Scientists have sequenced DNA from 3,600-year-old cheese, the oldest in the archaeological record. The intact cheese was found with mummified remains in China.
Bronze Age desert dwellers unearthed from graves in what’s now northwest China were buried with cheese scattered on their heads and necks — perhaps as a snack packed for the afterlife. A decade after the dairy discovery on strikingly intact remains mummified by the Taklamakan Desert’s arid conditions, scientists have extracted and sequenced DNA from the 3,600-year-old cheese, the oldest in the archaeological record.
Evolution of probiotic bacteria Fu’s team discovered that the three cheese samples from the graves contained bacterial and fungal species, including Lactobacillus kefiranofaciens and Pichia kudriavzevii, respectively, both commonly found in present-day kefir grains. The grains are a mix of probiotic bacteriaand yeast that ferment milk into kefir cheese.
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