Cinnamomum cassia

"Chinese cinnamon" redirects here. For the tea also known as "Chinese cinnamon", see Rougui tea.
Cinnamomum cassia
from Koehler's Medicinal-Plants (1887)
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Magnoliids
Order: Laurales
Family: Lauraceae
Genus: Cinnamomum
Species: C. cassia
Binomial name
Cinnamomum cassia
(L.) J.Presl
Synonyms[1]
  • Camphorina cassia (L.) Farw.
  • Cinnamomum aromaticum Nees
  • Cinnamomum longifolium Lukman.
  • Cinnamomum medium Lukman.
  • Cinnamomum nitidum Hook. nom. illeg.
  • Laurus cassia L.
  • Persea cassia (L.) Spreng.

Cinnamomum cassia, called Chinese cassia or Chinese cinnamon, is an evergreen tree originating in southern China, and widely cultivated there and elsewhere in southern and eastern Asia (India, Indonesia, Laos, Malaysia, Taiwan, Thailand, and Vietnam).[2] It is one of several species of Cinnamomum used primarily for their aromatic bark, which is used as a spice. In the United States, Chinese cassia is the most common type of cinnamon used. The buds are also used as a spice, especially in India, and were once used by the ancient Romans.

The tree grows to 10–15 m tall, with greyish bark and hard, elongated leaves that are 10–15 cm long and have a decidedly reddish colour when young.

Production and uses

Cassia (C. cassia) essential oil
Young Indonesian cinnamon tree, Indonesia
C. cassia (top left) depicted by Michał Boym (1655)

Chinese cassia is a close relative to Ceylon cinnamon (C. verum), Saigon cinnamon (C. loureiroi), also known as "Vietnamese cinnamon", Indonesian cinnamon (C. burmannii), also called "korintje", and Malabar cinnamon (C. citriodorum) from Sri Lanka. In all five species, the dried bark is used as a spice. Chinese cassia's flavour is less delicate than that of Ceylon cinnamon. Its bark is thicker, more difficult to crush, and has a rougher texture than that of Ceylon cinnamon.[3]

Most of the spice sold as cinnamon in the United States, United Kingdom, and India is Chinese cinnamon.[3] "Indonesian cinnamon" (C. burmannii) is sold in much smaller amounts.

Chinese cassia is produced in both China and Vietnam. Until the 1960s, Vietnam was the world's most important producer of Saigon cinnamon, which has a higher oil content , and consequently has a stronger flavor. Because of the disruption caused by the Vietnam War, however, production of Indonesian cassia in the highlands of the Indonesia island of Sumatra was increased to meet demand. Indonesian cassia has the lowest oil content of the three types of cassia, so commands the lowest price. Chinese cassia has a sweeter flavor than Indonesian cassia, similar to Saigon cinnamon, but with lower oil content.

Cassia bark (both powdered and in whole, or "stick" form) is used as a flavouring agent for confectionery, desserts, pastries, and meat; it is specified in many curry recipes, where Ceylon cinnamon is less suitable. Cassia is sometimes added to Ceylon cinnamon, but is a much thicker, coarser product. Cassia is sold as pieces of bark (as pictured below) or as neat quills or sticks. Cassia sticks can be distinguished from Ceylon cinnamon sticks in this manner: Ceylon cinnamon sticks have many thin layers and can easily be made into powder using a coffee or spice grinder, whereas cassia sticks are extremely hard and are usually made up of one thick layer.

Cassia buds, although rare, are also occasionally used as a spice. They resemble cloves in appearance and have a mild, flowery cinnamon flavor. Cassia buds are primarily used in old-fashioned pickling recipes, marinades, and teas.[4]

Health benefits and risks

Dried cassia bark

Chinese cassia (called ròu gùi; in Chinese) is produced primarily in the southern provinces of Guangxi, Guangdong, and Yunnan. It is considered one of the 50 fundamental herbs in traditional Chinese medicine.[5] Due to a blood-thinning component called coumarin, which could damage the liver if taken in huge amounts, European health agencies have warned against consuming high amounts of cassia.[6] Other bioactive compounds found in the bark, powder and essential oils of C. cassia are cinnamaldehyde and styrene. In high doses these substances can also be toxic for humans.[7]

Current research

Cinnamomum cassia is a medicinal plant that contains a range of bioactive substances, including cinnamic aldehyde. Studies of cinnamic aldehyde treatment in mid-aged rats have resulted in alleviation of chronic unexpected stress-induced depressive-like behaviors. Cinnamic aldehyde is an enzyme inhibitor drug, immunologic drug, and an anti-inflammatory drug. It is administered orally to treat behavioral and mental disorders, targeting the hippocampus and the frontal cortex. Current findings might be beneficial in treating subjects in depression. [8]

See also

References

  1. "The Plant List".
  2. Xi-wen Li, Jie Li & Henk van der Werff. "Cinnamomum cassia". Flora of China. Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA. Retrieved 28 March 2013.
  3. 1 2 "Cassia: A real spice or a fake cinnamon". China Business Limited as Regency.
  4. "Cassia". theepicentre.com.
  5. Wong, Ming (1976). La Médecine chinoise par les plantes. Le Corps a Vivre series. Éditions Tchou.
  6. NPR: German Christmas Cookies Pose Health Danger
  7. High daily intakes of cinnamon: Health risk cannot be ruled out. BfR Health Assessment No. 044/2006, 18 August 2006 15p
  8. Yao, Ying (Mar 13, 2015). "Cinnamic aldehyde treatment alleviates chronic unexpected stress-induced depressive-like behaviors via targeting cyclooxygenase-2 in mid-aged rats". BIOSIS. 162: 97–103. doi:10.1016/j.jep.2014.12.047. Retrieved Apr 27, 2015.

Further reading

Chang, Chen-Tien; Chang, Wen-Lun; Hsu, Jaw-Cherng (August 2013). "Chemical composition and tyrosinase inhibitory activity of Cinnamomum cassia essential oil". Botanical Studies. 54 (1): 10. doi:10.1186/1999-3110-54-10. 

External links

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