The white lump contained signs of a bacteria that causes the infectious disease brucellosis
Univ. of Catania, Cairo Univ.
What may be the oldest known solid cheese has been found in an ancient Egyptian tomb.
Made from a mixture of cow milk and either sheep or goat milk, the cheese filled a broken clay jar unearthed from a 13th century B.C. tomb for Ptahmes, the mayor of the ancient city of Memphis, researchers report online July 25 in Analytical Chemistry.
Chemist Enrico Greco, who did the work while at the University of Catania in Italy, and colleagues used mass spectrometry to analyze the antique cheese — now a white, soapy lump weighing “several hundred grams.” Besides milk and whey proteins, the cheese contained remnants of bacteria that cause an infection called brucellosis, adding to evidence that ancient Egyptians may have grappled with the disease, Greco says.
Cheese making predates the new find by thousands of years, but preserved cheese is hard to come by (SN: 1/26/13, p. 16). Archaeologists found older curds draped around the necks of Bronze Age mummies in China, a different group of researchers reported in 2014 in the Journal of Archaeological Science. “There are other samples of dairy products in the literature, but not solid cheeses in the strict sense,” Greco says.
He says he did not sniff the cheese, but given its degraded state it is unlikely to have an odor, pleasant or not.
E. Greco et al. Proteomic analyses on an ancient Egyptian cheese and biomolecular evidence of brucellosis. Analytical Chemistry. Published online July 25, 2018. doi: 10.1021/acs.analchem.8b02535.
Y. Yang et al. Proteomics evidence for kefir dairy in early Bronze Age China. Journal of Archaeological Science. Vol. 45, May 2014, p. 178. doi: 10.1016/j.jas.2014.02.005.
B. Bower. Pots bear oldest signs of cheese making. Science News. Vol. 183, January 26, 2013, p. 16.