Abstract
This research aimed to assess the microbial and sensory quality of dried Bombay duck (loitta) from various upazila markets in Sylhet district, ensuring its quality assurance. Carried out over six months from September 2022 to February 2023, the study collected 48 samples from two markets in each of the eight upazilas. Measurements included Aerobic Plate Count (APC), Total Coliform Count (TCC), presence of Escherichia coli & Salmonella spp., and sensory evaluation. Results indicated varying bacterial loads among upazilas, with Gowainghat showing the highest (log 5.69 ± 0.2) and Sylhet Sadar the lowest (log 3.453 ± 0.2) load. TCC ranged from 21 ± 1 to 80 ± 3 MPN/g, remaining within permissible limits. Escherichia coli prevalence was highest in Gowainghat (67%) and lowest in Sylhet Sadar and South Surma (17%). Similarly, Salmonella spp. prevalence was highest in Companiganj and Fenchuganj (67%) and lowest in Sylhet Sadar (17%). Samples from Gowainghat, Companiganj, and Fenchuganj were moderately good in quality based on origin. Sensory examination favored samples from South Surma. Presence of pathogenic bacteria suggests unsanitary processing conditions. Dried fish quality varied significantly among upazilas, emphasizing the need for improved hygiene and sanitation practices to ensure safe, high-quality dried loitta production.
Keywords: Dried Bombay duck, Salmonella spp., E. coli, Health risk, Upazila