Probiotic Potential of Fermented Yam Wash Water and Unprocessed Milk: Lactobacillus Isolation and Characterization

This study investigated the fermented yam wash water and raw milk for their probiotic potentials through detailed isolation and characterization of lactobacillus. There were a total of eleven different types of lactobacilli isolated by traditional methods of fermentation. Their morphological and biochemical characteristics were well studied. A number of microbiological methods such as Gram staining, application of various biochemical tests and microscopic examinations were performed to accurately identify and characterize bacteria. Results showed concordant results in species of lactobacillus with variant biochemical profiles, indicating the rich microbial potential of indigenous fermentation processes. Similarly, enzymatic capabilities demonstrated variability, hence giving variable probiotic functionality. All the eleven samples were identified to belong to Lactobacillus spp. based on striking differences from the oxidase and catalase reactions. This study serves as formidable evidence in the application of locally fermented substrates in probiotic interventions, particularly in animal nutrition. These findings have bearing on the understanding of indigenous fermentation techniques and further development of probiotics in a sustainable manner within agricultural systems.