5.7 understand the role of bacteria (Lactobacillus) in the production of yoghurt

Yeast makes bread, beer

Lactobacillus makes bacteria, yoghurt

Fermentation in Lactobacillus

Lactose —> lactic acid

Step 1

Sterilisation can happen if heated as well as using anti-bacteria. It removes the microbe which reduces contamination so we do not get infected.

Step 2

Pasteurisation kills the bacteria which reduces contamination so we do not get infected. Also, this makes sure that the right product is produced.

Step 3

Lactobacillus undergoes fermentation. pH lowers which denatures the protein

This is a triple science, paper 2 fact
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