Scientists Say Leonardo Da Vinci, Sandro Botticelli and Other Famous Renaissance Artists Probably Mixed Oil Paint With Egg Yolk. This helped the paintings resist moisture and prevent wrinkling and yellowing, according to Science Alert..

Previously, the presence of protein has already been detected in the paintings of artists.. New discovery shows that the use of eggs in painting was deliberate.

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In a study, experts found that adding eggs to oil paintings " That is, this combination helps prevent paint deterioration..

“Our results show that even with a very small amount of egg yolk, a surprising change in the properties of oil paint can be achieved, demonstrating how useful this can be for artists,” said study author Ophelie Ranke from the Institute for Mechanical Engineering and Process Mechanics at the Karlsruhe Institute of Technology in Germany..

Scientists study the effect of adding egg yolk proteins. It turned out that they suppress the absorption of water by the paint in a humid environment.. While the paintings were drying, they also helped prevent wrinkling and yellowing, problems that many artists, including Da Vinci, had to deal with..

Previously, scientists have discovered a new type of fungus of the genus Blastobotrys on the famous self-portrait of Leonardo da Vinci.. Unlike mold, these fungi colonize dry substances such as house dust or paintings..