Cinnamon (
Cinnamomum verum, synonym
C. zeylanicum) is a small
evergreen tree belonging to the family
Lauraceae, native to
Sri Lanka, or the spice obtained from the tree's bark. It is often confused with
other similar species and the similar spices derived from them, such as
Cassia and
Cinnamomum burmannii, which are often called
cinnamon too. Cinnamon lowers the rate of cellular respiration in yeast. Cinnamon bark is widely used as a
spice. It is principally employed in cookery as a condiment and flavoring material. It is used in the preparation of
chocolate, especially in
Mexico, which is the main importer of true cinnamon. It is also used in the preparation of some kinds of
desserts, such as
apple pie,
donuts and
cinnamon buns as well as spicy
candies,
tea,
hot cocoa, and
liqueurs. True cinnamon, rather than
cassia, is more suitable for use in sweet dishes. In the
Middle East, it is often used in savory dishes of chicken and lamb. In the United States, cinnamon and sugar are often used to flavor
cereals, bread-based dishes, and
fruits, especially
apples; a
cinnamon-sugar mixture is even sold separately for such purposes. Cinnamon can also be used in
pickling. Cinnamon bark is one of the few spices that can be consumed directly. Cinnamon powder has long been an important spice in
Persian cuisine, used in a variety of thick soups, drinks, and sweets. It is often mixed with
rosewater or other spices to make a cinnamon-based curry powder for stews or just sprinkled on sweet treats.
Its flavor is due to an aromatic
essential oil that makes up 0.5% to 1% of its composition. This oil is prepared by roughly pounding the bark,
macerating it in seawater, and then quickly
distilling the whole. It is of a golden-yellow color, with the characteristic odor of cinnamon and a very hot aromatic taste. The pungent
taste and
scent come from cinnamic
aldehyde or
cinnamaldehyde (about 60 % of the bark oil) and, by the absorption of
oxygen as it ages, it darkens in color and develops resinous compounds. Other chemical components of the essential oil include
ethyl cinnamate,
eugenol (found mostly in the leaves),
cinnamaldehyde, beta-
caryophyllene,
linalool, and
methyl chavicol
In medicine it acts like other volatile oils and once had a reputation as a cure for
colds. It has also been used to treat
diarrhea and other problems of the digestive system. Cinnamon is high in
antioxidant activity. The essential oil of cinnamon also has
antimicrobial properties,which can aid in the preservation of certain foods
Cinnamon has been reported to have remarkable pharmacological effects in the treatment of
Type 2 diabetes mellitus and
insulin resistance. However, the plant material used in the study was mostly from
cassia and only few of them are truly from
Cinnamomum zeylanicum (see
cassia's medicinal uses for more information about its health benefits). Recent advancement in phytochemistry has shown that it is a
cinnamtannin B1 isolated from
C. zeylanicum which is of therapeutic effect on
Type 2 diabetes, with the exception of the postmenopausal patients studied on
C. cassia. Cinnamon has traditionally been used to treat toothache and fight bad breath and its regular use is believed to stave off
common cold and aid digestion.
Cinnamon has been proposed for use as an
insect repellent, although it remains untested.
Cinnamon leaf oil has been found to be very effective in killing mosquito larvae. The compounds
cinnamaldehyde,
cinnamyl acetate,
eugenol, and
anethole, that are contained in cinnamon leaf oil, were found to have the highest effectiveness against mosquito larvae.
It is reported that regularly drinking of
Cinnamomum zeylanicum tea made from the bark could be beneficial to
oxidative stress related illness in humans, as the plant part contains significant antioxidant potential.