Don't blame it on the sulfite

Researchers may have identified the culprit in wine that causes headaches, a stuffy nose, skin rash and other allergic responses in some people. Almost one in ten wine drinkers suffer allergy symptoms caused by their favorite tipple but just one percent respond adversely the sulfite additives, the remainder suffer because of a previously unknown component of wine. The team, led by Giuseppe Palmisano of University of Southern Denmark in Odense, has now identified 28 glycoproteins in Italian wine that could be to blame. The discovery opens to door to development of wine-making processes that minimize formation of the culprit glycoproteins and offer consumers low-allergenic wines.