After 50 years, how we remember the legacy of President John F. Kennedy. John F. Kennedy takes a stroll with his wife, Jacqueline Kennedy, and their daughter, Caroline, at Hyannis Port, Mass., in this 1960 photo. The Kennedy image, the mystique that attracts tourists and historians alike, did not begin with his presidency and is in no danger of ending 50 years after his death. (AP)
Textured vegetable protein was invented by the agricultural commodities and food processing company Archer Daniels Midland in the 1960s; the company owns the TVP name as a registered trademark. Archer Daniels Midland had developed a textured soy protein isolate made with an extruder in the shape of rods or tubes.
Potentially Hazardous Food is a term used by food safety organizations to classify foods that require time-temperature control to keep them safe for human consumption. A PHF is a food that: 1  Contains moisture-usually regarded as a water activity greater than 0.85. 2  Contains protein. 3  Is neutral to slightly acidic-typically having a pH between 4.6 and 7.5.