Crude drug sample data base

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Crude drug name

Market nameトウヒ
Formal name橙皮
Japanese nameとうひ, Tōhi
Latin nameAurantii Pericarpium (JP)
English nameBitter Orange Peel (JP)
Original plant nameCitrus aurantium L.1, Citrus aurantium L. var. daidai Makino2, (a kind of Kabusu1, Daidai2)
Family nameRutaceae
Used partClassificationPlant origin
Sub classification pericarp of mature fruit
Collection informationJapan, Osaka Pref., Tochimoto Tenkaido Co., Ltd.
Collection date2007/5/15
CollectorKatsuko Komatsu
TMPW No.25501

The capital city, provincial capital city or the representative  
location of its administrative area is indicated.  
Production area information
https://ethmed.toyama-wakan.net/img/pin_san.png
34.6937378
135.50216509999996
Collection information
Japan,Osaka Pref.
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Scientific information data base

Common name橙皮(和橙皮), Tōhi, (Watōhi), Aurantii Pericarpium (JP18), Bitter Orange Peel (JP18)
Synonymsオレンジ・ピール,ビター・オレンジ
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Original plant nameCitrus aurantium Linn.1, Citrus aurantium Linn. var. daidai Makino2, Citrus hassaku Hort. ex Tanaka3, Citrus iyo Hort. ex Tanaka4, (a kind of Kabusu1, Daidai2, Hassaku3 Iyokan4)
original plant image
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Family nameRutaceae
Used partpericarp of mature fruit
Quality for selectionThe good one is large and thick. The inner white peel ( albedo) is removed. (TN)
Official compendiumJP XVIII
Clinical applicationAs an aromatic amaroid stomachic, carminative and spice, Aurantii Pericarpium is applied for indigestion, gastroenteritis and hangover.
Chemical constituentMonoterpenoids
(*C1):
精油 (1~2.5%):
d-Limonene (90%以上), Nerol

Triterpenoids
(*C1):
Limonin

Flavones & Flavonols
(*C1):
Rhoifolin
C. aurantium (*C2, C3):
5,7,8,4'-Tetramethoxyflavone, Nobiletin, 3-Hydroxy-5,6,7,8,3',4'-hexamethoxyflavone, Tangeretin, 5-Demethylnobiletin, Rhoifolin, Isosinensetin, Sinensetin, (3,5,6,7,8,3',4'-Heptamethoxyflavone)
C. hassaku (*C3, C4):
Nobiletin, 3,5,6,7,8,3',4'-Heptamethoxyflavone, Tangeretin, Rhoifolin, (3-Hydroxy-5,6,7,8,3',4'-hexamethoxyflavone)
C. iyo (*C4):
Nobiletin, 3,5,6,7,8,3',4'-Heptamethoxyflavone, Isosinensetin, Sinensetin, 5,7,8,4'-Tetramethoxyflavone, Tangeretin

Flavanones & Dihydroflavonols
(*C1):
Hesperidin, Naringin, Neohesperidin
C. aurantium (*C2, C3):
Naringin, Neohesperidin, Poncirin, Naringenin, Hesperetin, (Narirutin, Hesperidin)
C. hassaku (*C3, C4):
Poncirin, Naringenin, Hesperetin, Naringin, Neohesperidin, (Narirutin, Hesperidin)
C. iyo (*C4):
Hesperidin, Narirutin

Coumarins
C. aurantium (*C2, C3):
Meranzin, Isomeranzin, Meranzin hydrate, Marmin, 5-[(6,7-dihydroxy-3,7-dimethyl-2-octenyl) oxy]-Psoralen
C. hassaku (*C3, C4):
5-[(6,7-dihydroxy-3,7-dimethyl-2-octenyl) oxy]-Psoralen, Isomeranzin

Chemical structure



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Pharmacological effectEnhancing bile acid-dependent bile secretion (methanol extract), sedation, central inhibition (d-limonene), antiallergy (sinensetin, nobiletin, tangeretin), antiinflammatory (neohesperidin, sinensetin, nobiletin, tangeretin), antiulcer (marmin, nobiletin).
DNA sequenceU38312; Traditioal Medical & Parmaceutical Database.
Classical reference
(Chinese Herbal Classic "Zhenglei bencao")
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DiseaseDyspepsia, Gastroenteritis, Hangover
FormulationBitter Tincture, Sodium Bicarbonate and Bitter Tincture, Orange Peel Syrup, Orange Peel Tincture, Magnesium Sulfate Mixture
ReferencesJP18: The 18th edition of the Japanese Pharmacopoeia.
C1)The Encyclopedia of Wakan-Yaku with Color Pictures Vol. I, pp 264-265.
C2)Nat.Med.,50,114(1996).
C3)Nat.Med.,51,205(1997).
C4)Nat.Med.,51,231(1997).
RemarksThe Japanese Pharmacopoeia defines the pericarp of mature fruit of Citrus aurantium L. or C. aurantium L. var. daidai Makino(=C. aurantium L. subsp. amara Engler) as Tohi. The dried very immature entire fruit of daidai is called Mijukutojitsu (Aurantii Immaturi Fructus). It is called Kyugan on the market and is a substitute for Zhishi (Jap name: Kijitsu). The pericarp of Natsudaidai, or Natsumikan (C. natsudaidai Hayata) is called Natsukawa and is a substitute for Tohi. At present, on Japanese market, the pericarp of Hassaku (C. hassaku Hort. ex Tanaka) and Iyo (C. iyo Hort. ex Tanaka) are also distributed.
Last renewal date2021/09/27