to stop it going off
Because it is. face it
because of a bacteria called casein
it spoils the milk because of the chemicial reaction
A type of bacteria is added to milk to allow it to ferment.
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.
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
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 you make curd from milk, the milk ferments due to the introduction of good bacteria like Lactobacillus. This bacteria converts the lactose in the milk into lactic acid, which thickens the milk and gives it a tangy flavor. The result is a creamy, tangy product known as curd or yogurt.
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.
Usually the only thing added to milk is Vitamin D.For some milk lactobacillus is added to reduce the amount of milk sugar (lactose).To make cheeses acid, rennet, or various bacteria are added.The fat is removed from milk to make cream and low fat milk.