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A. C. Billaud and B. Austin, J. However, other strains did not show the resistance to both antibiotics. The optical density (OD) of each bacteria at 600 nm was then adjusted to 0.30 ± 0.02 and the bacteria were incubated at 37°C without agitation. 10, 3522–3528 (1994). Lee, J. S., Lee, K. C., Ahn, J. S., Mheen, T. I., Pyun, Y. R., and Park, Y. H. (2002). Food Biosci.

Technol. As such, the aim of this study was the identification of antagonistic bacteria potentially deployable as bio-control agents against X. fastidiosa. doi: 10.1016/j.ijfoodmicro.2011.03.014, Bernet, M. F., Brassart, D., Neeser, J. R., and Servin, A. L. (1994). N. S. Egorov, Fundamentals of the Theory of Antibiotics: A Manual [in Russian], Moscow (2004). Appl.

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the evaluation of the antagonistic activity of: i) endophytic bacteria isolated from olive trees located in an infected area but showing mild or no symptoms, and ii) Bacillus strains, as they are already known as bio-control agents.

Seventy-eight bacteria belonging to the genus Bacillus, isolated from salty soils in Tunisia, were assessed for their antagonistic activity against Ascochyta rabiei, the causal agent of Ascochyta blight of chickpea. Previous reports demonstrated that Weissella strains showed good survival rates under a low pH condition (Lee et al., 2012; Anandharaj et al., 2015).

Microbiol., 26, No.

In this study, we demonstrated the antagonistic activities together with probiotic potential of the LABs derived from a non-dairy fermented food, kimchi. 52, 1257–1261. J. Subsequently, viable counts were determined by plating a serial dilution on MRS agar plates.

However, further safety parameters are also to be studied, before establishing the probiotic candidates which are eligible for the development of probiotic products. FIGURE 2.

L. curvatus KCCM 43119, W. cibaria KCTC 3746, and W. koreensis KCCM 41517 remained negligibly unaffected in the simulated gastric conditions, while Ln. Antibiotic susceptibility of LAB strains is important prerequisite for the probiotics. Taking also into account that two of these B. velezensis strains (namely strains D747 and QST713) are already registered and commercially available as bio-control agents, our results pave the way for further studies aimed at the development of a sustainable bio-control strategy of the OQDS. (a-d and f-i).

Microbiol. The minimum inhibitory concentration of IP6 varied from 0.488 to 0.97 mg/ml for the Gram-positive bacteria that were tested, and was 0.244 mg/ml for the Gram-negative bacteria. Therefore, we tested the sensitivity of the panel of foodborne pathogenic bacteria to a range of lactic acid concentration.

This work was also supported by grants from the National Research Foundation of Korea, which is funded by the Korean government (NRF-2017R1D1A1B03028730) and was part of the project entitled ‘Development of global senior-friendly health functional food materials from marine resources’, funded by the Ministry of Oceans and Fisheries, South Korea.

Probiotic properties of Weissella strains isolated from human faeces. 2003).

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CAS  Initial soil dilution plate screening detected 179 isolates inhibiting FOM growth. Strains with the highest biological control activity were isolated from mature compost samples and were mostly identified as Aspergillus spp.

Berjey’s Handbook of Bacteria [in Russian], Vol. In this study, we assessed antagonistic activity of the LAB strains, L. curvatus KCCM 43119, Ln. Although statistically significant inhibition of foodborne pathogenic bacterial growth was seen in some CFS treated with enzymes, such as catalase, lipase, and proteinase K (Supplementary Figure S1), the inhibitory effect of enzyme-treated CFS was much less than that of non-treated CFS (Figure 1), suggesting that hydrogen peroxide, fatty acids and proteinaceous compounds are not likely to be involved in the inhibition of foodborne pathogenic bacterial growth. 5, 895–904 (1997).

Synergistic and antagonistic hemolytic activities of bacteria of genus All LAB strains, which had been isolated from kimchi (Jang et al., 2002; Lee et al., 2002; Eom et al., 2008), were grown in De Man, Rogosa, and Sharpe (MRS) broth (BD Biosciences, Franklin Lakes, NJ, United States) at 30°C and pathogenic bacteria were grown in nutrient broth at 37°C. Some features of the site may not work correctly.

doi: 10.1016/S0740-0020(02)00174-0, Charteris, W. P., Kelly, P. M., Morelli, L., and Collins, J. K. (1998). doi: 10.1271/bbb.90656, Mheen, T. I., and Kwon, T. W. (1984). In addition to the competition for pathogenic bacteria, the LAB strains effectively excluded the adhesion of pathogenic bacteria in the human intestinal epithelial cells.

Food Res. Molecular mechanisms of antibiotic resistance, Comparative Genome Analysis of Lactobacillus reuteri and Lactobacillus fermentum Reveal a Genomic Island for Reuterin and Cobalamin Production, Comparison of phenotypic and molecular tests to identify lactic acid bacteria, Comparative Genomic and Functional Analysis of Lactobacillus casei and Lactobacillus rhamnosus Strains Marketed as Probiotics, Functional proteomics within the genus Lactobacillus. Consumers are therefore strongly demanding functional probiotic products based on fruits, vegetables, and cereals. Part of Springer Nature. J. Vet.

Front. |, https://www.frontiersin.org/articles/10.3389/fmicb.2018.01963/full#supplementary-material, Creative Commons Attribution License (CC BY).

prevents biofilm formation of human bacterial pathogens, Isolation and characterization of bacteriocin with anti- listeria and anti-MRSA activity produced by food and soil isolated bacteria, In Vitro Anti-Helicobacter pyloriActivity of the Probiotic Strain Bacillus subtilis 3 Is Due to Secretion of Antibiotics, Bacteriocins with anti-MRSA activity produced by water and soil isolated bacteria. The antagonistic ability includes adhesion to the intestine, reduction of pathogenic bacterial adhesion to the intestine, aggregation and coaggregation as well as production of antimicrobial substances such as bacteriocins. All rights reserved. To determine tolerance to the simulated intestinal condition, each bacterial suspension (200 μL) was mixed with 1 mL of the simulated intestinal juice with 300 μL of sterile saline solution and incubated at 37°C for 60, 120 or 240 min. Bories, G., Brantom, P., Brufau De Barbera, J., Cocconcelli, P., and Debski, B.

Food Microbiol.

Coaggregation activities of the LAB strains derived from kimchi. Isolation and characterization of bacteriocin-producing Pediococcus acidilactici HW01 from malt and its potential to control beer spoilage lactic acid bacteria. When the LAB strains and foodborne pathogenic bacteria were simultaneously incubated with the HT-29 cells, the adhesion of E. coli O157:H7 ATCC35150 was dramatically decreased in the presence of L. curvatus KCCM 43119, Ln.

doi: 10.1136/gut.35.4.483.

mesenteroides, W. cibaria, and W. koreensis, derived from kimchi may also provide promising probiotics with antagonistic activities.

3, 142–146 (1998).

Immunol. Rev. Thus, the LAB strains derived from kimchi are highly efficient strains for the resistance to acidic environments. In this study, antagonistic activities and probiotic potential of lactic acid bacteria (LAB) derived from a plant-based fermented food, kimchi, were demonstrated.

Front. 247, 48–54. Each bacterial suspension (200 μL) was mixed with 1 mL of the simulated gastric juice and 300 μL of sterile saline solution. ScienceDirect ® is a registered trademark of Elsevier B.V. ScienceDirect ® is a registered trademark of Elsevier B.V. Antagonistic activity of olive endophytic bacteria and of. Although Lactobacillus strains have been comprehensively studied for their viability in acidic environments ranging from pH 2.5 to 4.0 (Conway et al., 1987; Maragkoudakis et al., 2006; Choi and Chang, 2015), the tolerance of L. curvatus isolated from foods of plant origin to the acidic environment has not been demonstrated.

mesenteroides KCCM 43060, W. koreensis KCCM 41517, and W. cibaria KCTC 3746, isolated from a plant-based fermented food, kimchi, against foodborne pathogenic bacteria as well as their probiotic potential.

Characterization of probiotic carnobacteria isolated from rainbow trout (Oncorhynchus mykiss) intestine. Izobret., No.

The results of each assay were compared with an appropriate control and statistical analysis was performed using the unpaired two-tailed t-test at a significance level of P < 0.05. Probiotic potential of nutritionally improved Lactobacillus plantarum DGK-17 isolated from kimchi - a traditional Korean fermented food. 257, 262–267.

Puniya, M., Ravinder Kumar, M., Panwar, H., and Kumar, N. (2016). Microbial population dynamics of kimchi, a fermented cabbage product. The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. Microbiol.

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For the evaluation of the safety aspects of human health, potential probiotic bacteria do not contain transferable genes resistant to antibiotics (Anandharaj et al., 2015).

Effect of lactic acid, succinic acid and phenyllactic acid on foodborne pathogenic bacterial growth. Bull Exp Biol Med 144, 702–705 (2007).

Food Microbiol. Antagonistic activity of isolated bacteria against F. oxysporum and C. melongenae in dual culture in PDA after 4 days of culture at 27ºC. mesenteroides KCCM 43060 exhibited the highest resistance to bile salts after 4 h-incubation (96.7% of survival) in the presence of 0.3% bile salts.

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