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Peach Kernel
Peach Kernel
桃仁
Market name:桃仁
Photo location:Museum of Materia Medica, Inst. of Nat. Med.
TMPW No.:10931
Prunus persica
Plant name:Prunus persica
Photo location:Tokyo, Japan
Photo date:1984
Photographer:M. Mikage

Synonym  
Latin name Persicae Semen
Botanical source: Family name Rosaceae
Botanical source: Plant name - Prunus persica Batsch (IPNI:1212858-2)
- Prunus persica var. davidiana Maximowicz
Part used Dried kernel of ripe seed
Empirical criteria for quality selection Good one is enlarged. The cortex is brown and the inside is white in color. In general, the one without its cortex is good in quality (TN).
Constituents Lipids:
Oleic acid, Palmitic acid, Glyceride of stearic acid

Triterpenoids:
24-Methylenecycloartanol, Δ7-Avenasterol, Citrostadienol

Peptide:
Emulsin

Cyanogenic compounds:
Amygdalin, Prunasin
Pharmacological effects Raises skin temperature, antiallergic (water extract, alcohol extract).
Indications As an antiinflammatory and for removing blood stasis, it is applied to treat a feeling of fullness and pain of hypogastric region, abdominal blood stasis, and irregular menstruation. The leaf of Prunus persica is widely used for abdominal pain and diarrhea in folk medicine.
Diseases Amenorrhea, Menorrhalgia, Intra-abdominal tumor, Hyperemesis after childbirth, Lower abdominal pain, Swelling and pain due to contusion, Appendicitis, Constipation, Cough
Formulas kyukichoketsuindaiichikagen , keishibukuryogan , keishibukuryoganryokayokuinin , kojito , goshitsusan , jiketsujunchoto , junchoto , jingyobofuto , sesshoin , senkinkeimeisan , sokeikakketsuto , daiobotampito , choyoto , teitoto , tokakujokito , toryuto , dokkatsuto , hachimisenkiho , hoyokangoto
Meridian tropism Heart, Liver, Large intestine
Property Neutral
Flavor Bitter, Sweet
Classification in "Shen-non Ben-cao Jing" Inferior
TCM: Classification Drugs for regulating blood conditions
TCM: Medicinal effects To promote blood circulation, to eliminate phlegm, and to relax the bowels.
Used for amenorrhea, dysmenorrhea, mass formation in the abdomen, traumatic injuries, constipation.
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 persica var. davidiana Maximowicz
Prunus persica Batsch (IPNI:1212858-2)
rpl16
 AB469167
 AY500671
trnS-trnG
  AY500733
rpl20-rps12
  AY968557
ndhF-like gene
  EU669129
atpB
  AF209660
psbA
  AF410189
 AF410190
nad1
 AY968485
 

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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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