Physicochemical and microbiological evaluation of yoghurt sold in Addis Ababa, Ethiopia

Abstract

Background Increase in demand for yoghurt in Addis Ababa, in recent times has led to proliferation of different kinds of commercially produced (branded) yoghurt in line with the traditional (unbranded) one in the market. However, limited or no available data for the quality of gradually increasing different kinds of commercially produced (branded) yoghurt in line with the traditional (unbranded) one in the market. It was therefore vital to evaluate the physicochemical property and microbial quality of yoghurt sold in Addis Ababa in order to determine its quality and perhaps safeguard the health and wellbeing of the numerous people consuming yoghurt products.Methods A total of 40 yoghurt samples consisted of 20 traditionally (unbranded) and 20 commercially produced (branded) were analysis for physicochemical property (pH, moisture, ash, fat, Total Solid (TS) and Solid Not Fat (SNF)) and microbial quality (Coliform Count (CC) and Yeast and Mould Count (YMC) were performed using TEMPO system whereas; Total Viable Count (TVC) was performed according to standard culture method). ResultsIn the traditionally produced (unbranded) yogurt samples, the fat content was 4.44%, pH 3.99, TS content 10.