The lemon (Citrus × limon) is a small evergreen tree native to Asia, and the tree's ellipsoidal yellow fruit. The fruit is used for culinary and non-culinary purposes throughout the world, primarily for its juice, though the pulp and rind (zest) are also used in cooking and baking. The juice of the lemon is about 5% to 6% citric acid, which gives lemons a sour taste. The distinctive sour taste of lemon juice makes it a key ingredient in drinks and foods such as lemonade.
The origin of the lemon is a mystery, though it is thought that lemons first grew in Southern India, northern Burma, and China. A study of the genetic origin of the lemon reported that it is a hybrid between sour orange and citron.
Lemons were known to the Jews of Jerusalem, who, according to Josephus, pelted an errant high priest with them during a festival in the 90s BC, although Jewish tradition maintains that this was done with citrons, not lemons. They entered Europe... Read more