Assessment of the antimicrobial activity of Lactococcus lactis subsp. cremoris NABRII66 bacterial strain isolated from rainbow trout intestine

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Mortezaei Faezeh; Royan Maryam; Babakhani Arya; SEIGHALANI RAMIN

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Journal: JOURNAL OF ANIMAL ENVIRONMENT Year:2020 | Volume:12 | Issue:1 Page(s): 245-250

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Title

Assessment of the antimicrobial activity of Lactococcus lactis subsp. cremoris NABRII66 bacterial strain isolated from rainbow trout intestine

Author(s)

Mortezaei Faezeh | Royan Maryam | Babakhani Arya | SEIGHALANI RAMIN | Issue Writer Certificate

Keywords

AquacultureQ2

Lactic Acid BacteriaQ1

Bacterial PathogensQ1

Antimicrobial ActivityQ1

Rainbow TroutQ1

Abstract

This study was conducted to survey the Antimicrobial Activity of Lactococcus lactis subsp. cremoris NABRII66 lactic acid bacterial strain against common Bacterial Pathogens in Aquaculture and human populations by in vitro experiments. L. lactis subsp. cremoris NABRII66 has been isolated from Rainbow Trout intestine. Two methods including double layer agar and microtiter plate assay were used to evaluate the inhibition activity of selected bacterial strain against two Bacterial Pathogens L. garvieae and Aeromonas salmonicida species affecting salmonids and other fish speciesand two other Bacterial Pathogens including Escherichia coli and Staphylococcus aureus, as two most common source of infection in human population. The results of double layer agar method showed the Antimicrobial Activity of L. lactis subsp. cremoris NABRII66 bacterial strain against all the tested pathogens and the highest significant growth inhibition zone was observed against A. salmonicida and S. aureus Bacterial Pathogens (p<0/05). The results of the microtiter plate assay method showed that cell-free supernatant of L. lactis subsp. cremoris NABRII66 bacterial strain could significantly inhibit the growth of A. salmonicida (p<0/05). This study showed that Lactococcus lactis subsp. cremoris NABRII66 bacterial strain isolated from Rainbow Trout intestine had Antimicrobial Activity against four Aquaculture and human's Bacterial Pathogens by producing some extracellular inhibitory compounds, which should be evaluated in future studies.

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APA: Copy

Mortezaei, Faezeh, Royan, Maryam, Babakhani, Arya, & SEIGHALANI, RAMIN. (2020). Assessment of the antimicrobial activity of Lactococcus lactis subsp. cremoris NABRII66 bacterial strain isolated from rainbow trout intestine. JOURNAL OF ANIMAL ENVIRONMENT, 12(1 ), 245-250. SID. https://sid.ir/paper/206704/en

Vancouver: Copy

Mortezaei Faezeh, Royan Maryam, Babakhani Arya, SEIGHALANI RAMIN. Assessment of the antimicrobial activity of Lactococcus lactis subsp. cremoris NABRII66 bacterial strain isolated from rainbow trout intestine. JOURNAL OF ANIMAL ENVIRONMENT[Internet]. 2020;12(1 ):245-250. Available from: https://sid.ir/paper/206704/en

IEEE: Copy

Faezeh Mortezaei, Maryam Royan, Arya Babakhani, and RAMIN SEIGHALANI, “Assessment of the antimicrobial activity of Lactococcus lactis subsp. cremoris NABRII66 bacterial strain isolated from rainbow trout intestine,” JOURNAL OF ANIMAL ENVIRONMENT, vol. 12, no. 1 , pp. 245–250, 2020, [Online]. Available: https://sid.ir/paper/206704/en

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