Worker walks past fermentation tanks in a yoghurt plant. Yoghurt is a fermented dairy product produced by adding bacteria to milk. Two bacteria that are commonly used in yoghurt-making are Streptococcus salivarius thermophilus and Lactobacillus bulgaricus. People have been making yoghurt for over 4, 000 years. In addition to yoghurt, bacteria are also used in the making of cheeses, sourdough bread and sour cream. | |
Licence : | Droits gérés |
Crédit : | Science Photo Library / Matulavich, Peter |
Model Release : | Le droit n'est pas encore disponible. Merci de nous contacter avant utilisation. |
Property release : | Non requis |
Durée : | 14 Secondes |
Aspect ratio : | 4/3 |
Restrictions : | - |