scholarly journals PRODUKSI BAKTERIOSIN OLEH Lactobacillus plantarum DJ3 DAN APLIKASINYA SEBAGAI PENGAWET DAGING

el–Hayah ◽  
2013 ◽  
Vol 4 (1) ◽  
Author(s):  
Liliek Hariani
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Human Health ◽  
Lactobacillus Plantarum ◽  
Crude Extract ◽  
Antibacterial Agent ◽  
Pathogenic Bacteria ◽  
E Coli ◽  
Growth Of Bacteria

<em>Lactic acid bacteria (LAB) are able to inhibit other bacteria by producing protein, named as bacteriocin. Bacteriocin which  produced by LAB is useful to inhibit pathogenic bacteria that harmful to human health or even makes food spoil. Bacteriocin is effective as antibacterial agent against pathogenic bacteria. Crude Extract of bacteriocin that produced by Lactobacillus plantarum DJ3 is able to inhibits the growth of E. Coli (4 mm) and S. aureus (5.33 mm). Application of bacteriocin in beef show that it able to inhibita the growth of bacteria. The amount of bacteria in beef that stored in 8 hours with bacteriocin addition are 1,3 X 10<sup>8 </sup>CFU/g, and 3.7 X  10<sup>8 </sup>CFU/g without bacteriocin addition. While the amount of bacteria in beef that stored in 12 hours with bacteriocin addition are 2.0 x 10<sup>9</sup> CFU/g and 1.5 x 10<sup>11 </sup>without bacteriocin addition</em>

scholarly journals Lactic Acid Bacteria (Lactobacillus bulgaricus and Streptococcus thermophillus) in Yogurt Inhibit the Growth of Escherichia coli, Salmonella typhimurium, and Shigella sp. In Vitro

2021 ◽  
Vol 31 (4) ◽  
pp. 2
Author(s):  
IDSAP Peramiarti
Keyword(s):  
Escherichia Coli ◽  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Salmonella Typhimurium ◽  
Pathogenic Bacteria ◽  
Test Method ◽  
P Value ◽  
E Coli ◽  
Significant Difference

Diarrhea is defecation with a frequency more often than usual (three times or more) a day (10 mL/kg/day) with a soft or liquid consistency, even in the form of water alone. Pathogenic bacteria, such as Escherichia coli, Salmonella typhimurium, and Shigella sp., play a role in many cases, to which antibiotics are prescribed as the first-line therapy. However, since antibiotic resistance cases are often found, preventive therapies are needed, such as consuming yogurt, which is produced through a fermentation process by lactic acid bacteria (LAB). This research aimed to determine the activity of lactic acid bacteria (Liactobacillus bulgaricus and Streptococcus thermophilus) in yogurt in inhibiting the growth of the pathogenic bacteria E. coli, S. typhimurium, and Shigella sp. The research applied in vitro with the liquid dilution test method and the true experimental design research method with post-test-only and control group design. The design was used to see the inhibitory effect of yogurt LAB on the growth of E. coli, S. typhimurium, and Shigell sp. to compare the effect of several different yogurt concentrations, namely 20%, 40%, 60%, and 80%. The results of the Least Significance Different analysis showed that there was a significant difference between yogurt with a concentration of 0% and that with various concentrations in inhibiting the growth of E. coli, S. typhimurium, and Shigella sp. with a p-value of &lt;0.05. Whereas, there was no significant difference in the various concentrations of yogurt in inhibiting the growth of the three kinds of bacteria with a p-value of &gt; 0.05.<p class="Default" align="center"> </p>

scholarly journals Antimicrobial activity of lactic acid bacteria isolated from garri on Escherichia coli strains isolated from clinical and environmental samples

2020 ◽  
Vol 12 (4) ◽  
pp. 357-365
Author(s):  
H.I. Atta ◽  
A. Gimba ◽  
T. Bamgbose
Keyword(s):  
Escherichia Coli ◽  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Lactobacillus Plantarum ◽  
Lactobacillus Acidophilus ◽  
Plant Pathogens ◽  
Resistant Bacteria ◽  
Fermented Foods ◽  
Environmental Isolates ◽  
E Coli

Abstract. The production of bacteriocins by lactic acid bacteria affords them the ability to inhibit the growth of bacteria; they are particularly important in the biocontrol of human and plant pathogens. Lactic acid bacteria have been frequently isolated from fermented foods due to the high acidity these foods contain. In this study, lactic acid bacteria were isolated from garri, a popular Nigerian staple food, which is fermented from cassava, and their antagonistic activity against clinical and environmental isolates of Escherichia coli was determined. The species of Lactobacillus isolated include: Lactobacillus plantarum (50%), Lactobacillus fermentum (20%), Lactobacillus acidophilus (20%), and Lactobacillus salivarius (10%). Growth inhibition of the strains of E.coli was observed in Lactobacillus plantarum that inhibited the growth of both. The clinical and environmental isolates of E. coli were inhibited by Lactobacillus plantarum, while Lactobacillus acidophilus showed activity against only the clinical isolate. The greatest zone of inhibition against the strains of E. coli was recorded by Lactobacillus acidophilus (22.7±1.53 mm). The bacteriocins produced by Lactobacillus species have a good potential in the biocontrol of pathogens, and should be the focus of further studies on antibiotic resistant bacteria.

scholarly journals In Vitro Evaluation of Probiotic Properties of Lactic Acid Bacteria Isolated from Some Traditionally Fermented Ethiopian Food Products

2019 ◽  
Vol 2019 ◽  
pp. 1-11 ◽  
Author(s):  
Guesh Mulaw ◽  
Tesfaye Sisay Tessema ◽  
Diriba Muleta ◽  
Anteneh Tesfaye
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Bile Salt ◽  
Lactobacillus Plantarum ◽  
Pathogenic Bacteria ◽  
Survival Rates ◽  
Lactobacillus Paracasei ◽  
Probiotic Properties ◽  
Sequence Comparisons

Probiotics are live microorganisms which when consumed in large number together with a food promote the health of the consumer. The aim of this study was to evaluate in vitro probiotic properties of lactic acid bacteria (LAB) isolated from traditional Ethiopian fermented Teff injera dough, Ergo, and Kocho products. A total of 90 LAB were isolated, of which 4 (4.44%) isolates showed 45.35–97.11% and 38.40–90.49% survival rates at pH values (2, 2.5, and 3) for 3 and 6 h, in that order. The four acid-tolerant isolates were found tolerant to 0.3% bile salt for 24 h with 91.37 to 97.22% rate of survival. The acid-and-bile salt-tolerant LAB isolates were found inhibiting some food-borne test pathogenic bacteria to varying degrees. All acid-and-bile-tolerant isolates displayed varying sensitivity to different antibiotics. The in vitro adherence to stainless steel plates of the 4 screened probiotic LAB isolates were ranged from 32.75 to 36.30% adhesion rate. The four efficient probiotic LAB isolates that belonged to Lactobacillus species were identified to the strain level using 16S rDNA gene sequence comparisons and, namely, were Lactobacillus plantarum strain CIP 103151, Lactobacillus paracasei subsp. tolerans strain NBRC 15906, Lactobacillus paracasei strain NBRC 15889, and Lactobacillus plantarum strain JCM 1149. The four Lactobacillus strains were found to be potentially useful to produce probiotic products.

scholarly journals In vitro evaluation of probiotic properties of lactic acid bacteria isolated from some traditionally fermented Ethiopian food products

2019 ◽  
Author(s):  
Guesh Mulaw ◽  
Tesfaye Sisay ◽  
Diriba Muleta ◽  
Anteneh Tesfaye
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Bile Salt ◽  
Lactobacillus Plantarum ◽  
Pathogenic Bacteria ◽  
Lactobacillus Paracasei ◽  
Steel Plates ◽  
Probiotic Properties ◽  
Sequence Comparisons

AbstractProbiotics are live microorganisms which when consumed in large number together with a food promote the health of the consumer. The aim of this study was to evaluatein vitroprobiotic properties of lactic acid bacteria (LAB) isolated from traditional Ethiopian fermentedTeff injeradough,ErgoandKochoproducts. A total of 90 LAB were isolated, of which 4 (4.44%) isolates showed 45.35-97.11% and 38.40-90.49% survival rate at pH values (2, 2.5 and 3) for 3 and 6 h in that order. The four acid tolerant isolates were found tolerant to 0.3% bile salt for 24 h with 91.37 to 97.22% rate of survival. The acid-and-bile salt tolerant LAB isolates were found inhibiting some foodborne test pathogenic bacteria to varying degrees. All acid-and-bile tolerant isolates displayed varying sensitivity to different antibiotics. Thein vitroadherence to stainless steel plates of the 4 screened probiotic LAB isolates were ranged from 32.75 to 36.30% adhesion rate. The four efficient probiotic LAB isolates that belonged toLactobacillusspecies were identified to strain level using 16S rDNA gene sequence comparisons and namely wereLactobacillus plantarumstrain CIP 103151,Lactobacillus paracaseisubsp. tolerans strain NBRC 15906,Lactobacillus paracaseistrain NBRC 15889 andLactobacillus plantarumstrain JCM 1149. The fourLactobacillusstrains were found to have potentially useful to produce probiotic products.

scholarly journals Screening and Characterization of Lactic Acid Bacteria with Broad-Spectrum Antimicrobial Activity from Tibetan Qula, a Yak Milk Cheese

2021 ◽  
Author(s):  
Bei Zhang ◽  
Jun Chen ◽  
Guofang Wu ◽  
Lei Wang ◽  
Guangyong Qin ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Lactic Acid ◽  
Tibetan Plateau ◽  
Lactic Acid Bacteria ◽  
Lactobacillus Plantarum ◽  
Broad Spectrum ◽  
Pathogenic Bacteria ◽  
The Tibetan Plateau ◽  
N Source ◽  
Rdna Sequencing

Abstract BackgroundLactic acid bacteria with natural, effective antibacterial activity, safe and reliable characteristic, gradually become one of the key technologies in food fermentation applications, food preservation and other fields. In this study, 112 presumptive lactic acid bacteria isolated from Tibetan Qula, a fermented yak cheese popular in the Tibetan plateau, were screened for potential probiotic microorganism with antimicrobial activity.Results12 lactic acid bacteria were found to have antibacterial activity, and strain QZ50 in particular showed broad-spectrum inhibition against pathogenic bacteria, which retained its antibacterial activity after sequential removal of acids and hydrogen peroxide, indicating the production of a broad-spectrum bacteriocin that could inhibite Micrococcus luteus ATCC 28001, Staphylococcus aureus ATCC 26003, Bacillus subtilis ATCC 63501, Escherichia coli ATCC 30105, Pseudomonas aeruginosa ATCC 10104, and Salmonella enterica ATCC 50094. Strain QZ50 was identified as Lactobacillus plantarum based on physicochemical characteristics and 16S rDNA sequencing. And the optimum production conditions were evaluated to obtain the highest yield of plantaricin QZ50. The optimum medium, temperature, initial pH, and inoculum amount for plantaricin QZ50 production were Man, Rogosa, and Sharpe (MRS), 30°C, 6.5, and 3%, respectively. In addition, different C source, N source and stimulating factors in medium show significant effects on plantaricin QZ50 production (P ＜ 0.05). The optimum C and N source were respectively glucose and yeast extract, and 2% Tween 80 contributed highest production of plantaricin QZ50. Plantaricin QZ50 exhibited strong heat stability and remained activity at pH 2.0–8.0. In addition, plantaricin QZ50 was inactivated by pepsin, proteinase K, trypsin, papain, and chymotrypsin.ConclusionsSome strains of Lactobacillus isolated from the Qula in the Tibetan plateau have good antibacterial activity which could be considered as potential probiotic. The strain of Lactobacillus plantarum QZ50, with a broad-spectrum, stable, safe, and natural antibiotic, has potential applications as a food biopreservative.

scholarly journals Probiotic Properties of Lactiplantibacillus plantarum LB5 Isolated from Kimchi Based on Nitrate Reducing Capability

Foods ◽  
2020 ◽  
Vol 9 (12) ◽  
pp. 1777
Author(s):  
Hyejin Sohn ◽  
You Hyun Chang ◽  
Jong Hyeok Yune ◽  
Chang Hee Jeong ◽  
Dong Min Shin ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Mrna Expression ◽  
Inflammatory Cytokines ◽  
Pathogenic Bacteria ◽  
Probiotic Properties ◽  
Expression Levels ◽  
E Coli ◽  
Anti Inflammatory ◽  
Mrna Expression Levels

The purpose of this study was to investigate the probiotic properties of lactic acid bacteria isolated from Korean radish water kimchi (dongchimi). A total of 800 isolates of lactic acid bacteria were isolated from kimchi, and the strain having reduction and tolerance capability for nitrate and nitrite was selected and identified as Lactiplantibacillus plantarum LB5 (LPLB5) by 16S rRNA sequencing. LPLB5 showed higher tolerance to acidic pH values (pH 2.5), 0.3% bile salts, and heat treatment (40, 50, and 60 °C). Antibacterial activity showed strong inhibition against four food-borne pathogenic bacteria (E. coli O157:H7 ATCC 35150, Pseudomonas aeruginosa KCCM 12539, Listeria monocytogenes KCCM 40307, and Staphylococcus aureus ATCC 25923). The strain did not show any antibiotic resistance, β-hemolytic activity, or ability to produce β-glucuronidase. LPLB5 also exhibited a 30% auto-aggregation ability and 33–60% co-aggregation ability with four pathogenic bacteria (E. coli O157: H7 ATCC 35150, E. coli KCTC 2571, L. monocytogenes ATCC 51776, and S. aureus ATCC 25923). Moreover, the strain showed approximately 40% 2,2-diphenyl-1-picryl-hydrazyl (DPPH) radical- and 10% 2-azino-bis-(3-ethylbenzothiazoline-6-sulfonic acid (ABTS) radical-scavenging activity. In cell culture studies, human colon epithelial cells (Caco-2) were treated with LPLB5 (106 and 107 CFU/mL); the bacteria showed more than 70% adherence onto and a 32% invasion rate into the Caco-2 cells. LPLB5 significantly decreased the mRNA expression levels of pro-inflammatory cytokines (interleukin-1 beta (IL-1β), interleukin 6 (IL-6), and tumor necrosis factor-alpha (TNF-α)) and increased the mRNA expression levels of anti-inflammatory cytokines (interleukin-4 (IL-4), interleukin-10 (IL-10), and interferon-gamma (IFN-γ)) in lipopolysaccharide-stimulated Caco-2 cells. Our data suggest that LPLB5 is safe and possesses probiotic, antioxidant, and anti-inflammatory activities.

Effect of bovine colostrum, cheese whey, and spray-dried porcine plasma on the in vitro growth of probiotic bacteria and Escherichia coli

2014 ◽  
Vol 60 (5) ◽  
pp. 287-295 ◽  
Author(s):  
Claude P. Champagne ◽  
Yves Raymond ◽  
Yves Pouliot ◽  
Sylvie F. Gauthier ◽  
Martin Lessard
Keyword(s):  
Escherichia Coli ◽  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Pathogenic Bacteria ◽  
Cheese Whey ◽  
Probiotic Bacteria ◽  
E Coli ◽  
Spray Dried ◽  
Mrs Broth

The aim of this study is to evaluate the effects of defatted colostrum (Col), defatted decaseinated colostrum whey, cheese whey, and spray-dried porcine plasma (SDPP) as supplements of a growth medium (de Man – Rogosa – Sharpe (MRS) broth) on the multiplication of lactic acid bacteria, probiotic bacteria, and potentially pathogenic Escherichia coli. Using automated spectrophotometry (in vitro system), we evaluated the effect of the 4 supplements on maximum growth rate (μmax), lag time (LagT), and biomass (ODmax) of 12 lactic acid bacteria and probiotic bacteria and of an E. coli culture. Enrichment of MRS broth with a Col concentration of 10 g/L increased the μmax of 5 of the 12 strains by up to 55%. Negative effects of Col or SDPP on growth rates were also observed with 3 probiotic strains; in one instance μmax was reduced by 40%. The most effective inhibitor of E. coli growth was SDPP, and this effect was not linked to its lysozyme content. The positive effect of enrichment with the dairy-based ingredient might be linked to enrichment in sugars and increased buffering power of the medium. These in vitro data suggest that both Col and SDPP could be considered as supplements to animal feeds to improve intestinal health because of their potential to promote growth of probiotic bacteria and to inhibit growth of pathogenic bacteria such as E. coli.

scholarly journals Lactic Acid Bacteria against Listeria monocytogenes

2021 ◽  
Vol 49 ◽  
Author(s):  
Juliana Sousa Bogea ◽  
Luciane Manto ◽  
Jucilene Sena Dos Santos ◽  
Lara Franco Dos Santos ◽  
Franciele Maria Gotardo ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Listeria Monocytogenes ◽  
Lactic Acid Bacteria ◽  
Lactobacillus Plantarum ◽  
Biofilm Formation ◽  
Pathogenic Bacteria ◽  
Diffusion Method ◽  
Polystyrene Surface ◽  
Bifidobacterium Animalis ◽  
Agar Diffusion

Background: Listeria monocytogenes is a pathogenic bacterium that can contaminate food and cause public health problems due its ability to form biofilms and resistance to sanitizers, it is responsible for sanitary and economic losses in food producing establishments. The difficulties in controlling biofilms and increasing resistance to traditional antibacterial agents is motivating studies of alternative potential biological agents for the control of pathogenic biofilms, among which lactic acid bacteria (LABs) are included. The objective of this work was to evaluate the activity of LABs against Listeria monocytogenes biofilm formation on polystyrene plates, a surface commonly used in the food industry.Materials, Methods & Results: Lyophilized commercial strains of Bifidobacterium animalis, Lactobacillus fermentum, Lactobacillus plantarum, Lactobacillus salivaris and Lactobacillus acidophilus were used. The strain of Listeria monocytogenes (L4) was isolated from polystyrene mats from a poultry slaughterhouse cutting room and demonstrated the ability to attach to microplates and resistance to sanitizers (sodium hypochlorite and hydrogen peroxide) at all times, temperatures and tested surfaces. The antimicrobial activity of LABs was evaluated by the agar diffusion method. The LABs that presented action on Listeria monocytogenes were selected for the inhibition and/or removal of biofilms in microplates, and all experiments were carried out in triplicate. Only Bifidobacterium animalis and Lactobacillus plantarum demonstrated action against Listeria. monocytogenes in the agar diffusion assays and were selected for inhibition and competition assays. Furthermore, competition of LABs against Listeria monocytogenes adhesion was evaluated. There was no significant difference between LABs and Listeria monocytogenes, alone or in combination, at temperatures of 30ºC and 37ºC in the Listeria monocytogenes inhibition assays on polystyrene surface. The lactic acid bacteria evaluated did not demonstrate inhibition of Listeria monocytogenes adhesin testes with optical density visualization, however, it was possible to identify a reduction in Listeria monocytogenes counts with the application of Bifidobacterium animals and Lactobacillus plantarum in the testes of competition against biofilm formation. In competition tests Bifidobacterium animalis and Lactobacillus plantarum have an injunction in Listeria monocytogenes, indicating that these lactic acid bacteria can retard Listeria biofilm formation on polystyrene surfaces and thus help control the pathogen in the food industry.Discussion: A potential mechanism to control biofilm adhesion and formation of pathogens for nutrients and fixation on surfaces, multiplication factors and surfaces are a challenge in controlling biofilms of pathogenic microorganisms, alternative measures to traditional methods for inactivating pathogens and biofilm formers bacteria are necessary. In this sense, lactic acid bacteria generate high levels of bacteriocin and are effective in inhibiting the biofilm of pathogenic bacteria, however, our study did not reveal this. We verified that Bifidobacterium animalis and Lactobacillus plantarum have an inhibitory action on Listeria monocytogenes, indicating that these lactic acid bacteria can be used to delay the formation of biofilms by Listeria on polystyrene surfaces, helping to control this pathogen in food industry.Keywords: control of biofilm, pathogenic bacteria, food industry, polystyrene surface, FTDs.

scholarly journals LACTIC ACID BACTERIA AS BIOACTIVE POTENTIAL AGAINST SELECTED RESISTANCE CANDIDA SPECIES AND PATHOGENIC BACTERIA

2020 ◽  
Vol 8 (2) ◽  
Author(s):  
Chiamaka Linda Mgbechidinma ◽  
Caleb Oladele Adegoke ◽  
Samuel Temitope Ogunbanwo
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Lactobacillus Plantarum ◽  
Candida Species ◽  
Pathogenic Bacteria ◽  
Fermented Milk ◽  
Diffusion Method ◽  
Antibiotics Resistance ◽  
Zone Of Inhibition ◽  
Antibiotic Susceptibility Test

This research focused on the isolation and antagonistic action of Lactic Acid Bacteria (LAB) against certain antibiotics resistance disease causing bacteria and fungai. Antibiotic resistance is an increasing problem amid humans and animals in land-dwelling or marine environments hence making treatment of infections difficult. Antibiotic susceptibility test for bacteria pathogen was performed using the disc diffusion method while antifungal susceptibility and antimicrobial activity of LAB were carried out using agar well diffusion method. All the pathogenic bacteria used as indicator organisms were multiple antibiotics resistance and 100 percent resistance to gentamycin and pefloxacillin with the exception of Staphlococcus aureus. Candida species was 100 percent resistance to Ketoconazole, fluconazole and miconazole. Twenty-two LAB isolates were gotten from fermented milk and milk products. The isolates were identified as Lactobacillus plantarum, Lactobacillus fermentum, Lactobacillus delbrueckii, Leuconostoc mesenteriodes, Lactobacillus casei, Lactobacillus brevis, Lactobacillus acidophilus, Lactococcus lactis, Streptococcus thermophilus, Lactobacillus helveticus and Lactobacillus rhamnosus. LAB produced lactic acid to varying concentrations, having its production peak (1.80g/L) at 48 h of incubation by Lactobacillus plantarum. Lactobacillus fermentumNU2 produced the highest quantity of diacetyl (2.80g/L) while Lactobacillus acidophilusGO8 and Lactococcus lactisGO9 produced the highest amount of hydrogen peroxide (0.030g/L) at 48 h of incubation. Lactobacillus plantarumGO16 inhibited Bacillus cereus while Lactobacillus acidophilusGO8 inhibited Staphylococcus aureus with 28 mm zone of inhibition. Lactobacillus plantarumNU1 and Lactobacillus plantarumGO16 inhibited Candida albican with 25 mm zone of inhibition. LAB can be used as probiotics in preventing infections caused by Candida species and pathogenic bacteria. Keywords: Lactic Acid Bacteria, Fermented milk, antibiotics resistance, antagonistic activity, pathogens.

Isolation, identification and characterization of Lactobacillus plantarum from camel milk and its antagonist effect against diarrheal bacteria.

2018 ◽  
Vol 30 (4) ◽  
pp. 283 ◽  
Author(s):  
Meriem Toualbia, Abd ElKader Delmi Bouras ◽  
Malika Koiche, Mohamed Kerkoud
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Lactobacillus Plantarum ◽  
Pathogenic Bacteria ◽  
Inhibitory Effect ◽  
Bioactive Molecules ◽  
Camel Milk ◽  
Fecal Samples ◽  
Infantile Diarrhea ◽  
Rdna Sequencing

The main objective of this study is to define probiotic bacteria efficiency against bacterial infantile diarrhea. Lactic acid bacteria (LAB) was used as a natural resource and extracted of camel milk from southern Algeria. The isolation was followed by molecular identification using the 16S rDNA sequencing method. One hundred and fifty fecal samples were collected over 18 months from children suffering from diarrhea and aged 2 years or under. Identification results reveal the isolated lactic bacteria as Lactobacillus plantarum. In the other side, a total of 120 fecal samples were positive for bacterial growth, these pathogenic bacteria were identified as: Escherichia fergusonii (92%), Salmonella enterica subsp. Diarizonae (7.33%) and Proteus mirabilis (0.66%). The inhibitory effect study of lactic acid bacteria on pathogenic bacteria shows varying effects of L. plantarum in relation to the various pathogenic isolates, mentioning that the most important effect was expressed against Escherichia fergusonii with 22 mm. All the results allow us to classify that camel's milk is a natural source rich in lactic acid bacteria, in particular L. plantarum, with an inhibitory ability against the pathogenic bacteria responsible for diarrhea. Therefore L. plantarum produces bioactive molecules responsible for this effect.

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