Product Quality

More than 20 years of experience, R&D project expertise and investment have been necessary to offer a unique product quality on the market. The initial process developed by Belovo has been optimized since 2012 in order to offer a very high-quality product according to the highest market standards.

Avidin quality insurance

What does a concentration of 2 gr per liter of avidin mean? Not very much, if the 3 criteria of quality are not defined.

  • 1/ Specific activity: better specific activity means less avidin for the same effect. The specific activity of pure avidine at e-Proteins is > 99%.
  • 2/ Purity in proteins. Better purity means fewer regulatory affairs. The purity of the protein is superior than 99%.
  • 3/ Remaining Salt: to control the buffers in the in the drug substance is an advantage which simplifies the work of regulatory affairs.


In liquidIn powder
CharacterClear an colourlessClear an colourless
IdentityClear an colourlessClear an colourless
Purity (including natural dimer)>=99%>=99%
Biological activity>14,5 U/mg>14,5 U/mg
Aggregation (dimer)<= 5%<= 5%
Total Proteins (in liquid)2-5 mg/mLN/A
Material Endotoxin<1 EU/mL<1 EU/mL
Micro biological<1 EU/mL<1 EU/mL
Packaging in 5,20, 50mlOKN/A
Packging 1 gr , 10 gr , 100 grN/AOk

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