Lemon an acid fruit that is botanically a many-seeded pale yellow oblong berry produced by a small thorny citrus tree (Citrus limon) and that has a rind from which an aromatic oil is extracted a tree that bears lemons one (as an automobile) that is unsatisfactory or defective See lemon defined for English-language learners See lemon defined for kids
The true lemon tree reaches 10 to 20 ft (3-6 m) in height and usually has sharp thorns on the twigs. The alternate leaves, reddish when young, become dark-green above, light-green below; are oblong, elliptic or long-ovate, 2 1/2 to 4 1/2 in (6.25-11.25 cm) long, finely toothed, with slender wings on the petioles. The mildly fragrant flowers may be solitary or there may be 2 or more clustered in the leaf axils. Buds are reddish; the opened flowers have 4 or 5 petals 3/4 in (2 cm) long, white on the upper surface (inside), purplish beneath (outside), and 20-40 more or less united stamens with yellow anthers. The fruit is oval with a nipple-like protuberance at the apex; 2 3/4 to 4 3/4 in (7 -12 cm) long; the peel is usually light-yellow though some lemons are variegated with longitudinal stripes of green and yellow or white; it is aromatic, dotted with oil glands; 1/4 to 3/8 in (6-10 mm) thick; pulp is pale-yellow, in 8 to 10 segments, juicy, acid. Some fruits are seedless, most have a few seeds, elliptic or ovate, pointed, smooth, 3/8 in (9.5 mm) long, white inside.
Juicy, acidic, yet flavorful, lemon is one of the most widely used citrus fruits worldwide. Lime is a close relative, comparitively smaller and possesses thinner skin.
Lemons are packed with numerous health benefiting nutrients. The fruit is less in calories, carrying just 29 calories per 100 g, the value being one of the lowest for the citrus fruits group.
They contains zero saturated fats or cholesterol, but are good source of dietary fiber (7.36% of RDA). Lemon is one of the very low glycemic fruits.
lemon's acidic taste is because of citric acid. Citric acid constitutes up to 8% in its juice. Citric acid is a natural preservative, aids in smooth digestion, and helps dissolve kidney stones.
Lemons, like other fellow citrus fruits, are an excellent source of vitamin C (ascorbic acid); provides about 88% of daily recommended intake. Ascorbic acid is a powerful water soluble natural anti-oxidant. This vitamin is helpful in preventing scurvy. Besides, consumption of foods rich in vitamin-C helps the human body develop resistance against infectious agents and scavenge harmful, pro-inflammatory free radicals from the blood.
Lemons, like oranges, contain a variety of phytochemicals. Hesperetin, naringin, and naringenin are flavonoid glycosides commonly found in citrus fruits. Naringenin is found to have bio-active effect on human health as antioxidant, free radical scavenger, anti-inflammatory, and immune system modulator. This substance has also been shown to reduce oxidant injury to DNA in the cells in-vitro studies.
Kerala
Rajasthan
Mahrashtra
Himalayan foothills of North-East India.
he most ideal conditions are a warm and humid climate with plenty of sunshine and rainfall of 250-280 cm per annum, uniformly distributed. Because of its more or less continuous state of growth, the lemon is more sensitive to cold than the orange and less able to recover from cold injury. The tree is defoliated at 22º to 24º F (-5.56º-4.44º C). A temperature drop to 20º F (-6.67º C) will severely damage the wood unless there has been a fortnight of near-freezing weather to slow down growth. Flowers and young fruits are killed by 29º F (-1.67º C) and nearly mature fruits are badly damaged below 28º F (-2.22º C). On the other hand, the lemon attains best quality in coastal areas with summers too cool for proper ripening of oranges and grapefruit