Scientists find yeast in frozen mummy's guts, use it to make sourdough bread

Scientists find yeast in ancient Iceman's guts -- and make bread

Eurac Research cultured four yeast species from 5,300-year-old Ötzi remains; one strain produced functional sourdough, revealing active microbiomes in frozen mummies. The organism's phenol-degrading capability signals biotech applications for environmental cleanup and industrial fermentation.