الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
 |  | from | 122 |  |  |
| | | from | 122 | | |
Abstract
Seventy five random samples’ c , large scale (25
each of plain and fruit yoghurt) and 25 small scale yoghurt
samples were collected from different dairy shops and
markets in Zagazig City, Egypt to be examined for sanitary
and quality tests.
The obtained results revealed that the highest’
frequency distribution of examined yoghurt samples based
on suggested score for organoleptic examination (68%) of
examined large scale plain yoghurt samples lies within the
range of 93-100%(no defect), while (44%) of examined
large scale fruit within the same range and (40%) of
examined small scale plain yoghurt lies within the range of
67-73%(pronounced defect).
ItOs evident from the obtained results that the mean
acidity% in large scale plain and fruit yoghurt samples was
1.04% and 1.22% respectively, while in case of small scale
yoghurts was 1.19%.
The obtained results revealed that the mean
coliform countlg in examined yoghurt samples
was1.16x104, 1.1x1Q4, 8.9x105/ gm for large scale plain
and fruit and small scale ones respectively. The most
prevalent coliform species isolated from examined large
scale yoghurt samples were Citrobacter frendii,