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.
Donald Trump picks Gen. John Kelly for Department of Homeland Security secretary. Donald Trump is tapping Gen. John Kelly to run the Department of Homeland Security, CBS News confirms. The final request and acceptance, sources told CBSâ Major Garrett, occurred while Kelly was traveling in Europe. His pick for DHS secretary will be announced by the transition staff in the coming days. Kelly is the third general tapped by the president-elect, joining Gen. James Mattis, Mr. Trumpâs pick to become the next secretary of Defense, and Lt. Gen. Michael Flynn, Mr. Trumpâs incoming national security advisor. Like Mattis, Kelly is a Marine with a reputation for bluntness.