Piperine is extracted from black pepper using dichloromethane. Aqueous hydrotropes can be used in the extraction to result in high yield and selectivity. The amount of piperine varies from 1â2% in long pepper, to 5â10% in commercial white and black peppers.
The United States Secretary of Defense is the head of the Department of Defense. The current Secretary of Defense is Chuck Hagel, who was nominated by President Barack H. Obama and approved by the US Senate on February 27, 2013.
Eric David Hargan (born June 3, 1968) is an American lawyer and government official serving as the current United States Deputy Secretary of Health and Human Services since October 6, 2017. A member of the Republican Party, Hargan previously acted in this role in 2007 under the George W. Bush administration. On October 10, 2017, President Donald Trump appointed Hargan as acting United States Secretary of Health and Human Services.