Lime
Lime
Lime
A lime (from French lime, from Arabic līma, from Persian līmū, "lemon")is a
hybrid citrus fruit, which is typically round, lime green, 3–6 centimetres (1.2–2.4 in)
in diameter, and contains acidic juice vesicles.
There are several species of citrus trees whose fruits are called limes, including
the Key lime (Citrus aurantifolia), Persian lime, kaffir lime, and desert lime. Limes are
a rich source of vitamin C, sour and are often used to accent the flavours of foods
and beverages. They are grown year-round. Plants with fruit called "limes" have
diverse genetic origins; limes do not form a monophyletic group.
The difficulty in identifying exactly which species of fruit are called lime in different
parts of the English-speaking world (and the same problem applies to homonyms in
other European languages) is increased by the botanical complexity of
the citrus genus itself, to which the majority of limes belong. Species of this genus
hybridise readily, and it is only recently that genetic studies have started to throw
light on the structure of the genus. The majority of cultivated species are in reality
hybrids, produced from the citron (Citrus medica), the mandarin orange (Citrus
reticulata), the pomelo (Citrus maxima) and in particular with many lime varieties,
the micrantha (Citrus micrantha).
Note that the tree species known in Britain as lime trees (Tilia sp.), called linden in
other dialects of English, are broadleaf temperate plants unrelated to the citrus fruits.
History
Although the precise origin is uncertain, wild limes are believed to have first grown
in Indonesia or Southeast Asia, and then were transported to the Mediterranean
region and north Africa around 1000 CE.
To prevent scurvy during the 19th century, British sailors were issued a daily
allowance of citrus, such as lemon, and later switched to lime. The use of citrus was
initially a closely guarded military secret, as scurvy was a common scourge of various
national navies, and the ability to remain at sea for lengthy periods without
contracting the disorder was a huge benefit for the military. The British sailor thus
acquired the nickname, "Limey" because of their usage of limes.
In 2016, global production of lemons and limes was 17.3 million tonnes, led
by India with 17% of the world total (table). Mexico and China were other major
producers.
Uses
Zesting a lime
Limes have higher contents of sugars and acids than lemons do.[2] Lime juice may be
squeezed from fresh limes, or purchased in bottles in both unsweetened and
sweetened varieties. Lime juice is used to make limeade, and as an ingredient
(typically as sour mix) in many cocktails.
Lime pickles are an integral part of Indian cuisine. South Indian cuisine is heavily
based on lime; having either lemon pickle or lime pickle is considered an essential
of Onam Sadhya.
In cooking, lime is valued both for the acidity of its juice and the floral aroma of
its zest. It is a common ingredient in
authentic Mexican, Vietnamese and Thai dishes. Lime soup is a traditional dish from
the Mexican state of Yucatan. It is also used for its pickling properties in ceviche.
Some guacamole recipes call for lime juice.
The use of dried limes (called black lime or loomi) as a flavouring is typical
of Persian cuisine and Iraqi cuisine, as well as in Persian Gulf-style baharat (a spice
mixture that is also called kabsa or kebsa).
Lime is an ingredient of many cuisines from India, and many varieties of pickles are
made, e.g. sweetened lime pickle, salted pickle, and lime chutney.
Key lime gives the character flavoring to the American dessert known as Key lime
pie. In Australia, desert lime is used for making marmalade.
Lime is an ingredient in several highball cocktails, often based on gin, such as gin
and tonic, the gimlet and the Rickey. Freshly squeezed lime juice is also considered a
key ingredient in margaritas, although sometimes lemon juice is substituted.
Lime extracts and lime essential oils are frequently used in perfumes, cleaning
products, and aromatherapy.
Carbohydrates 10.5 g
Sugars 1.7 g
Fat 0.2 g
Protein 0.7 g
Vitamins Quantity
%DV†
Thiamine (B1) 3%
0.03 mg
Riboflavin (B2) 2%
0.02 mg
Niacin (B3) 1%
0.2 mg
0.217 mg
Vitamin B6 4%
0.046 mg
Folate (B9) 2%
8 μg
Vitamin C 35%
29.1 mg
Minerals Quantity
%DV†
Calcium 3%
33 mg
Iron 5%
0.6 mg
Magnesium 2%
6 mg
Phosphorus 3%
18 mg
Potassium 2%
102 mg
Sodium 0%
2 mg
Other constituents Quantity
Water 88.3 g
Units
μg = micrograms • mg = milligrams
IU = International units
Raw limes are 88% water, 10% carbohydrates and less than 1% each
of fat and protein (table). Only vitamin C content at 35% of the Daily Value (DV) per
100 g serving is significant for nutrition, with other nutrients present in low DV
amounts (table). Lime juice contains slightly less citric acid than lemon juice (about
47 g/l), nearly twice the citric acid of grapefruit juice, and about five times the
amount of citric acid found in orange juice.
Phytochemicals
Dermatitis
When human skin is exposed to ultraviolet light after contact with lime peel or juice,
a reaction known as phytophotodermatitis can occur, which can cause darkening of
the skin, swelling or blistering. Bartenders handling limes and other citrus fruits
when preparing cocktails may develop phytophotodermatitis due to the high
concentration of furocoumarins and other phototoxic coumarins in limes. The main
coumarin in limes is limettin which has manifold higher content in peels than in pulp.
Persian limes have a higher content of coumarins and potentially greater
phototoxicity than do Key limes.