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Yeast Extract
Code: LP0021
A water soluble autolysate in powder form, for use in culture medium as a source of nitrogen and water soluble B vitamins.

Physical Characteristics:
Straw, free flowing powder
Formal Nitrogen 4.5 – 5.8%
Total Nitrogen 10.0 – 12.5%

Typical analysis (% w/w)

Total Nitrogen 10.9

Amino Nitrogen 5.3

Sodium chloride 0.3

pH (2% solution) 7.0 ± 0.2

Storage instructions
Store the powder at 10–30°C and use before the expiry date

Quality control
Test Expected results from a 2% solution
Fermentable Carbohydrate Positive
Growth recovery of ;
Escherichia coli ATCC© 25922, Turbid Growth
Staphylococcus aureus ATCC© 9144, Turbid Growth
Enterococcus faecalis ATCC© 29212, Turbid Growth

Yeast Extract
Code: LP0021
A water soluble autolysate in powder form, for use in culture medium as a source of nitrogen and water soluble B vitamins.

Physical Characteristics:
Straw, free flowing powder
Formal Nitrogen 4.5 – 5.8%
Total Nitrogen 10.0 – 12.5%

Typical analysis (% w/w)

Total Nitrogen 10.9

Amino Nitrogen 5.3

Sodium chloride 0.3

pH (2% solution) 7.0 ± 0.2

Storage instructions
Store the powder at 10–30°C and use before the expiry date

Quality control
Test Expected results from a 2% solution
Fermentable Carbohydrate Positive
Growth recovery of ;
Escherichia coli ATCC© 25922, Turbid Growth
Staphylococcus aureus ATCC© 9144, Turbid Growth
Enterococcus faecalis ATCC© 29212, Turbid Growth

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