Chemical reactions can often be slowed by lowering the temperture, get it cold and keep it cold. Also reother sources of energy, light. keep it dark. And if possible remove the reactant that causes the undesired reaction, in this case keep it away from oxygen. So, you could freeze it, in a dark place away from oxygen, also uv radition or germicidal lamps will kill the bacteria thaat cause the spoiling.
You taste lactic acid when the milk becomes sour. Acids, in general, sour.
Curd generally has a tangy and slightly sour taste due to the fermentation process that transforms milk into curd. Additionally, the taste can vary depending on the type of milk used and the fermentation time.
Sour milk can be used in recipes as a substitute for buttermilk. To make a sour milk substitute, add 1 tablespoon of vinegar or lemon juice to 1 cup of milk and let it sit for 5-10 minutes. This will curdle the milk and create a similar tangy flavor to buttermilk.
Because it is a temperature dependent change.
It is a chemical change because there is a chemical reaction occurring that is rotting the milk. An example of a physical change would be if the milk was evaporated or frozen.
You taste lactic acid when the milk becomes sour. Acids, in general, sour.
Curd generally has a tangy and slightly sour taste due to the fermentation process that transforms milk into curd. Additionally, the taste can vary depending on the type of milk used and the fermentation time.
Curd is the coagulated part of a liquid, the part of milk which coagulates when it becomes sour.
The curd is the fat in the milk that sticks together. ------------------------------------------------------------------- I think it is the proteins rather than the fat that are responsible for the formation of curd - after all you can get fat free curd cheese.
A bacteria called lactobacilus converts lactose into Lactic acid thus making it sour. Lactic acid buildup due to bacterial activity causes the pH of the milk to drop. Once the pH drops below pH 4.6, the casein proteins coagulate and forms a curd. The curdling is due to the milk becoming sour.
Curd contains live bacteria that continue to ferment the milk sugars even after it has set. If the curd is not transferred to a cool place, the bacteria will continue to multiply and produce more lactic acid, causing the curd to become increasingly sour.
they put some kind of bacteria probably YEAST
Yes, transferring curd to a cooler place helps slow down the fermentation process and prevents the curd from becoming overly sour or developing off-flavors. It also helps maintain the desired texture of the curd.
You can tell when milk goes bad when it has a sour smell to it. It will start to curd and become chunky. At this point it is very bad to drink because it will make you sick. Try and read the use by date before you drink milk you are uncertain about.
Compare to curd, butter milk is good, provided you are not allergical. It help to digest and as intestine in typhoid are get weak, it is good to take in average qty. Also note that it should be fresh, so the cold trouble can be avoided.
Buttermilk is a cultured dairy product made by adding lactic acid bacteria to milk, giving it a tangy flavor. Sour milk is milk that has naturally soured due to the presence of bacteria, resulting in a more acidic taste. The main difference is that buttermilk is intentionally cultured, while sour milk occurs naturally through spoilage.
the sour milk stank