Question

8. Write down some applications of HPP in meat preservation. What is the advantage of micro-filtered milk over pasteurized milk?

Answer 1

HPP or high pressure processing enables a non thermal way of removing mocro organisms from the food (meat) by not damaging it texture, nutritional properties, enzyme activity etc.

Applications in preservation

Inactivates parasites, bacteria, fungal spores, viruses. which increases shelf life.

Selectively inactivates certain enzymes which leads to meat degradation.

Macro molecules are coverted in to simple forms where small molecules remain unaffected improves texture.

Breaking of lysosomal enzymes with constant uniform pressure leads to increase in meat tenderization.

Advantages of microfiltered milk over pasteurised milk.

It is a process by which milk is treated to a very fine filtration process.

It removes more bacteria than pasteurisation. 99.5% bacteria is eliminated.

Gives milk a longer shelf life up to 30 days compared to 1-5 days of pasteurised milk.