Robert Chesebrough Robert Chesebrough Robert Augustus Chesebrough, (January 9, 1837 – September 8, 1933) was an American chemist. He discovered petroleum jelly which he marketed as Vaseline and he founded the Chesebrough Manufacturing Company. Born in London to American parents, he was raised in New York City. Chesebrough began his career as a chemist clarifying kerosene from the oil of sperm whales. The discovery of petroleum in Titusville, Pennsylvania, rendered his job obsolete, so he traveled to Titusville to research what new materials might be created from the new fuel. This led to his discovery of petroleum jelly, which he trade-named as
Major royal jelly protein Major royal jelly protein Major royal jelly proteins (MRJPs) are a family of proteins secreted by honey bee. The family consists of nine proteins, of which MRJP1 (also called royalactin), MRJP2, MRJP3, MRJP4, and MRJP5 are present in the royal jelly secreted by worker bees. MRJP1 is the most abundant, and largest in volume. The five proteins constitute 82-90% of the total proteins in a royal jelly. Royal jelly is a nutrient-rich mixture of vitamins, sugars, fats, proteins and enzymes. It is used for feeding the larvae. Royal jelly has been used in traditional medicine since ancient times, and the