Antimicrobial activity of lavender (Lavendular angustifolia) oil against fish pathogenic bacteria isolated from cultured olive flounder (Paralichthys olivaceus) in Korea


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Authors

  • S.H.M.P. Wimalasena Veterinary Medical Center and College of Veterinary Medicine, Chungbuk National University, Cheongju, 28644, Korea
  • H.N.K.S. Pathirana Veterinary Medical Center and College of Veterinary Medicine, Chungbuk National University, Cheongju, 28644, Korea
  • B.C.J. De Silva Veterinary Medical Center and College of Veterinary Medicine, Chungbuk National University, Cheongju, 28644, Korea
  • Sabrina Hossain Veterinary Medical Center and College of Veterinary Medicine, Chungbuk National University, Cheongju, 28644, Korea
  • Gang-Joon Heo Veterinary Medical Center and College of Veterinary Medicine, Chungbuk National University

Abstract

The antibacterial activity of lavender (Lavendular angustifolia) essential oil (LVO) was tested against five Gram-negative and nine Gram-positive pathogenic bacteria isolated from cultured olive flounder (Paralichthys olivaceus) in Korea. Disc diffusion assay, minimum bactericidal concentration (MBC) and minimum inhibitory concentration (MIC) tests showed that growth of both Gram-negative and Gram-positive bacteria were inhibited by LVO. The inhibition zone diameter (IZD) increased in proportion to the LVO concentration for all of the fish pathogenic bacteria and the maximum effect was found at 100% (V/V) concentration of LVO. Streptococcus iniae was most sensitive to LVO while Edwardsiella tarda was most resistant. LVO was bacteriostatic (MBC/MIC>4) for all strains of S. iniae and bactericidal (MBC/MIC=1-4) for rest of the isolates, except one isoate of E. tarda. The antibiogram pattern indicated that all the bacterial strains excluding three strains of S. iniae (S186, S530 and S131) showed resistance to one or more antibiotics. Since antibacterial activity of LVO was considerably effective against fish pathogenic bacteria, their use could be effectively used to treat bacterial infections in aquaculture.

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Submitted

2017-09-17

Published

2018-09-30

Issue

Vol. 65 No. 3 (2018)

Section

Articles

License

The copyright of the articles published in Indian Journal of Fisheries vests with the Indian Council of Agricultural Research, who has the right to enter into any agreement with any organization in India or abroad engaged in reprography, photocopying, storage and dissemination of information contained in these journals. The Council has no objection in using the material, provided the information is being utilized for academic purpose but not for commercial use. Due credit line should be given to the ICAR where information will be utilized.

How to Cite

Wimalasena, S., Pathirana, H., De Silva, B., Hossain, S., & Heo, G.-J. (2018). Antimicrobial activity of lavender (Lavendular angustifolia) oil against fish pathogenic bacteria isolated from cultured olive flounder (Paralichthys olivaceus) in Korea. Indian Journal of Fisheries, 65(3). https://epubs.icar.org.in/index.php/IJF/article/view/74436