WordNet

(pharmacology) the extraction of water-soluble drug substances by boiling
flow under pressure
an unrestrained expression of emotion (同)gush, outburst, blowup, ebullition
a substance that oozes out from plant pores (同)exudation
(brewing) a process in which part of the mash is removed and boiled and then returned (同)decoction mashing

PrepTutorEJDIC

煎じ出すこと;〈C〉煎出エキス;煎じ薬
〈U〉流出,噴出;〈C〉流出物(量) / 〈C〉(感情・言葉などの,通例過剰な)吐露,ほとばしり
浸出液

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2015/06/09 17:21:22」(JST)

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Turkish coffee beginning to boil. Decoction used to be the primary method of making coffee, though today most coffee is made by percolation.

Decoction is a method of extraction by boiling of dissolved chemicals from herbal or plant material, which may include stems, roots, bark and rhizomes. Decoction involves first mashing and then boiling in water to extract oils, volatile organic compounds and other chemical substances.^[1] Decoction can be used to make herbal teas, teas, coffees, tinctures and similar solutions. Decoctions and infusions may produce liquids with differing chemical properties as the temperature/preparation difference may result in more oil-soluble chemicals in decoctions versus infusions. The process can also be applied to meats and vegetables to prepare bouillon or stock.^[2]

A decoction is also the name for the resulting liquid. Although this method of extraction differs from infusion and percolation, the resultant liquids are often functionally similar.

Etymology

The term dates back to 1350–1400^[3] from present participle stem of Latin decoquere (meaning to boil down), de "from" + coquere "to cook".^[4]

Use

In brewing, decoction mashing is the traditional method where a portion of the mash is removed to a separate vessel, boiled for a time and then returned to the main mash, raising the mash to the next temperature step.

In herbalism, decoctions are usually made to extract fluids from hard plant materials such as roots and bark.^{[citation needed]} To achieve this, the plant material is usually boiled for 8–10 minutes in water. It is then strained.

References

^ Biology-online.org
^ Courtine, Robert J. et al., eds. (1988) [French edition published 1984]. Larousse Gastronomique (English ed.). p. 362. ISBN 0-600-32390-0.
^ Dictionary.reference.com
^ Etymonline.com

External links

How To Make a Herbal Decoction from unexplained.net

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1. アレルギー疾患の治療のための漢方薬 chinese herbal medicine for the treatment of allergic diseases

English Journal

Yifei Xuanfei Jiangzhuo formula, a Chinese herbal decoction, improves memory impairment through inhibiting apoptosis and enhancing PKA/CREB signal transduction in rats with cerebral ischemia/reperfusion.

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[Corrigendum] Anti-inflammatory effects of Guolou Guizhi decoction in transient focal cerebral ischemic brains.

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Characterization of arabinogalactan-rich mucilage from Cereus triangularis cladodes.

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Japanese Journal

Yidiyin, a Chinese Herbal Decoction, Improves Erectile Dysfunction in Diabetic Patients and Rats through the NO-cGMP Pathway

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… Recently, Yidiyin, a Chinese herbal decoction, is used to treat diabetic ED, but convincing evidence is lacking, and the potential mechanisms remain uncertain. …
NAID 10030399543

Development and validation of an HPLC-DAD method for the simultaneous quantification of 8 characteristic components in kakkonto decoction

Wang Yan,Lin Qing,Ikegami Fumio
Journal of traditional medicines 29(4), 195-202, 2012-00-00
NAID 40019494590

Anti-angiogenic Activity of Erxian Decoction, a Traditional Chinese Herbal Formula, in Zebrafish

Yu Xiaobin,Tong Yao,Kwok Hin-Fai [他],Sze Stephen CW,Zhong Lidan,Lau Clara Bik-San,Ge Wei
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… Erxian Decoction (EXD), a traditional Chinese herbal formula, has been used to treat menopausal symptoms and other aging diseases for several decades. …
NAID 130001872055