Yeast Extract (Autolysate)

Peptone from yeast is non-mammalian peptone and is completely free from any harmful substances that may lead to disorder such as TSE/BSE which is caused due to infectious protein.

 

Description: It is derived from Autolysis (Process) of Brewer's Yeast (Saccharomyces cerevisiae) further purified to produce free flowing spray dried powder with characteristic proteinous odour.

 

Application: Source of organic nitrogen recommended in Culture Media for Analytical microbiology, Diagnostics, Laboratory Reagent and Industrial fermentation.

 

Physio-chemical characteristics

PARAMETERS

STANDARD

Colour

Light brown

Solubility in water (5 % solution)

Completely soluble in water

Clarity (2% w/v aqueous solution)

100 % Clear solution

pH (5 % solution)

6.0 - 7.0 (at room temp.)

Loss on drying

< 5.0 %

Total nitrogen TN (Kjeldahl Nitrogen)

12.0 to 14.2 %

Alpha (Amino Nitrogen)

2.5 to 3.5 %

Total Ash
< 12.0%

 

Microbiology

 

PARAMETERS

STANDARD

Total aerobic microbial count (TPC)

< 10000 cfu/gm

Total Yeast and mould count (cfu/gm)

< 100 cfu/gm

Test for Pathogen

  • E.coli
  • Salmonella
  • Pseudomonas aeruginos
  • Staphylococcus aureus

 

Negative in 10 gm of sample


Culture Response (GPT)**

 

Organisms

Culture Response (Growth Test)

Escherichia coli

 Luxuriant

Salmonella typhi

 Luxuriant

Pseudomonas aeruginosa

 Luxuriant

Staphylococcus aureus

 Luxuriant

Enterobacter aerogenes

 Luxuriant


**GPT (Growth Promotion Test) is carried out by using 2% Peptone, 0.5% NaOH and 1.5% Agar in water at optimum/standard lab testing conditions.

 

Packing / Storage / Shelf Life

  • Packed in -25kg HDPE drum with inner PP lining bag
  • Storage -Under 30oC in dry conditions
  • Expiry -As per label claim


Please note: This product can be customised to suit desired specifications or your in-house specifications.

To know more, please go to - Tailor-madeProducts