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Kefir

Kefir

B250/1669

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Credit

SCIMAT / SCIENCE PHOTO LIBRARY SCIMAT / SCIENCE PHOTO LIBRARY

Caption

Enhanced scanning electron microscopy (SEM) of four yeast cells in the body of kefir, a creamy drink made of fermented cow's milk (Magnification 3900x). Microorganisms, consisting of bacteria and yeasts, metabolize the milk sugar (lactose) and produce lactic acid, which coagulates the milk. The yeasts provide carbon dioxide, which produces a small amount of alcohol in the kefir.

Release details

Model release not required. Property release not required.

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