Lemon

lemon

The abused fruit in my kitchen! I use lemon very often for drinks like caperinha and gin tonic. In cooking, I use its zest and juice almost all the time. I always make sure I have lemon all the time.. It’s a must!

Know more about lemon:
The lemon, Citrus × limon, is a citrus tree, a hybrid of cultivated origin. The fruit are cultivated primarily for their juice, though the pulp and rind (zest) are also used, primarily in cooking or mixing. Lemon juice is about 5% citric acid, which gives lemons a sour taste.
This is a small tree, grows to 6 m (20 ft) but usually smaller. The branches are thorny, and form an open crown. The leaves are elliptical-acuminate. Flowers are violet and streaked in the interior and white on the outside. On a lemon tree, flowers and ripe fruits can be found at the same time.
Both lemons and limes are regularly served as lemonade (natural lemon with water and sugar) or limeade, its equivalent, or as a garnish for drinks such as iced tea or a soft drink, with a slice either inside or on the rim of the glass. Only lemons, however, are used in the Italian liqueur Limoncello. A wedge of lemon is also often used to add flavor to water.
Lemon juice is typically squeezed onto fish dishes in restaurants in the United Kingdom and other countries; the acidic juice neutralizes the taste of amines in fish. Lemon juice is also sprinkled on cut fruit, such as apples, to prevent oxidation which would otherwise rapidly darken the fruit, making it less appetizing. Some people like to eat lemons as fruit (however, water should be consumed afterwards, to wash the citric acid and sugar from the teeth, which might otherwise promote tooth decay).
A common school experiment involving lemons is to attach electrodes and use them as a battery to power a light. The electricity generated may also be used to power a motor to move the lemons (on wheels) like a car or truck. These experiments also work with other fruit and with potatoes.
Propagation is by grafting as the stock is vulnerable to cankers and dry rot.
Lemon juice contains approximately 500 milligrams of vitamin C and 50 grams of citric acid per liter.
In recent times, the Australian bush food Lemon Myrtle has become a popular alternative to lemons. The crushed and dried leaves and edible essential oils have a strong, sweet lemon taste, but contain no citric acid. Lemon Myrtle is popular in foods that curdle with lemon juice (such as cheesecakes and ice-cream).
Drinking lemon juice with warm water may clean out your gallbladder, detox your system and help you lose weight.

link to source: http://en.wikipedia.org/wiki/Lemon