Infrared Analysis of Piperine in Black Pepper
The infrared (IR) region of electromagnetic radiation extends from #181;m (the upper end of the Grind 10 g black pepper to a fine powder with a mortar and pestle. 2. Extract the finely ground pepper with 200 mL 95% ethanol in a soxhlet extraction apparatus for 4 hours. (The ground pepper is placed in the thimble and the ethanol in the