What the study found
Some lactic acid bacteria isolated from Ethiopian kocho showed acid tolerance, bile resistance, pathogen inhibition, and genomic features consistent with probiotic potential. The identified strains were six Lactiplantibacillus plantarum strains and one Levilactobacillus brevis strain.
Why the authors say this matters
The authors conclude that these findings support the suitability of the strains for industrial and dietary applications. The study suggests that fermented Ethiopian kocho may be a source of functional probiotic candidates.
What the researchers tested
The researchers isolated 150 lactic acid bacteria from kocho and screened them for probiotic properties using standard methods. They then performed whole-genome sequencing on the most potent isolates and used BAGEL, Abricate with the Virulence Factor Database, and antibiotic resistance gene screening to assess genetic features.
What worked and what didn't
Seven isolates survived acidic conditions at pH 2 and also tolerated 0.3% bile salt for 24 hours. These isolates inhibited several foodborne pathogenic bacteria, and all were susceptible to ampicillin, tetracycline, and erythromycin, while the most potent isolates showed resistance to kanamycin.
What to keep in mind
The abstract does not describe detailed study limitations. The safety and probiotic conclusions are based on the tested isolates and the genomic analyses reported in the summary.
Key points
- Out of 150 LAB isolates from kocho, 7 showed strong acid tolerance and bile resistance.
- The seven potent isolates inhibited several foodborne pathogenic bacteria.
- Whole-genome sequencing identified six Lactiplantibacillus plantarum strains and one Levilactobacillus brevis strain.
- BAGEL predicted two class II bacteriocins in all seven strains.
- No putative virulence factors or antibiotic resistance genes were detected in the sequenced strains.
- All isolates were susceptible to ampicillin, tetracycline, and erythromycin; the most potent isolates were resistant to kanamycin.
Disclosure
- Research title:
- Kocho-derived Lactobacillus strains showed probiotic and safety-related traits
- Authors:
- Guesh Mulaw, Teklemichael Tesfay, Tesfaye Sisay, Diriba Muleta, Débora Brito Goulart, Olabisi Flora Davies‐Bolorunduro, Chioma Ohaeri, Nirupama Narayanan
- Institutions:
- Aksum University, Addis Ababa Science and Technology University, Addis Ababa University, Iowa State University, Manhattanville College
- Publication date:
- 2026-04-20
- OpenAlex record:
- View
- Image credit:
- Photo by Nennieinszweidrei on Pixabay · Pixabay License
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