|
|
Laurel
(Laurus nobilis L.)
Bay leaves were considered holy and associated with Apollo in the
classic Greek era. Although the winners of the famous Olympic games,
held every four years beginning in 776 in Olympia in honour of Zeus,
were originally decorated with a wreath of olive twigs, the later
use of laurel wreaths is more known today. The change from olive to
laurel was due to the influence of the Pythian Games, which were conducted
in honour of Apollo in Delphi (Southern Greece), starting 582. Within
a decade after opening the Pythian Games to all Greeks, two more festivals
arose which were, in contrast, held every second year.
Much later, the Roman Emperors made use of the laurel wreath as a
symbol of the god Apollo; furthermore, bay leaves were a popular spice
in Roman cookery.
Today, bay leaves are a rather common flavouring in all Western countries;
they are used for soups, stews, sauces, pickles and sausages; several
fish dishes profit greatly from bay leaves. In contrast to the majority
of leave spices, bay leaves can be cooked for several time without
much aroma loss. Fresh or dried bay leaves frequently show up in bouquet
garni.
Fresh bay leaves are very strongly aromatic, but also quite bitter;
by an appropriate drying procedure, bitterness is significantly reduced,
and the flavour can even improve (cf. gale leaves, which resemble
bay leaves in several aspects). After manual plucking and sorting,
the leaves are quickly dried without exposure to sunlight. High-quality
bay leaves are easily recognized not only by their strong aroma, but
also by their bright green colour. A rule of thumb holds: The greener
the colour, the better the quality. Bay leaves cannot, however, be
stored as long as their tough texture might suggest, but should not
be kept more than one year after plucking. Overaged leaves have lost
their fragrance, show a brownish hue and taste mostly bitter.
The laurel fruits are less known, although they appear as part of
commercial spice mixtures. Because of their robust taste, they fit
best to tasty sauces and gravies; They are very good for venison (together
with juniper).
Used plant part
Leaves. Industrially, laurel oil is prepared from the fruits, which
may also be used as a spice.
Plant family
Lauraceae (laurel family).
Sensoric quality
Aromatic and slightly bitter. (see also zedoary on bitter spices).
Main constituents
The essential oil from the leaves (0.8 to 3%) contains mostly 1,8
cineol (50%); furthermore, eugenol, acetyl eugenol, methyl eugenol,
a- and ß-pinene, phellandrene, linalool, geraniol and terpineol
are found.
The dried fruits contain 0.6 to 10% of essential oil, depending on
provenance and storage conditions. Like the leaves, the aroma is mostly
due to terpenes (cineol, terpineol, a- and ß-pinene, citral),
but also cinnamic acid and its methyl ester are reported.
Origin
Probably Asia Minor. Today, the laurel tree grows all over the Mediterranean.
Turkey is one of the main exporters.
|