Interior Of A Kefir Grain, Sem
by Scimat
Title
Interior Of A Kefir Grain, Sem
Artist
Scimat
Medium
Photograph - Photograph
Description
Color-enhanced SEM of a freeze-fractured kefir grain, showing bacteria in the interior. Kefir grains are a yeast/bacterial fermentation starter used to make kefir, a fermented milk beverage. Lactic acid bacteria produce lactic acid from the milk sugar - lactose. The acid coagulates the milk. Yeasts produce carbon dioxide and a low concentration of ethanol (alcohol). Kefir thus tastes somewhat like an acidic carbonated drink. Image width 13.85 micrometers. Magnification 7,220x if the image is printed 10 cm wide.
Uploaded
April 13th, 2016
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