to stop it going off
Because it is. face it
because of a bacteria called casein
A type of bacteria is added to milk to allow it to ferment.
its a chemical bacteria called lactobacillus
it spoils the milk because of the chemicial reaction
When milk is heated to 66 degrees to kill most of the bacteria, the primary thing which happens is its chemical composition is slightly altered. This also kills natural enzymes within the milk.
The term for the lumps that form when acid is added to milk is curdling. This happens when the casein in the milk reacts to the acidity.
it spoils the milk because of the chemicial reaction
Good question! In yoghurt production, the bacteria Lactobacillus is added to milk. The Lactobacillus is cultured at 46 degrees celcius, releasing lactic acid into the milk and converting the milk into yoghurt.
The result depends on the ingredients placed in the hot milk.
it is made of milk First of all milk is pasteurized to get rid of any harmful bacteria. Then the bacteria Lactobacillus is added. The lactobacillus is cultured at 46 degrees Celsius. This releases lactic acid into the milk which turns it into yogurt.
when lactobacillus acidophilus bacteria are added to milk they eat lactose (a type of sugar) present in the milk and give out lactic acid. casein a protein is responsible for coagulation of milk and coagulates the milk only in an acidic environment which is provided by lactic acid