Kangyuan is a private pharmaceutical enterprise group with 32 years of
entrepreneurial history, integrating scientific research, production, and sales,
from initial raw materials to high-quality raw materials to preparations, and a
complete industrial chain from China to the world.
There are many types of products. Today we introduce: Urofollitropin
extraction process
The invention has the advantages of simplified process technology, high
product yield, and low production cost.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention
will be described in detail below through examples.
(1) By collecting 1000L of menopausal women's urine, the urine after
passing the inspection is put into the tank, and the pH value of the urine is
adjusted to 8.0～9..0 with 20% sodium hydroxide;
(2) After adjusting the pH value, add 10kg of diatomaceous earth to the
urine, stir evenly, and filter with a plate frame;
(3) Pour the filtered solution into an ultrafiltration tank, pass through
an ultrafiltration membrane with a molecular aperture of 10,000, put 10 L of the
concentrated solution into the precipitation tank, and add 10% ammonium acetate
to the concentrated solution under stirring;
(4) Under stirring, add ethanol to the concentrated solution to make the
concentration reach 70%, filter, collect the clear liquid, then add ethanol to
the clear liquid to make the concentration reach 80%, stir well and let it
settle for 5 hours. The precipitate was washed 3 times with 95% ethanol,
dehydrated, and dried to obtain 10.8 grams of the product.
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