ABSTRACT

Lactase-producing bacteria have several potential health advantages and are used as probiotics. This study aims toward the comparative study of lactase-producing bacteria isolated from different plant and animal sources based on their biochemical characterization. The bacterial isolates were isolated from eight different sources. The colonies were then selected based on morphological characterization. The selected isolates were subjected to X-gal screening to confirm lactase–producing species. The selected 8 isolates were further subjected to biochemical characterization. The isolates showed different growth patterns at different temperatures (30°C to 42°C), salt concentration (3% to 9%) and pH (pH 3 to pH 9). The isolates showed diverse antimicrobial and antibiotic activity. The enzyme activity of the isolates was calculated and influenced by different parameters. Keywords: Lactase-producing bacteria, Probiotics, Lactose intolerance, Antibiotic susceptibility, antimicrobial activity
Publication date: 01/08/2023

https://ijbpas.com/pdf/2023/August/MS_IJBPAS_2023_7382.pdf

Download PDF
https://doi.org/10.31032/IJBPAS/2023/12.8.7382