<P> Orange juice is the liquid extract of the orange tree fruit, produced by squeezing oranges . It comes in several different varieties, including blood orange, navel oranges, valencia orange, clementine, and tangerine . As well as variations in oranges used, some varieties include differing amounts of juice vesicles, known as "pulp" in American English, and "juicy bits" in British English . These vesicles contain the juice of the orange and can be left in or removed during the manufacturing process . How juicy these vesicles are depend upon many factors, such as species, variety, and season . In American English, the beverage name is often abbreviated as "OJ". </P> <P> Due to the importance of oranges to the economy of the state of Florida, "the juice obtained from mature oranges of the species Citrus sinensis and hybrids thereof" was adopted as the official beverage of Florida in 1967 . Orange juice (along with grapefruit juice) is offered to every visitor at each of the state's five Florida Welcome Centers . Commercial orange juice with a long shelf life is made by pasteurizing the juice and removing the oxygen from it . This removes much of the taste, necessitating the later addition of a flavor pack, generally made from orange products . Additionally, some juice is further processed by drying and later rehydrating the juice, or by concentrating the juice and later adding water to the concentrate . </P> <P> The health value of orange juice is debatable: it has a high concentration of vitamin C, but also a very high concentration of simple sugars, comparable to soft drinks . As a result, some government nutritional advice has been adjusted to encourage substitution of orange juice with raw fruit, which is digested more slowly, and limit daily consumption . </P> <P> During World War II, American soldiers rejected vitamin C - packed lemon crystals because of their unappetizing taste . Thus the government searched for a food that would fulfill the nutritional needs of the soldiers, have a desirable taste, and prevent diseases such as scurvy in a transportable vitamin C product . The federal government, the Florida department of Citrus, along with a group of scientists desired to develop a superior product to canned orange juice (which was the current orange juice on the market in the 1940s) and developed frozen concentrated orange juice . Unfortunately frozen concentrated orange juice was developed three years after the war had ended . </P>

Orange juice is the center of the world