2007-03-23 04:18:33 · 9 answers · asked by soburrr12 4 in Science & Mathematics ➔ Medicine
Yoghurt is made by introducing specific bacteria into milk, which is fermented under controlled temperature and environmental conditions, especially in industrial production. The bacteria ingest natural milk sugars and release lactic acid as a waste product. The increased acidity causes milk proteins to tangle into a solid mass (curd, denature). The increased acidity (pH=4–5) also prevents the proliferation of potentially pathogenic bacteria. In the U.S., to be named yoghurt, the product must contain the bacteria Streptococcus salivarius subsp. thermophilus and Lactobacillus delbrueckii subsp. bulgaricus. Often these two are co-cultured with other lactic acid bacteria for taste or health effects (probiotics). These include L. acidophilus, Lactobacillus casei and Bifidobacterium species.
2007-03-23 04:30:41 · answer #1 · answered by Irene Soh 3 · 1⤊ 0⤋
Yogurt has been around for who knows how long. It is a cousin of sour cream and all cheeses - in that a beneficent (good) bacteria is used to convert ordinary milk into a slight different food which people like. Bacteria (called yeast) are also used to convert grapes to wine and flour to bread.
The bacteria used for yogurt is called acidolphus. One of the benefits of yogurt is that is easly digested by people who have alergies to regular milk. The acidolphus bacteria has done part of the digestion (conversion) already.
Many people think it is wise to eat yogurt after they've had to take antibiotics. The antibiotics tend to kill the essential good bacteria in your digestic tract. The live bacteria helps restore them.
2007-03-23 04:27:51 · answer #2 · answered by p v 4 · 1⤊ 0⤋
There is some yogurt available that has been pasteurized in order to extend its shelf life. The bacteria that are used to make yogurt also occur naturally in your gut and on parts of your body I would rather not discuss. When you eat yogurt you are innoculating yourself with a healthy population of friendly bacteria. This tends to displace less useful organisms.
2007-03-23 04:33:15 · answer #3 · answered by datamonkey0031 2 · 1⤊ 0⤋
Because they are needed in the process of creating yogurt. The bacteria ferment lactic acid in milk, which helps create yogurts gel like consistency and tangy taste.
2007-03-23 04:24:50 · answer #4 · answered by swilliamrex 3 · 1⤊ 0⤋
The live bacteria is how yogurt is made, and it is good bacteria, important to intestinal health.
2007-03-23 04:22:33 · answer #5 · answered by smartypants909 7 · 0⤊ 0⤋
without bacteria there's not yogurt. Yogurt is nothing else than bacteria fermented milk
2007-03-23 04:22:26 · answer #6 · answered by piri82 3 · 0⤊ 0⤋
yogurt is bacteria
2007-03-23 04:26:12 · answer #7 · answered by Matt T 3 · 0⤊ 0⤋
To make it tastier! The bacteria in yoghurt make it yoghurt (instead of milk that's just gone bad.) They are beneficial for your GI tract (your bowels/intestines).
2007-03-23 04:22:50 · answer #8 · answered by Cobalt 4 · 0⤊ 0⤋
Cuz its delicious!!
2007-03-23 04:28:07 · answer #9 · answered by Nickle 2 · 0⤊ 0⤋