Food

What is it made of

How is it made

Which microbes are used

How are the microbes used

Yogurt

Milk, Lacking tobacillus Bulgaricus

And

Streptococcus

Thermophilus

Lacking tobacillus Bulgaricus

And

Streptococcus

Thermophilus

The species of bacteria used in yogurt are Streptococcus thermophilus and Lactobacillus bulgaricus. These species eat the sugars in milk. As the bacteria eat milk sugars, the bacteria produce something called lactic acid. Lactic acid makes milk proteins curdle. Thanks to the bacteria, the milk becomes thick yogurt. The lactic acid also gives yogurt a tart, tangy flavor.

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