Journal of the Egyptian Public Health Association

Table 2 Distribution of TPC, TC and total yeasts and moulds in packed and unpacked bread samples, Alexandria, 2021–2022

From: Microbiological quality of some packed and unpacked bread products in Alexandria, Egypt

	Packaging
	Packed n = 84	Unpacked n = 84	p value
Total plate count (CFU/g)
Mean ± SD	1.39 × 10⁶ ± 8.54 × 10⁶	2.07 × 10⁵ ± 4.09 × 10⁵	p = 0.923 U = 3558.0
Median (IQR)	1.34 × 10³	6.9 × 10²
Min–Max	0.0—7.74 × 10⁷	0.0—2.22 × 10⁶
Total yeasts and moulds (CFU/g)
Mean ± SD	3.40 × 10³ ± 1.73 × 10⁴	6.37 × 10³ ± 2.45 × 10⁴	p = 0.145 U = 3938.5
Median (IQR)	0.0 (350.0)	0.0 (725.0)
Min–Max	0.0–15 × 10⁴	0.0–15 × 10⁴
Total coliforms (MPN/g)
Mean ± SD	3.25 ± 2.18	31.61 ± 168.42	p = 0.065 U = 3737.5
Median (IQR)	3.0 (0.0)	3.0 (0.0)
Min–Max	3.0–23.0	3.0–1.1 × 10³

p* significant at level < 0.05
IQR Interquartile range, TPC Total plate count, TC Total coliform count, CFU/g Colony forming unit/gm, MPN/g Most probable number/gm, SD Standard deviation

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