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Onion
Allium cepa

Kalonji (Onion seeds)
A Turkish legend says that when the Devil was cast out
from Paradise and first set foot upon the Earth, on the spot where he
placed his right foot grew the onion and, on
that touched by his left, garlic.
In fact the onion has become
so basic a commodity world-wide that nowadays it is not known to have
a wild form, making the task of tracing its lineage and origin back
to a starting point virtually impossible, although the presence of a
wild and distant relative in Central Asia lead some to believe that
this may have been the starting point for Allium cepa too.
There are over 500 members of the allium family, including: Allium ascalonicum,
the shallot, which has become a virtual cornerstone of Modern
British and French Haute Cuisine.
The ancient Greeks were familiar with the shallot,
or askolonion as they knew it, which, according to Pliny
(1st century AD), was so named because it came from Ashkelon in what
is now southern Israel. It is from this original Greek word that most
of the other names for modern onions are derived, such as
scallion which has survived, particularly in the United
States, as an alternate name for the spring onion. It is differs from
A. cepa, being an aggregate onion, growing
in a cluster formation which spreads the shallot by a process of division.
Other onions that do this are
the Japanese onion and the potato onion.
Allium porrum, the leek,
whose common name is derived from the Saxon leac which they
assigned to all the members of the family, such as gar-leac and
brade-leac. It is one of the national emblems of Wales, and, although
the real reason for this may have been lost in the mists of time, a
romantic explanation for this is that it was worn as an identifying
bonnet badge by victorious Welsh warriors in a memorable battle
against the Saxons in the 7th century. Whether or not this is true,
the Celt and Gallic races have developed a true affinity with the
leek, producing many classic dishes featuring them, such as Welsh
mutton cawl, Cock-a-leekie, Potage Parmentier and Poor
Mans Asparagus, where immature leeks are served cold and
dressed with vinaigrette, parsley and chopped, hard-boiled egg. The leek
was popular with the ancients. Leeks are featured in Egyptian tomb
paintings and, according to Herodotus, were fed, along with garlic
and radishes to the slave force employed to build the Great Pyramid.
Greek and Roman texts, such as the cookery book
written by Apicius, featured it as a
vegetable in its own right. The Roman emperor, Nero
was said to have been very fond of leeks, maintaining that they
improved the quality of his singing voice, of which he was already
inordinately proud. He is said to have eaten so many that his people
gave him the nickname Porrophagus, leek-eater.
Allium fistulosium, the Oriental
onion or Welsh onion is another cluster onion which resembles
a large ridged spring onion. Despite its English common name, it does
not actually come from Wales but from China. Welsh was a
prefix which meant foreign in Old English and is also the
origin of the Wal in walnut, or foreign nut.
According to Pliny both the
onion and garlic were deified in Ancient Egypt, a point repeated by Mrs
Beeton in her famous Book of Household Management and Juvenal
said that Egypt was a country where onions were
adored and leeks were gods. There does seem
to be evidence that the Egyptians swore oaths by both and
archaeologists have found funerary offerings in Egyptian tombs. The
onion was an important part of the staple diet of Mesopotamia, eaten
with bread by the masses. Accounts from the 3rd Dynasty of Ur (early
2nd millennium BC) list bread and onions as a daily ration and in a
chronicle from 2,100BC, Ur-Nammu of Ur
recorded that he saved his garden of leeks
and onions by building a temple to Nannar.
Onions were also listed as
being grown in the Gardens of King Badalan II
of Babylon (8th century BC).
In Ancient Greece and Rome the onion was not as highly
regarded as its cousin the leek as they were regarded as poor
mans food, although Theophrastus
(372-287BC) mentions several varieties of onion and garlic,
indicating enough demand for them to be in daily use in the Greece of
his time. He also mentions that when pounded the allia makes a foamy
dressing - the forerunner to aioli, perhaps? Apicius
used garlic and onion very sparingly in his recipes, hardly
surprising, as he tended to concentrate mainly on the less
humble ingredients. Horace, too, reinforced the image of
the onion as being strictly for the lower
classes, when he included it in his economical diet.
Ayurveda, the ancient Indian
art of dietetics and medicine doesnt use the onion
much in treatment, although it does note that the onion
is stimulating, diuretic and an expectorant. Certain sects in
India, such as Jains and Hindu Brahmins, are forbidden to eat it, one
of the reasons being that it is believed to inflame the baser passions.
Dr Andrew Boorde(1490?-1549),
traveller, writer and disgraced cleric concurred with this and noted
in his book, A Dyetary of Helth, that Onyons doth
promote a man to veneryous actes, and to sompnolence. The
good doctors advice in this region is not to be dismissed
lightly, as this unfrocked suffragan bishop Chichester was jailed for
keeping three whores in his rooms at Winchester.
The onion has been cultivated
for over 6,000 years and as well as its culinary uses, this bulb has
been used by healers world-wide to cure almost every ailment. It has
been used against infections, as an effective diuretic, heart tonic,
contraceptive, aphrodisiac, expectorant, as a treatment for diabetes
and as a decongestant (one of my grandmother's favourite cold-cures
was a boiled onion, tied around the neck in an old sock). Far from
laughing these claims off, modern science is looking at the onion
very seriously. In 1989, a Chinese study found that people who ate
the highest amounts of allium vegetables in their diet, i.e.. onions,
shallots, leeks, chives, garlic etc., had the lowest rate of stomach
cancer. An independent study carried out in the United States at
around the same time would seem to reinforce this theory.
The onion is rich in
flavenoids, one of which, quercetin, is currently being studied for
its apparent ability to deactivate carcinogens and tumour promoters.
Those onions that are highest in these
flavenoids are red and yellow onions and shallot.
A separate investigation by Eric
Block PH.D. of the State University of New York, uncovered a
sulphur compound in onion that can actually prevent the biochemical
chain of events that lead to inflammatory reactions and asthma. Well
done, Gran!
The ancient physicians used onion
to treat diabetes and, once again, modern studies have only served to
proved them right, as recently it has been discovered that onion
does indeed play a part in reducing blood sugar levels. Cooked onions
are good for the cardiovascular system, taking just about 1
tablespoon to reverse the tendency for the blood to clot after a
fatty meal. It is now known to reduce high blood sugar levels and to
promote an increase in good cholesterol levels in the
blood. In fact, just half a raw onion a day will boost it by 30%.
Pasteur in the mid
nineteenth century, declared it anti-bacterial and its essences have
been proved to kill harmful bacteria, including E-coli and
salmonella. One experiment also found that chewing raw onion
for 3-8 minutes made the lining of the mouth sterile.
100g of raw onion equals
150kcalories, is 89% water, and contains 1.2g protein, 0.2g fat, 7.9g
carbohydrates, 1.4g fibre, 25mg calcium, 0.3mg iron, 3mg sodium, 2mg
vitamin A, 0.13mg Thiamin and 5mg vitamin C. |