'Old Masters' such as Leonardo da Vinci, Sandro Botticelli and Rembrandt may have used proteins, especially egg yolk, in their oil paintings, according to a new study.
Botticelli and Rembrandt may have used proteins, especially egg yolk, in their oil paintings, according toTrace quantities of protein residue have long been detected in classic oil paintings, though they were often ascribed to contamination. ANature Communications found the inclusion was likely intentional — and sheds light on the technical knowledge of the Old Masters, the most skilled European painters of the 16th, 17th, or early 18th century, and the way they prepared their paints.
"The addition of egg yolk is beneficial because it can tune the properties of these paints in a drastic way," Ranquet said,"For example by showing aging differently: It takes a longer time for the paint to oxidize, because of the antioxidants contained in the yolk." "The Madonna of the Carnation," on display at the Alte Pinakothek in Munich, Germany, is one of Leonardo da Vinci's earliest paintings. Wrinkling of the oil paint is evident on the faces.A direct evidence of the effect of egg yolk in oil paint, or lack thereof, can be seen in Leonardo da Vinci's"Madonna of the Carnation,"
the study suggested. Ranquet hopes that these preliminary findings might attract more curiosity toward this understudied topic.Maria Perla Colombini, a professor of analytical chemistry at the University of Pisa in Italy, who was not involved in the study, agreed."This exciting paper provides a new scenario for the understanding of old painting techniques," she said in an email.
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