Sour milk
Sour milk is generally referred to the milk which has acquired a queer taste. This kind of thing is usually due to several kinds of reason. Milk can be turned sour by adding special kinds of acids into them. Another method of milk going sour is through the process of bacterial fermentation. One thing which should be noted here is that the milk which has turned sour due to bacterial fermentation is given the name of fermented milk.
Though milk which has turned sour is regarded as of being spoiled, there are however some places where sour milk has different kinds of purposes. At the current moment, sour milk is sometimes required to include in certain recipes. But it is advised in these circumstances that I use yogurt as a replacement to sour milk. Using sour milk different kinds of things can be produced. One of them is knwown as of Kefir.
Kefir if explained in laymen terms is a fermented milk drink. According to recorded history, the discovery of Kefir dates back to the Caucasus Mountains. There the shepherds would carry milk in leather pouches which they carried around with them. The result which occurred was that the milk soon turned into fizzy yogurt which was sour. In the past, there were no basic functionalities of the Kefir, but this all changed in 1908, when a famous biologist, Elie Metchnikoff, who stated in his studies that the Kefir was one of the biggest reason which could be attributed to the long lives of the people of the Caucasus lived.
One thing which I should mention here is the whole Kefir cannot be said to be a wonder drink to prolong life. Research has found out that the things present in the Kefir that can lengthen life of a person because of a few Kefir grains present in the fermented drink. Also, some other things which have been found in the research is the using the drink of fermented milk can have some kind of effect that is able to restore the youth of a person. But this is only possible if I consume Kefir not only as a side dish and other foods. Using Kefir means I would have to change my whole diet.
In the recent past, there has been yet another research which has stated because of the presence of some kind ingredient known as the LcS. Because of the fact that this LcS is known to augment with the natural Killer also known as the NK of our live cells immune system, the people who drank the fermented drink were shown to have maintained a healthy life and they were also protected from the different kind of diseases present in the world.
To cure a fermented milk product, the scientist at the Pasteur Institute tried their level best to eliminate all the bacteria to be found in the milk but the result was unsuccessful. But these days if such method was carried out then the elimination of the bacteria from sour milk is a very easy task.