B.High pressure high temperature hydrolysis processU.K.
1.Starting materialU.K.
For this process, Category 2 and Category 3 materials may be used.
2.Processing methodU.K.
High pressure high temperature hydrolysis shall be carried out according to the following processing standards:
(a)
The animal by-products must be heated to a core temperature of at least 180 °C for at least 40 minutes without interruption at a pressure (absolute) of at least 12 bar, heated by indirect steam application to the biolytic reactor;
(b)
The process must be carried out in a batch and the material in the vessel must be constantly mixed; and
(c)
The animal by-products must be treated in such a manner that the requirements regarding time, temperature and pressure are achieved at the same time.