Avidin. The extraordinary affinity of avidin for biotin allows biotin-containing molecules in a complex mixture to be specifically bound to avidin. Avidin is a glycoprotein found in the egg white and tissues of birds, reptiles and amphibia.It contains four identical subunits having a combined mass of 67 to 68kDa.n contrast to avidin, though, streptavidin is not glycosylated, which makes the protein less-prone to nonspecific binding in IHC applications. Pierce products use a recombinant form of streptavidin, having a mass of 53kDa and a near-neutral pI.
The Story Behind Chipotle Mexican Grill. Franchises. Chipotle Mexican Grill was founded by Steve Ells in 1993 and based in Denver, Colorado. The name Chipotle derives from the Mexican Spanish name for a smoked, dried jalapeÃ±o chili pepper.
The spicy, smoky flavor of chipotle powder comes from grinding up a whole dried chipotle chili. Created by smoking jalapeno peppers until they reach a reddish-brown color, chipotles make up nearly 20 percent of the jalapenos grown in Mexico.ackground. Chipotle powder is made from grinding whole chipotle peppers, which were thought to have originated with the Aztecs in what is now northern Mexico City. The Aztecs may have smoked the jalapenos to keep them from rotting and to make them easier to dry.