Coca-Cola formula version of Coca-Cola syrup contains kola nut extract; originally included for its caffeine content, modern Coca-Cola uses caffeine citrate produced by the decaffeination of coffee. The primary taste of Coca-Cola is thought to come from vanilla and cinnamon, with trace amounts of essential oils, and spices such as nutmeg. A 2015 study identified and measured 58 aroma compounds in common colas, confirming significant amounts of compounds corresponding to cinnamon, vanilla, nutmeg, orange and lemon essential oils in Coca Cola. During the 1980s, most U.S. Coca-Cola bottlers switched their primary sweetening ingredient from cane sugar (sucrose) to the cheaper high-fructose corn
Baratunde A. Cola involved in the founding of the NanoEngineered Systems and Transport Lab and Heat Lab at Georgia Institute of Technology, where he is an associate professor in the George W. Woodruff School of Mechanical Engineering and the School of Materials Science and Engineering. For 2015–6 he was a Martin Luther King Jr. visiting professor in the Department of Mechanical Engineering at the Massachusetts Institute of Technology. Specilizing in carbon nanotube technology, Cola led the team who demonstrated the first optical rectenna. In addition he is involved in research into the development of thermo-electrochemical calls that produce electricity from waste heat. Cola