Dr. Kimberly Cossey
Caffeine is a central nervous system stimulant that increases one’s metabolic rate, alertness and motivation upon consumption. Consumer curiosity sparked the investigation of the caffeine content found in locally brewed Blackbird Coffee. A procedure involving liquid-liquid extraction with dichloromethane was developed to determine the amount of caffeine in store-bought, brewed caffeinated and decaffeinated coffee. The caffeine amounts recovered were reproducible, thus the method was proved reliable and was implemented for the extraction of caffeine from Blackbird decaffeinated coffee. A single serving was determined to contain an average of 39 ± 12 mg of caffeine which is approximately 20% of the content in a small cup of regular caffeinated Blackbird coffee.
"The Determination of Caffeine Content in Decaffeinated Blackbird Coffee,"
Vol. 17, Article 1.
Available at: http://kb.gcsu.edu/thecorinthian/vol17/iss1/1