Probiotic potential of Bacillus velezensis: Antimicrobial activity against non-O1 Vibrio cholerae and immune enhancement effects on Macrobrachium nipponense

The aim of this study was to investigate the probiotic potential of bacteriocin-producing lactobacilli strain Lactobacillus plantarum G2 isolated from the vaginal mucus of healthy women. The antimicrobial effect of G2 was confirmed in the mixed culture with pathogenic Escherichia coli, Staphylococcus aureus, Salmonella abony and Pseudomonas aeruginosa, while bacteriocine activity was detected against S. aureus and S. abony only. The strain showed an excellent survival rate in low pH and in the presence of bile salts. The percentage of adhered cells of L. plantarum G2 to hexadecane was 63.85?2.0 indicating the intermediate hydrophobicity.

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Evaluation of the Antimicrobial Activity of Some Medicinal Plants against Enteric Bacteria with Particular Reference to Multi-Drug Resistant Vibrio cholerae

Tropical Journal of Pharmaceutical Research ◽

10.4314/tjpr.v8i3.44538 ◽

2009 ◽

Vol 8 (3) ◽

Cited By ~ 22

Author(s):

S Acharyya ◽

A Patra ◽

PK Bag

Keyword(s):

Antimicrobial Activity ◽

Medicinal Plants ◽

Vibrio Cholerae ◽

Enteric Bacteria ◽

Drug Resistant

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Bacillus velezensis LF01: in vitro antimicrobial activity against fish pathogens, growth performance enhancement, and disease resistance against streptococcosis in Nile tilapia (Oreochromis niloticus)

Applied Microbiology and Biotechnology ◽

10.1007/s00253-019-10176-8 ◽

2019 ◽

Vol 103 (21-22) ◽

pp. 9023-9035 ◽

Cited By ~ 2

Author(s):

Defeng Zhang ◽

Yanxia Gao ◽

Xiaoli Ke ◽

Mengmeng Yi ◽

Zhigang Liu ◽

...

Keyword(s):

Antimicrobial Activity ◽

Disease Resistance ◽

Growth Performance ◽

Oreochromis Niloticus ◽

Nile Tilapia ◽

Performance Enhancement ◽

Bacillus Velezensis ◽

Fish Pathogens ◽

Nile Tilapia Oreochromis Niloticus

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Identification and Evaluation of Probiotic Potential in Yeast Strains Found in Kefir Drink Samples from Malaysia

International Journal of Food Engineering ◽

10.1515/ijfe-2018-0347 ◽

2019 ◽

Vol 15 (7) ◽

Cited By ~ 1

Author(s):

Mohd Akmal Azhar ◽

Mimi Sakinah Abdul Munaim

Keyword(s):

Antimicrobial Activity ◽

Probiotic Properties ◽

E Coli ◽

Probiotic Potential ◽

Rdna Sequences ◽

Yeast Strains ◽

16S Rdna Sequences ◽

Human Body Temperature ◽

Probiotic Yeast ◽

New Yeast

AbstractKefir drink is a source of probiotic microorganism with remarkable functional and technological properties. The objective of this work is to isolate yeast strains from Malaysian kefir drink and evaluate them for probiotic potentials. In the present study, nine strains of probiotic yeast were isolated from a Malaysian kefir drink and identified according to their 16S rDNA sequences. Furthermore, their probiotic potential was evaluated. The probiotic properties were tested for aspects of antibiotic susceptibility, antimicrobial activity, and gastrointestinal condition tolerance (pH and temperature). Five isolated strains, M3, Y5, Y9, Y11 and A1, showed good tolerance towards low pH condition while three strains, A1, M1, and M3, showed antimicrobial activity against E. coli, P. aeruginosa, and Salmonella sp. Most isolates were resistant to penicillin, streptomycin, and ampicillin, and grew well at human body temperature. The result of this test indicates that the yeast strains isolated from Malaysian kefir drink have excellent potential for use as probiotics in various products. Lastly, kefir milk is one of the excellent source of probiotic yeast strains and could be used as a new yeast probiotic formulation or in food supplements.

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In Vitro Probiotic Potential of Lactic Acid Bacteria Isolated from Aguamiel and Pulque and Antibacterial Activity Against Pathogens

Applied Sciences ◽

10.3390/app9030601 ◽

2019 ◽

Vol 9 (3) ◽

pp. 601 ◽

Cited By ~ 4

Author(s):

Alicia Cervantes-Elizarrarás ◽

Nelly Cruz-Cansino ◽

Esther Ramírez-Moreno ◽

Vicente Vega-Sánchez ◽

Norma Velázquez-Guadarrama ◽

...

Keyword(s):

Antimicrobial Activity ◽

Helicobacter Pylori ◽

Lactic Acid ◽

Lactic Acid Bacteria ◽

Eradication Therapy ◽

Antimicrobial Effect ◽

E Coli ◽

Probiotic Potential ◽

H Pylori

Probiotics can act as a natural barrier against several pathogens, such Helicobacter pylori, a bacterium linked to stomach cancer. The aim of the present study was to isolate and identify lactic acid bacteria (LAB) from pulque and aguamiel, and evaluate their probiotic potential and antimicrobial effect on Escherichia coli, Staphylococcus aureus, and Helicobacter pylori. Ten isolates were selected and evaluated for in vitro resistance to antibiotics and gastrointestinal conditions, and antimicrobial activity against E. coli and S. aureus and the effect on H. pylori strains. 16S rRNA identification was performed. Ten potential probiotic isolates were confirmed as belonging to the genera Lactobacillus and Pediococcus. All the strains were susceptible to clinical antibiotics, except to vancomycin. Sixty percent of the isolates exhibited antimicrobial activity against E. coli and S. aureus. The growth of H. pylori ATCC 43504 was suppressed by all the LAB, and the urease activity from all the H. pylori strains was inhibited, which may decrease its chances for survival in the stomach. The results suggest that LAB isolated from pulque and aguamiel could be an option to establish a harmless relationship between the host and H. pylori, helping in their eradication therapy.

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