5.7 Yoghurt

1.  The milk is obtain from the cow through process called milk production
2.  Milk goes through process where they remove pathogens such as TB bacillus. This process is called pasteurization where this heat treatment kills off any pathogens in the milk. 
3.  Milk sugar then converted to lactic acid - From incubating the milk to about 45-46 degree centigrade with the addition of lactobacillus
4.  Lactobacillus produces the enzyme that breaks down the milk sugar lactose to produce lactic acid.
5.  The lactic acid result in a lower ph making the milk protein to solidify and this solidification of the milk product is what we call yoghurt.