Scientists Bake Sourdough Bread Using 5,300-Year-Old Yeast from Ötzi the Iceman

In a remarkable feat of scientific exploration, researchers have recreated sourdough bread using yeasts discovered within the 5,300-year-old mummy known as Ötzi the Iceman. The ancient yeasts, preserved in the mummy's gut, have been revived and utilized to bake a loaf of sourdough, offering a tangible connection to the past.

The groundbreaking study, published in the journal Microbiome, involved identifying not only gut bacteria from Ötzi's time but also microorganisms that survived the glacial environment. Scientists isolated yeast species capable of withstanding sub-zero temperatures from Ötzi's intestines, skin, and bodily fluids. After initial unsuccessful attempts, the team dedicated approximately three months to cultivating these ancient yeasts, ultimately succeeding in producing what they describe as a "very good" sourdough bread.

Lead researcher Mohamed Sarhan, a microbiologist, emphasized Ötzi's significance beyond a static relic, calling him a "dynamic ecosystem." The research team is now looking to the next phase of their project: brewing beer using the same ancient yeast strains. Additionally, their analysis of Ötzi's gut microbiota suggests he consumed a diet rich in fiber, providing further insights into the life of this prehistoric individual.

“

Ötzi is not a biologically static remnant, but a dynamic ecosystem.