Company Details

  • Xi'an Yuanyu Biological Co., Ltd.

  •  [Shaanxi,China]
  • Business Type:Manufacturer
  • Main Mark: Africa , Americas , Asia , Caribbean , East Europe , Europe , Middle East , North Europe , Oceania , Other Markets , West Europe , Worldwide
  • Exporter:91% - 100%
  • Certs:ISO9001, FDA
  • Description:Plant Extracts manufacturer / supplier, offering Natural Sweeteners,Herbal Extracts, etc.

Xi'an B-Thriving I/E Co.,Ltd.

Plant Extracts manufacturer / supplier, offering Natural Sweeteners,Herbal Extracts, etc.

Pine Bark Extract Powder, proanthocyanidins 95% 98%

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    Payment Type: L/C,T/T,D/P,Money Gram,Western Union
    Terms of Trade: FOB,CIF,FCA
    Min. Order: 1 Kilogram
    Delivery Time: 7 Days

Basic Info

Pine Bark Extract Powder, proanthocyanidins 95% 98%

Product Description:

Product Name Pine Bark Extract

Latin Name: Pinus massoniana L.

Specs: 95%-98% proanthocyanidins; 70%-80% polyphenols, 5: 1

Part Used: Inner Bark

Apperance: Brown red powder

Test method: HPLC

CAS No. 8011-48-1
Source of Plant: China
Active Ingredients: OPCs Proanthocyanidins (monomers, oligomers, polymers)Polyphenols
Molecular Formula: C30H26O12(Dimer)
Molecular Weight: 578(Dimer)


Pine bark extract can be made into capsules, troche and granule as healthy food and drug.

Pine bark extract which has good solubility in water and ethanol plus the solution transparence and brilliance color, hasbeen widely added into the beverage and cosmetics as the functional ingrendient.

pine bark extractcontains abundant biological isoflavone, known as proanthocyanidins, which has strong

ability to anti-oxidate and remove free radicals. Its antioxidant activity is 20 times of vitamin E. Mainly used

inpharmaceutical, health products, food supplement and cosmetic field.





Fine powder


























Extending the lifetime of vitamin C in the body, prolonging its beneficial effects as an antioxidant.

Helping Vitamin C work better in the brain. Vitamin C is needed for the synthesis of the neurotransmitters norepinephirine, dopamine and serotonin, which are involved with ADD.

Suppressing the production of NO (nitric oxide) and thus limits the collateral damage resulting from immune system attacks on viral and bacterial invaders. Excess NO has been linked to inflammation, rheumatoid arthritis and Alzheimer's disease.

Preventing and treating a condition known as chronic venous insufficiency

Being effective for slowing retinopathy

Lowering blood levels of LDL ("bad") cholesterol moderately

Relieving abdominal pain for women with endometriosis.

Improving concentration and reducing restless behavior for the children with attention deficit hyperactivity disorder (ADHD)

Injecting pine bark extract produced significant reductions in blood sugar levels. Taking orally pine bark extract has also shown slight antidiabetic effects.

Fighting aging and restoring wrinkled skin

1. Pine bark extract can reduce the damage to the artery wall

2. Pine bark extract can slow or repair atherosclerosis, and effectively adjust venous.

3. Pine bark extract can be used in treatment of retinopathy, also can effectively enhance eyesight.

4. Pine bark extract can be used for anti-aging, treatment of Alzheimer's disease.

5. Pine bark extract plays a very important role to protect the skin.


1.Pharmaceutical as capsules or pills;

2.Functional food as capsules or pills;

3.Water-soluble beverages;

4.Health products as capsules or pills.


RawMaterial - Immersioninwater - Filtering - Purification - ConcentrationinVacuum - KillingofBacteria - Drying - Powder


About Us:

Our company is located in Xi'an High-tech Industrial Development Zone, with a 6 million-acre GAP plantation in Qingling-Bashan Mountain (Chinese Natural Medicine Valley). Our company is a technologic manufacturer with our own import and export rights, specialized in the development, research, production and sales of the plant extract powder.
According to the GMP standards, our company has established 1,000 tons multi-functional integrated production line to extract the Chinese plant.
We have built the professional analysis laboratory with top equipment to guarantee the product quality, such as WATERS HPLC, AGILENT UV, GC and AAS. We also cultivate an excellent research team cooperating with Shaanxi University and Research Constitute to develop new products for international market.
To be competitive in today's marketplace, we have the world's finest ingredients for manufacturing. Our company is located in Shaanxi Province, surrounded by Qinling Mountains. Because of the location superiority, there are abundant kinds of natural and finest herbs in China.
Our plant extract is extracted from the high quality herb ingredients. It can ensure the merits of high content of effective component, function permanence, less toxicity and better effect. It also has better competition ability after concentration by the device, featuring non-contamination and maintaining a good herb taste.
Our plant extract can be used in the health food and pharmaceutical industry. It also can be used directly as the raw material in capsulation.
Our natural fruit juice powder includes berries, citrus fruits, grapes, kernel fruits and melons, which are manufactured from the organic resources. All plants are growing up naturally, free from pesticides and fertilizers pollution. They are the real green foods. The most advanced production equipment, experiment, and laboratory test instrument are adopted by our company. Based on those organic plant resources and the state-of-the-art extraction, concentration, separation, purification and vacuum freeze drying technologies, our products can be assured of high purity, good color and tasty.
Natural fruit juice powder can be used as food additives, not only improves the color, fragrance and taste, but improves the nutritional value of food. It is mainly used as raw material to add in wine, fruit juice, jam, ice cream, bread, cake, cookies, candy and other foods.
Natural fruit juice powder can be used as raw material to reprocess. The specific products contain medicinal ingredients. Through the biochemical pathway we can get desirable valuable byproducts. It's the purely natural raw materials for health care products and cosmetics as well.
Our natural vegetable powder comes from the freshest vegetables. It grows up naturally, free from pesticides and fertilizers pollution. All products are manufactured by strict selection, technology and excellent quality is guaranteed.
Vegetable powder can be used in the health products industry. It is mainly used in instant soup, food gravies. As the flavor agents apply in the bread, it can enhance the taste and nutrition greatly.

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Products:  pine bark extract/pine bark extract powder/pine bark p.e. 95% opc

Extraction parts: bark

Latin name: Pinus massoniana

Ingredient: OPC

Appearance: Reddish brown powder

Specification: 95% OPC

Test method: UV

The pine bark extract group had a significant reduction in hyperactivity and improved attention, visual-motor coordination, and concentration, whereas there were no positive effects noted in the placebo group. One month after pine bark extract treatment ceased, patients had recurrence of symptoms. Treatment was not significantly effective for girls in contrast to boys, but there were only 6 girls in the pine bark extract group.

    An extract of pine bark has proven to be one of the most potent antioxidants, a property that may explain why pine bark has been used in folk medicine around the world, according to a new report by scientists at the University of California, Berkeley.

Active ingredients

   Procyanidins are widely distributed in plants, similar to anthocyanins. They are polyphenols formed by the condensation of flavan-3-ol monomers. Has a strong antioxidant activity, has been widely used in food, medicine, cosmetics and other fields.


Physical and Chemical Properties

1 Appearance

Grape seed proanthocyanidins extract appearance is generally deep rose red to light brown red refined powder, oligomers colorless to light brown, but because the grape seed species, different sources, so the appearance, color, there are some differences.

2 tanning

Procyanidins can bind to proteins. Under normal circumstances, the combination is reversible. Procyanidins-protein binding reaction is one of its most characteristic response.

3 Solubility

Oligomeric procyanidins soluble in water, alcohol, ketone, acetic acid, acetic acid cool cool polar solvent, insoluble in petroleum ether, chloroform, benzene and other weak polar solvents. High procyanidins do not dissolve in hot water but soluble in alcohol or sulfite solution, which is equivalent to water-insoluble tannins, used to be called "pink." Polymerization of greater polymerization of procyanidins do not dissolve in a neutral solvent, but soluble in alkaline solution, also known as the habit of "phenolic acid."

The UV absorption wavelength of the aqueous solution of grape seed extract proanthocyanidins was 278 nm. Because of its molecules contained in the benzene ring structure, in the ultraviolet region has a strong absorption. Can play a "UV filter" role in the development of cosmetics can be developed sunscreen.

Usually 2 to 4 polymer called oligomeric procyanidins (Procyanidolicoligomer, OPC), pentamer above called polymer (Procyanidolicpolymers, PPC).



Type:Herbal Extract

Variety:pine bark extract



Extraction Type:Solvent Extraction

Packaging:Drum, Vacuum Packed

Place of Origin:Shaanxi, China (Mainland)

Grade:pharmaceutical grade

Model Number:HH-12651

Botanical Source:Pinus massoniana Lamb

Test Method:UV-VIS

Color:Brownish red fine powder

Active Ingredient:95% OPC


Extract Method:Water/Ethanol



Appearance:Fine powder

Origin:Shaanxi, C

Extraction Process

Procyanidins for the separation and purification of the effect of traditional solvents, countercurrent solvent extraction effect is good, OPC can meet the requirements, but the traditional solvent extraction, lower yield, so the use of more advanced countercurrent solvent extraction, separation and purification oligomer procyanidins, Which can effectively avoid the shortcomings of the traditional resin separation method and solve the problem of non-selectivity in the separation of the resin method and the problem that the solvent loss is large and the extraction rate is low in the traditional solvent extraction method, and the product extraction Yield and quality have been greatly improved, and save the amount of solvent, reduce costs.

Comprising at least the following steps:

1) pre-treatment: clean raw materials.

2) extraction: the polarity of the organic solvent should be used for extraction.

3) Efficient countercurrent extraction: separate the different parts of the collection.

4) Concentrated recovery solvent: The extracted solvent is recovered and a thick paste is obtained.

The general production process is as follows:

Raw materials → pre-treatment → extraction → recovery of solvent, concentration → solid-liquid separation → concentration → high-efficiency inverse

Flow extraction → concentration → drying → sterilization, packaging

detailed description:

1) Pretreatment: Pine bark was put into the extractor and rinsed with deionized water.

2) Extraction: add 8 times the amount of water, the temperature control at 80 degrees Celsius dynamic extraction of the second, each 6h, the combined filtrate.

3) Concentration recovery solvent: the extract into the concentrator for vacuum recovery, temperature control at 70 degrees Celsius, the vacuum control at 0. O7 or more, the concentration of liquid control in the ratio of 1: 2 with the raw materials.

4) solid-liquid separation: the concentrated liquid with high-speed centrifuge for solid-liquid separation.

5) Concentration: After centrifugation of the liquid and then concentrated, the temperature control at 60 degrees Celsius below the vacuum control at 0.08 or more, the amount of concentrated liquid control with the raw material ratio of 0.8: 1.

6) High efficiency countercurrent extraction: The concentrated liquid is introduced into the extraction tower, and 2 times of ethyl acetate is evenly added from the bottom of the tower to carry out convection solvent extraction, circulating 4-5 times different tower bodies and collecting separately.

7) Concentration: The extracted ethyl acetate was recovered and a thick paste was obtained.

8) Spray Drying: Dilute the prepared thick paste with an appropriate amount of deionized water and spray dry.

9) sterilization, packaging: the dry powder for UV light sterilization, and then packaging.


A:What is the use of skin care products containing French pine nut extract?

Q:Enhance the ability of the body to overcome the pressure of hypoxia, by increasing the synthesis of cell globulin, mitigate intracellular oxygen delivery, giving skin healthy luster.                           

Q:How does Coastal Pine Extract work for cardiovascular disease?

A:Oxidant LDL has been shown to play an important role in causing atherosclerosis. Due to the excellent antioxidant function of OPCs, it can eliminate free radicals like collagenase and elastase-like damage to the arterial wall, thereby preventing or repairing arteriosclerosis. Animal experiments show that OPCs can slow down or repair arteriosclerosis.