Daidai
Encyclopedia
Asia
Asia is the world's largest and most populous continent, located primarily in the eastern and northern hemispheres. It covers 8.7% of the Earth's total surface area and with approximately 3.879 billion people, it hosts 60% of the world's current human population...
n variety of bitter orange
Bitter orange
The name "bitter orange", also known as Seville orange, sour orange, bigarade orange, and marmalade orange, refers to a citrus tree and its fruit. Many varieties of bitter orange are used for their essential oil, which is used in perfume and as a flavoring...
. The name daidai, originally meaning several generations, originates from the fruit staying on the tree for several years if not picked. The colour of the fruit returns to green in the spring.
The daidai originated in the Himalayas
Himalayas
The Himalaya Range or Himalaya Mountains Sanskrit: Devanagari: हिमालय, literally "abode of snow"), usually called the Himalayas or Himalaya for short, is a mountain range in Asia, separating the Indian subcontinent from the Tibetan Plateau...
. It spread to the Yangtze valley
Yangtze River
The Yangtze, Yangzi or Cháng Jiāng is the longest river in Asia, and the third-longest in the world. It flows for from the glaciers on the Tibetan Plateau in Qinghai eastward across southwest, central and eastern China before emptying into the East China Sea at Shanghai. It is also one of the...
region and later to Japan
Japan
Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...
.
The native Japanese word for the color orange, daidai-iro, is derived from the name of this fruit. It is used as a decoration in Japanese New Year
Japanese New Year
The is one of the most important annual festivals, with its own unique customs, and has been celebrated for centuries. Due to the importance of the holiday and the preparations required, the preceding days are quite busy, particularly the day before, known as Ōmisoka.The Japanese New Year has been...
celebrations. A daidai is placed on top of a stack of round mochi cakes, called kagami mochi
Kagami mochi
, literally mirror rice cake, is a traditional Japanese New Year decoration. It usually consists of two round mochi , the smaller placed atop the larger, and a daidai with an attached leaf on top. In addition, it may have a sheet of konbu and a skewer of dried persimmons under the mochi...
. This use is believed to date from the Edo period
Edo period
The , or , is a division of Japanese history which was ruled by the shoguns of the Tokugawa family, running from 1603 to 1868. The political entity of this period was the Tokugawa shogunate....
. http://www.asahi-net.or.jp/~fv9h-ab/kamakura/botanical-essay2.html#Anchor836621
The fruit is very bitter, and not usually eaten, but its dried peel is used in Kampo
Kampo
, alternatively shortened as just , is the Japanese study and adaptation of Traditional Chinese medicine. The basic works of Chinese medicine came to Japan between the 7th and 9th centuries. Since then, the Japanese have created their own unique herbal medical system and diagnosis...
(the Japanese adaptation of Chinese medicine
Traditional Chinese medicine
Traditional Chinese Medicine refers to a broad range of medicine practices sharing common theoretical concepts which have been developed in China and are based on a tradition of more than 2,000 years, including various forms of herbal medicine, acupuncture, massage , exercise , and dietary therapy...
), in which it is called kijitsu (枳実). It is used as an expectorant and a digestive
Digestion
Digestion is the mechanical and chemical breakdown of food into smaller components that are more easily absorbed into a blood stream, for instance. Digestion is a form of catabolism: a breakdown of large food molecules to smaller ones....
tonic.