Abstract

The aim of this study was to assess the microbial quality of raw beef of butcher shops around Addis Ababa city. A total of 60 samples (N=60) of raw beef were randomly collected from Dukem (N=20), Kara (N-20) and Burayu (N=20) and biologically tested for total aerobic mesophilic bacteria, total coliform, yeast and mold, Staphylococcus species, Bacillus species and psychrophilic bacteria count using standard procedures. A mean of total aerobic mesophilic bacteria, yeast and mold, Staphylococcus spp., Bacillus spp. and psychrophilic bacteria count showed highly significant difference across the locations (P<0.05) except for total coliform. Overall, mean for total aerobic mesophilic bacteria, total coliform, yeast and mold, Staphylococcus spp., Bacillus spp. and psychrophilic bacteria count was 8.34, 4.69, 6.01, 5.36, 5.45, 4.26 log 10 cfu/g, respectively. Microbial quality of raw beef collected in Dukem site was the lowest compared to Kara and Burayu while Burayu site had the highest microbial count. The presence of high microbial count in this study might indicate improper meat handling and poor sanitary condition of slaughter houses, personnel, transportation and storage. Thus, to reduce the risks of food borne bacterial infections, there is a need to educate and be aware to practice good sanitation and safe meat handling techniques for butcher shops and personnel. Key words: Bacillus, raw beef, total coliform, total aerobic mesophilic, psychrophilic, staphylococcus, yeast, mold.

Highlights

  • Food-borne diseases remain the most significant food safety hazards worldwide associated with beef (Maripandi and Al-Salamah, 2010) and resulting from ingestion of bacteria, toxins, and cells produced by microorganisms present in food (Clarence et al, 2009)

  • Collected raw beef samples were biologically tested for total aerobic mesophilic bacteria, total coliform, yeast and mold, Staphylococcus species, Bacillus species and psychrophilic bacteria count

  • The mean count of total aerobic mesophilic bacteria at Burayu was the highest compared to Dukem and Kara samples

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Summary

Introduction

Food-borne diseases remain the most significant food safety hazards worldwide associated with beef (Maripandi and Al-Salamah, 2010) and resulting from ingestion of bacteria, toxins, and cells produced by microorganisms present in food (Clarence et al, 2009). Food and Agricultural Organization (FAO) of the United Nations and the World Health Organization (WHO) state that illness due to contaminated food is perhaps the most widespread health problem and important cause of reduced economic productivity (Käferstein, 2003). In the United States, 76 million illnesses, 325,000 hospitalizations and 5,000 deaths are caused by foodborne diseases in each year (31 known pathogens cause 9.4 million illnesses, 56,000 hospitalizations, and 1300 deaths) (Mead et al, 1999; Scallan et al, 2011). World Health Organization (WHO) has reported that 50 million children under five years of age get diarrheal diseases each year, due to the contaminated water and food stuffs.

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