM, Santa Maria, RS, Brazil.Center for Analysis and Research Organic, UFSM, Santa Maria, RS, Brazil.Center for Analysis and Research Organic, UFSM, Santa Maria, RS, Brazil.Center for Chemical, Pharmaceutical and Food Science, Universidade Federal de Pelotas, Pelotas, RS, Brazil.Department of Preventive Veterinary Medicine, UFSM, Santa Maria, RS, Brazil.Universidade Federal de Santa Maria (UFSM), 97105-900 Santa Maria, RS, Brazil; Department of Physiology and Pharmacology, UFSM, 97105-900 Santa Maria, RS, Brazil. Electronic address: bernardo@smail.ufsm.br.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

30138756

Citation

da Cunha, Jessyka Arruda, et al. "The Antibacterial and Physiological Effects of Pure and Nanoencapsulated Origanum Majorana Essential Oil On Fish Infected With Aeromonas Hydrophila." Microbial Pathogenesis, vol. 124, 2018, pp. 116-121.
da Cunha JA, de Ávila Scheeren C, Fausto VP, et al. The antibacterial and physiological effects of pure and nanoencapsulated Origanum majorana essential oil on fish infected with Aeromonas hydrophila. Microb Pathog. 2018;124:116-121.
da Cunha, J. A., de Ávila Scheeren, C., Fausto, V. P., de Melo, L. D. W., Henneman, B., Frizzo, C. P., ... Baldisserotto, B. (2018). The antibacterial and physiological effects of pure and nanoencapsulated Origanum majorana essential oil on fish infected with Aeromonas hydrophila. Microbial Pathogenesis, 124, pp. 116-121. doi:10.1016/j.micpath.2018.08.040.
da Cunha JA, et al. The Antibacterial and Physiological Effects of Pure and Nanoencapsulated Origanum Majorana Essential Oil On Fish Infected With Aeromonas Hydrophila. Microb Pathog. 2018;124:116-121. PubMed PMID: 30138756.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The antibacterial and physiological effects of pure and nanoencapsulated Origanum majorana essential oil on fish infected with Aeromonas hydrophila. AU - da Cunha,Jessyka Arruda, AU - de Ávila Scheeren,Cecília, AU - Fausto,Viviane Pedroso, AU - de Melo,Larissa Daiane Willrich, AU - Henneman,Bruno, AU - Frizzo,Clarissa Piccinin, AU - de Almeida Vaucher,Rodrigo, AU - Castagna de Vargas,Agueda, AU - Baldisserotto,Bernardo, Y1 - 2018/08/20/ PY - 2017/07/12/received PY - 2018/03/02/revised PY - 2018/08/18/accepted PY - 2018/8/24/pubmed PY - 2019/3/6/medline PY - 2018/8/24/entrez KW - Marjoram KW - Nanotechnology KW - Rhamdia quelen KW - Silver catfish SP - 116 EP - 121 JF - Microbial pathogenesis JO - Microb. Pathog. VL - 124 N2 - This study evaluated the antibacterial activity of Origanum majorana essential oil (EOM) and nanocapsules of this oil (NOM) in silver catfish, Rhamdia quelen, infected with Aeromonas hydrophila, and addressed their effects on silver catfish hematological and metabolic parameters. Fish were inoculated with A. hydrophila (360 μL, at a concentration of 1.5 × 109 CFU mL-1) and submitted to 1 h daily baths with EOM (0 (control), 20 or 30 μL L-1), NOM (0 (control), 5 or 10 μL L-1) or a positive control containing florfenicol (30 μL L-1) called group Maxflor® for five consecutive days. All treatments improved the survival rate of the infected fish, but we suggest the treatment of A. hydrophila infections through daily baths with 20 μL L-1 EOM or 5 μL L-1 NOM for five consecutive days as these were the lowest effective concentrations tested. Silver catfish treated with EOM and NOM had higher lymphocyte levels, indicating stimulation of the immune system in these fish. The lowest liver glucose level was found in the group treated with the lowest concentration of NOM, and the lactate values in the liver and muscle of all groups were within the normal values reported for this species. In addition, nanocapsules required much less EOM to elicit effective antibacterial treatment. SN - 1096-1208 UR - https://www.unboundmedicine.com/medline/citation/30138756/The_antibacterial_and_physiological_effects_of_pure_and_nanoencapsulated_Origanum_majorana_essential_oil_on_fish_infected_with_Aeromonas_hydrophila_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0882-4010(17)30837-9 DB - PRIME DP - Unbound Medicine ER -