Surface-Enhanced Raman Spectroscopy for Rapid Screening of Cinnamon Essential Oils

Cinnamon essential oil is used in food flavoring, food preservation, and for complementary medicine. The most common types of cinnamon used in essential oils are true cinnamon ( Cinnamomum verum) and cassia cinnamon ( Cinnamomum cassia). True cinnamon is commonly adulterated with cassia cinnamon because it is cheaper. However, cassia cinnamon contains higher concentrations of coumarin which has been shown to have adverse health effects. There is...