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<p>The aim of this study is to investigate some probiotic properties of six LABs (three of <i>Lactiplantibacillus plantarum LP</i> I-2, <i>LP</i> I-3, <i>LP</i> I-5 and three of <i>Pediococcus pentosaceus PP</i> I-1, <i>PP</i> I-2, <i>PP</i> I -3<i>)</i>, including antibacterial potential against <i>Salmonella</i> Typhimurium (ATCC 14088), <i>Pseudomonas aeruginosa</i> (ATCC 27853), <i>Enterococcus faecalis</i> (ATCC 29212), and <i>Klebsiella pneumoniae</i> (ATCC 700603), their tolerance to low pH, pancreatin, and bile salts, cell surface hydrophobicity, autoaggregation, as well as determining the antibiotic resistance. While <i>LP</i> I-2 and <i>PP</i> I-4 showed the highest and lowest resistance in the presence of pepsin and bile salt, respectively, <i>PP</i> I-1 and <i>PP</i> I-4 exhibited the highest and lowest resistance in the presence of pancreatin. Strains <i>PP</i> I-1, <i>LP</i> I-3, and <i>LP</i> I-5 formed the highest antibacterial activity against <i>P. aeruginosa</i>,<i> S. </i><i>Typhimurium</i>, and <i>E. faecalis.</i> All strains were susceptible to amoxicillin–clavulanic acid and were resistant to kanamycin. <i>LP</i> I-5 (73%) and <i>LP</i> I-2 (33%) demonstrated the highest hydrophobicity ratio after 24&#xa0;h in the presence of chloroform and n-hexane, respectively. The highest and lowest autoaggregation was observed in <i>LP</i> I-3 (21%) and <i>PP</i> I-4 (2.5%). In conclusion, <i>LP</i> I-2, <i>LP</i> I-3, and <i>LP</i> I-5 had desirable in vitro probiotic properties and strong inhibitory activity against the tested pathogens, and they appear to be promising candidates for probiotic bacteria to be used in the food industry.</p>

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Assessment of antimicrobial activity and selected safety attributes of Lactiplantibacillus plantarum and Pediococcus pentosaceus strains for potential probiotic use

  • 期刊论文

  • 发表日期：

    2026年1月5日

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  • Hatice Ahu Kahraman,
  • Melahat Deveci,
  • Elif Naz Gürsel,
  • Aleyna Gacar,
  • Neslihan Öztürk

摘要

The aim of this study is to investigate some probiotic properties of six LABs (three of Lactiplantibacillus plantarum LP I-2, LP I-3, LP I-5 and three of Pediococcus pentosaceus PP I-1, PP I-2, PP I -3), including antibacterial potential against Salmonella Typhimurium (ATCC 14088), Pseudomonas aeruginosa (ATCC 27853), Enterococcus faecalis (ATCC 29212), and Klebsiella pneumoniae (ATCC 700603), their tolerance to low pH, pancreatin, and bile salts, cell surface hydrophobicity, autoaggregation, as well as determining the antibiotic resistance. While LP I-2 and PP I-4 showed the highest and lowest resistance in the presence of pepsin and bile salt, respectively, PP I-1 and PP I-4 exhibited the highest and lowest resistance in the presence of pancreatin. Strains PP I-1, LP I-3, and LP I-5 formed the highest antibacterial activity against P. aeruginosa, S. Typhimurium, and E. faecalis. All strains were susceptible to amoxicillin–clavulanic acid and were resistant to kanamycin. LP I-5 (73%) and LP I-2 (33%) demonstrated the highest hydrophobicity ratio after 24 h in the presence of chloroform and n-hexane, respectively. The highest and lowest autoaggregation was observed in LP I-3 (21%) and PP I-4 (2.5%). In conclusion, LP I-2, LP I-3, and LP I-5 had desirable in vitro probiotic properties and strong inhibitory activity against the tested pathogens, and they appear to be promising candidates for probiotic bacteria to be used in the food industry.