Tayseer Abd Elrahim Sulieman and Mohammed Osman Mohammed

Faculty of Animal Production, University of Khartoum

SUMMARY

This study was carried out to evaluate the  microbial quality of imported processed cheese.

            The study was based on collecting twenty seven samples of one type of processed cheese, nine from Khartoum, nine from Khartoum North and nine from Omdurman. Samples were collected from groceries of three different areas according to the income level of the majority of residents in the area. The microbial quality (total bacterial count, coliforms, lipolytic bacteria, proteolytic bacteria and yeasts and moulds count of the  processed cheese were estimated.

The microbiological results revealed that there was a significant difference (P<0.01) between cities in total bacterial count and proteolytic bacteria count (P<0.05). They were high in Khartoum North (2.32± 0.001 and 1.19 ± 0.013 respectively).

There was no significant difference (P>0.05) in coliform and lipolytic bacteria count between the areas, while there was a significant difference (P<0.001) in total bacterial count, proteolytic bacteria count (P<0.01) and yeasts and moulds count (P<0.05). Total bacterial count was high in high income area (2.22±0.007), while proteolytic bacteria count was high in the middle income area (1.18±0.028). Yeasts and moulds count was high in the low income areas (1.33 ± 0.024).

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