Separation

After inactivation, the hydrolyzate is drained over a special sieve system, in order to remove all solid particles (bones). Subsequently the liquid hydrolyzate is passed through a decanter and separator in order to separate it into the following fractions: 

Fat
Soluble protein 
Insoluble protein
Bones

In some applications only the fat will be separated.

For applications in which the hydrolyzates have a low fat content and is without bones, separation of the liquid hydrolyzate is not applicable.

If a very clear fraction is needed, it is required to lead the soluble protein  through a clarifier or filter.

If predetermination of the Dalton weight is needed, it is necessary to ultrafiltrate the soluble protein.