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Apricot Kernel
Apricot Kernel
キョウニン
Market name:キョウニン
Photo location:Museum of Materia Medica, Inst. of Nat. Med.
TMPW No.:11445
Prunus armeniaca var. ansu
Plant name:Prunus armeniaca var. ansu
Photo location:Nagano Pref., Japan
Photo date:1984
Photographer:K. Komatsu

Synonym  
Latin name Armeniacae Semen
Botanical source: Family name Rosaceae
Botanical source: Plant name - Prunus armeniaca Linné (IPNI:729463-1)
- Prunus armeniaca var. ansu Maximowicz
- Prunus sibirica Linné (IPNI:324747-2)
Part used Seed
Empirical criteria for quality selection Good one is fat and large-fruit. The inside is white in color. It is used after removing the shell of the semens (TN).
Constituents Lipids:
Glyceride of oleic acid

Peptide:
Emulsin, Anti-inflammatory protein

Cyanogenic compounds:
Amygdalin
Pharmacological effects Antipyretic, relaxation of tracheal smooth muscle, antitussive, antiinflammatory, vermifugal and disinfectant.
Indications As an antitussive, expectorant and diuretic, it is applied to treat asthma, cough, dyspnea, distension of the gastric region, edema and constipation due to dryness of intestine.
Diseases Asthma, Cough, Dyspnea, A lot of sputum, Edema, Constipation
Formulas kagaisan , kyososan , keishikakobokukyoninto , keimakakuhanto , gedaishimotsutokami , gokoto , saikyohangeto , shien , shoseiryutokakyoninsekko , shozokumeito , shimpito , junchoto , seihaito , zokumeito , daiseiryuto , bukuryokyoninkanzoto , maokajutsuto , maoto , maorenshoshakushozuto , makyokansekito , makyoyokukanto , mashiningan , ryokankyomishingeninto
Meridian tropism Lung, Large intestine
Property Warm, Little toxic
Flavor Bitter
Classification in "Shen-non Ben-cao Jing" Inferior
TCM: Classification Expectrants and antitussives
TCM: Medicinal effects To relieve cough and asthma, and relax bowels.
Used for cough and asthma accompanied by stuffiness in the chest and profuse expectoration, constipation due to deficiency of blood and fluid.
Remarks Listed in the Japanese Pharmacopoeia 18th ed.
References TN: T. Namba & Y. Tsuda ed., Outline of Pharmacognosy, a Textbook, 3rd ed., Nankodo Co., Ltd., Tokyo, 1998.
DNA sequences of medicinal plants
Gene Region
Nuclear Chloroplast Mitochondria
Botanical source: Plant name 5Ss 18S ITS1 5.8S ITS2 26S others trnH-psbA matK trnK trnK-rps16 trnT-L trnL trnL-F rbcL rpoC1 ndhF others
Prunus armeniaca var. ansu Maximowicz (NCBI:txid170481)
psbA
 AF410186
Prunus armeniaca Linné (IPNI:729463-1)
atpB-rbcL
 CAM282870
 AM282871
 EF513136
rpl16
 AB469163
 AY500663
trnS-trnG
  AY500725
Prunus sibirica Linné (IPNI:324747-2)
atpB-rbcL
 EF513138
ycf5
 GQ435714
rpl16
 AB469164
 

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Section of Pharmacognosy,
Division of Medicinal Resources,
Department of Research and Development,
Institute of Natural Medicine,
University of Toyama
2630 Sugitani, Toyama 930-0194 Japan
TEL: +81-76-434-7601
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