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Piperine is generally consumed as a component of black pepper. Adding black pepper to cooked foods, raw foods, and fresh juices is a good way to increase nutrient absorption. Black pepper spices up almost all foods, even snacks like popcorn.
isolation of piperine. place 15g (1) of ... ground black pepper in a 250mL round-bottomed flask, add 150mL of 95% ethanol and 5 boiling chips (2), and heat at reflux for 2h. filter the mixture by suction filtration and then concentrate the filtrate to a. volume of 10-15mL by simple distillation or by use of a rotary evaporator.