E.K Herb ISO Certified Trans-Pterostilbene CAS 537-42-8 Pterostilbene Antioxidants
Pterostilbene is found in almonds, various Vaccinium berries, grape leaves and vines and blueberries. While resveratrol is under research for its potential properties from consuming wine and other foods or beverages, pterostilbene is also found in wine although it is not as well researched as its analogue. Pterostilbene is a stilbenoid chemically related to resveratrol. In plants, it serves a defensive phytoalexin role. The possible biological effects of pterostilbene are being examined in basic research involving laboratory models of several disorders, including age-related cognitive decline.
| Product Name |
Pterostilbene Extract |
| Active Ingredient |
Pterostilbene |
| Specifications |
99% |
| Appearance |
Off-white powder |
| CAS No. |
537-42-8 |
Function:
1.Pterostilbene has function of lowering blood lipids and cholesterol.
2. Pterostilbene can be used for treatment of diabetes.
3.Pterostilbene has function of anti-inflammatory, antineoplastic, anti-cancer, and antioxidant actions via modulations of gene expression and enzyme activity.
Application:
1. Used for treating heart diseases such as high blood pressure and high cholesterol.
2. Can interfere with cancer cell growth and proliferation, as well as induce apoptosis.
3. Be active against HIV by inhibiting virus expression and replication.
4. Accelerating healing of injured skin.
5. Inhibiting oral sugar metabolism and retard growth of certain bacteria.
6. Enhancing bone density and strength.
7. Protecting against carcinogenesis and prove supplementation for sunscreen protection.
Technical Data
|
TEM
|
SPECIFICATION
|
METHOD REFERENCE
|
|
Appearance
|
white powder
|
Visual
|
|
Ammonium
|
≤200ppm
|
USPmonograph
|
|
Chloride
|
≤200ppm
|
USP35<221>
|
|
Sulfate
|
≤300ppm
|
USP35<221>
|
|
Iron
|
≤10ppm
|
USP35<241>
|
|
Arsenic
|
≤2ppm
|
USP35<211>
|
|
Heavy metals
|
≤10ppm
|
USP35<231>Method I
|
|
Loss on drying(3h at 105 ºC)
|
≤0.5%
|
USP35<731>
|
|
Residue on Ignition
|
≤0.1%
|
USP35<281>
|
|
Total impurities
|
≤2.0%
|
USP monograph
|
|
Assay(dry basis)
|
98.0% to 101.0%
|
USP monograph
|
Hunan E.K Herb Co.,Ltd. founded in 2010, is a modern high-tech enterprise committed to plant functionality, the extraction and purification of active ingredients.Based on the construction of a high starting point, the company has the domestic leading plant extract production line, is a refined production workshop with nearly 3000 square meters and nearly 20 mu of standardized crude lifting production workshop of large-scale production enterprises, its core technology in the leading position in the domestic peers.E.K Herb with advanced production equipment and high-tech research and development level, characterized by high quality product quality, on the basis of integrity service consciousness and high level of service attitude, constantly launch new products, improve the enterprise platform, improve the corporate image, serve the society, just to create greater social value and economic benefits.
E.K Herb mainly features high purity products,such as Chlorogenic acid 98%, Ursolic acid 98%,Rosmarinic acid 98%,Carnosic acid 95% ,Amygdalin 98%, Dihydromyricetin 98%, Resveratrol 98%, EGCG 95%,, and personalized product demand, we use technical advantages, and strong research and development ability, to provide product customization and research and development outsourcing services, to meet the needs of different customers.The scope of products covers chemical industry, medicine, food, cosmetics and other fields, in the past ten years, E.K Herb has always uphold the spirit of ingenuity, to ensure the quality, with first-class quality second-rate prices, specifications, fast and thoughtful service by the majority of users.And applied for the five invention patents of "high purity green raw acid preparation process" ,"high purity lycopene preparation process", "High purity Rosemary acid preparation process", "High purity Ursolic acid preparation process", "High purity Amygdalin preparation process",and successfully passed the QS, 1S09001 and other certification.
ABOUT US
E.K Herb insists in the principle of Top Quality, Excellent Service, Outstanding R&D innovation, Best After-sale Services.
E.K Herb adheres to the spirit of excellence and continuous innovation, strives for the develop and booms of the plant extract industry!
To be your faithful and reliable partner!
E.K Office, R&D
E.K Factory
Our Exhibition
E.K Culture --- Team Building
Customer's Feedback
Packing & Shipping
Packing
* Delivery Time: Around 3-5 workdays after your payment.
* Package: In fiber-drums with two plastic bags inside.
* Net Weight: 25kgs/drum,Gross Weight: 28kgs/Drum
* Drum Size & Volume: I.D.42cm × H52cm, 0.08 m³/ Drum
* Storage: Stored in dry and cool place, keep away from strong light and heat.
* Shelf Life: Two years when properly stored.
shipping
* DHL Express, FEDEX and EMS for quantity less than 50KG, usually called as DDU service.
* Sea shipping for quantity over 300KG; and air shipping is available for 50KG above.
* For high value products, please select air shipping and DHL express for safe.
* Please confirm if you can make the clearance when goods reach your customs before placing an order. For buyers from Mexico, Turkey, Italy, Romania, Russia, and other remote area.
FAQ
Q1: What's the difference between herb extract and powder?
A: The extract is a concentrated powder form of raw material. The herb extract's procedure flow is wash, extraction, concentration, purification, drying, grinding, sieving, package. The herb powder is just a powder form of the herb. The procedure flow is wash, drying, grinding, sieving, package.
Q2: What's the extract solvent used in the procedure?
A: The extract solvent is always depending on the active ingredient in the raw material, regulation and customers' requirement. The solvents mostly used for extraction are water and ethanol. Even the solvent other than water used in the procedure, the solvent residue in the extract product also can conform with ICH Q3CR5.
Q3: Is there any other ingredient used in the product?
A: It depends. For product which is hard to be dried, we need to add some maltodextrin into the extraction solution before drying. The maltodextrin we used is food-class carrier, from non-GMO corn. We can share customer with the ingredient composition table.
Q4: How to make sure the quality of the product?
A: Firstly, every batch finish product must be tested and qualified before delivery. We can send a specification sheet or CoA for confirmation. The HPLC chromatography graph also can be provided. Secondly, we can provide pre-ship sample to customer for quality confirmation.
Q5: Can you develop a new product for us?
A: Yes, we can. We have independent R&D dept, who is able to update the procedure parameters of our main products and develop the procedure of new product. For more information, please contact us directly.
Q6: Can you offer this in capsules or tablets as well?
A: Yes, we have related equipment for preparation of finish product, like tablet, capsule and granule. Kindly contact with us for details.
Q7: What is the MOQ?
A: For most of the products we already have in stock, the MOQ is 1kg. If the product is a new specification and need to be produced from raw material, the MOQ depends.
Q8: Is there any discount?
A: Yes, for larger quantity or better payment period, we can support with better price.
Q9: How about delivery time?
A: For most products, the product can be sent out from factory in 5days. If we don't have inventory, the product need to produced from raw material, the ordinary period is 20-25days.
Q10: How do you treat with quality complaint?
A: We will always be responsible for the quality of our products. If there's a complaint, we will first assist customers to solve the most direct needs.
Secondly, we have SOP for quality complaint. QA will investigate the problem, after that we'll give customer a formal feedback about the cause of the quality issue and related precautions for this problem.
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