Epimedium Grandiflorum Extract
Latin name: Epimedium Grandiflorum Morr.
Chinese name: Yin Yang Huo
Family: Berberidaceae
Genus: Epimedium
Plant original: Epimedium Brevicornum L
Part used: Total herb/ aerial part
Ingredients：Icariin Icariins
Specification：Icariin 5%, 10%, 20%, 30%, 40%, 50% Test By HPLC
Icariins 5%, 10%, 20%, 30%, 40%, 50% Test By HPLC
Test Method：HPLC
Function：
1 Summary
Epimedium Grandiflorum Morr. (Yin Yang Huo in Chinese Name ) as
one of the famous Chinese medicinal herbs, was most used for
strengthening YANG in ancient China.
ShapePerennial herbaceous, with height 30—50cm. Rhizome is
crawling, with hard texture and in deep brown color. Leafstalk is
tall & thin, along with straight stem. The flower, white in
common, is about 6—8cm in diameter. Seed appears to be brown or
black brown. Florescence for Epimedium grandiflorum: June to July;
Fruit period: August.
Cultivation: 1. Field choice and soil preparationChoose empty land
under broadleaf trees or rows between fruit trees, remove bush
roots and weeds, then turn up the soil deep to 30cm with smashing
the earth. Excavate several field ditches in 60cm width according
to the area size. 2. BreedingAccording to the position of the
hidden sprout, cut the stem in disorder underground into pieces
with 10—20cm long, so as to increase the pieces in monomer. 3.
Field setting: Put the stem pieces crisscrossing along ditches in
tow rows, step on tightly with covering a thin layer of soil.
Irrigate the fields to infiltration, join the sections after water
fully infiltrated. Field setting should be done in autumn after
gathering. 4. Field managementRemove the weeds in time in spring
next year after field setting when cultivating in rows of fruit
trees, due to young seedling and wide row space. No need to remove
weeds and loosen the soil when cultivating under broadleaf trees
due to shade with trees and less weeds. Do not gather in the
stem-leaf of the area part in the same year of field setting, just
for growing healthy sprout over winter so as to promote breeding in
speed to joint together.
Harvest: Generally done in summer and autumn for aerial part. Clean
the Epimedium grandiflorum after gathering, bind it in bundle,
leave to dry in the sunshine. Store with sealed and moisture-proof.
DistributionEpimedium grandiflorum most grows by broadleaf trees in
balanced moisture, in shrubbery, and in shady hillside. It’s in the
best growing with fleshy humus soil, and distributing in large
area. It’s mainly distributed in China in North-east, Shanxi and
Sichuan province.
2 The main chemical composition
There are many ingredients in Epimedium grandiflorum, such as ceryl
alcohol, hentriacontane, phytosterol, icariin, baohuoside I,
baohuoside II, 2’’-0-rhamnosylicaliside II, sagittatoside B,
karisoside F, ikarisoside C, icariside I,II and epimedoside A. etc.
The efficacy and mechanism
The medicinal function of Epimedium grandiflorum was originally
recorded in Shen Nong Peng Cao Tsing, acerbity, sweet & warm in
nature, with efficacy of invigorating kidney & strengthening
Yang, expelling wind-evil & desiccation.
In clinical, Epimedium grandiflorum Extract (Icariin) is widely
used for male’s sterility and sexual dysfuction. Icariin has effect
to speed lust. This kind of effect is caused by urging of semen
secrete, filling the seminal vesicle, stimulating sensory nerve and
exciting sexual desire indirectly.
It’s proved by study that Icariin can clearly strengthen the weight
of epididymis and seminal vesicle gland in small rat, but without
influence to the weight of testis. Icariin also can promote the
basic secrete of testosterone, which is identical to CAMP rising.
Icariin rises the ratio of CAMP/CGMP by downward CGMP system and
upward camp system.
The modern pharmacology study proves that the function of
invigorating kidney, anti-aging and like-male hormone is to include
special chemical material---Icariin, which has clear biological
activity, with increasing obviously the weight of epididymis and
seminal vesicle gland in small rat and improving its growth,
strengthening the secrete function in
hypothalamus----hypophysis----sex gland axis----adrenal cortex axis
and thymus gland axis.
The reasons for functional disorder in penile erection is due to
blood vessel nerve, endocrine, psychology, diabetes, high blood
pressure, spinal cord nerve damage and smoking, etc, among which
the incidence of diseases cover 50% in male adult.
Penile erection is a set of dynamics variation of blood in ph
