Table 3 Microbial contamination of IgY samples. Four sample pools of IgY were generated through the pooling of three randomly selected IgY samples in each pool. Colony forming units (CFU) were quantified in each pool for the listed contaminants.

From: Mass production of IgY-containing tablets for COVID-19 transmission control

Contaminant

Sample Pool

Quality control specification

1

2

3

4

Coliform

< 10

< 10

< 10

< 10

< 10

E. coli

< 10

< 10

< 10

< 10

< 10

Staphylococcus sp.

< 10

< 10

< 10

< 10

< 10

Yeast/mold

< 10

< 10

< 10

< 10

< 10

Salmonella sp.

NEG

NEG

NEG

NEG

NEG

Listeria monocytogenes

NEG

NEG

NEG

NEG

NEG

Standard Plate Count

< 100

100

100

< 100

< 5000

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