Abstract
Kefir is a probiotic food that has historical origin in the Caucasus Mountains. Its most common form of presentation is that of gelatinous grains, which when inoculated in milk produces an acidified fermented that is slightly carbonated, commonly called kefir or kefir milk. Kefir grains are composed of different strains of microorganisms that include yeasts, acid-lactic and acid-acetic ba…