Produt Deatails
What is Quercetin ?
Quercetin is a potent antioxidant and has anti-inflammatory activity, protecting cellular structures and blood vessels from the damaging effects of free radicals. It improves blood vessel strength. Quercetin inhibits the activity of catechol-O-methyltransferase that breaks down the neurotransmitter norepinephrine. This effect may lead to elevated levels of norepinephrine and an increase in energy expenditure and fat oxidation. It also means Quercetin acts as an antihistamine leading to relief of allergies and asthma.
| Basic Information | |
| Product Name | Quercetin Powder |
| Latin Name | Sophora japonica L. |
| Part Used | Flower |
| Appearance | Light Yellow Fine Powder |
| Active Ingredient | Quercetin |
| Specification | Quercetin 98% |
| CAS No. | 117-39-5 |
| Molecular Formula | C15H10O7 |
| Molecular Weight | 302.24 |
Product Specifications
| Analysis | Specification | Result | Test method |
| Physical Description | |||
| Appearance | yellow fine powder | Complies | Visual |
| Odor | Characteristic | Complies | Organoleptic |
| Tasted | Characteristic | Complies | Organoleptic |
| Particle size | 100% through 80 mesh | Complies | 80 Mesh |
| Extract solvent | Water | Complies | / |
| Bulk density | 40~65g/100ml | 45.3g/100ml | / |
| Chemical Tests | |||
| Assay (Sophora Japonica Extract) | 95% | Complies | TLC |
| Loss on Drying | 8-12% Max | 0.18% | 5g/105ºC/2hrs |
| Sulphated Ash | 0.5%Max | 0.22% | 2g/525ºC/3hrs |
| Heavy metals | |||
| Pb | 2ppm Max | Complies | AAS |
| As | 2ppm Max | Complies | AAS |
| Cd | 1ppm Max | Complies | AAS |
| Hg | 1ppm Max | Complies | AAS |
| Microbiology Control | |||
| Total plate count | 10,000cfu/g Max | Complies | AOAC |
| Yeast & Mold | 1000cfu/g Max | Complies | AOAC |
| E. Coli | Negative | Negative | AOAC |
| Salmonella | Negative | Negative | AOAC |
| Conclusion | Complies with the standards. | ||
| General Status | Non-GMO, Non-irradiation. | ||
| Packing and Storage | |||
| Packing: Pack in paper-carton and two plastic-bags inside. | |||
| Shelf life: 2 year when properly stored. | |||
| Storage: Store in a well-closed place with constant low temperature and no direct sun light. | |||
Products Function
1.Quercetin is good at expectorant, cough effect, and treating asthma.
2.Quercetin is useful to lower blood pressure, increase capillary resistance, reduce capillary fragility, lower blood fat, expansion of coronary artery, increase coronary blood flow and so on;
3.Quercetin is also to treat chronic bronchitis,and good at treat coronary heart disease and high blood pressure.
4.Quercetin can significantly inhibit the role of tumor promoters, inhibit the growth of ex vivo malignant cells, inhibit Ehrlich ascites cancer cells DNA, RNA and protein synthesis.
5.In addition to Quercetin for food antioxidant, but also can be used as food yellow pigment.
6.Quercetin can be used as a medium dye. For wool and cotton, yellow with aluminum salt, olive salt with a yellow chromate salt, with orange salt tin, olive salt with iron green. Good resistance to soaping, light and medium.
| Quercetin may expel phlegm and arrest coughing, it can also be used as anti-asthmatic. |
| Quercetin has anticancer activity, inhibits PI3-kinase activity and slightly inhibits PIP Kinase activity, reducescancer cell growth via type II estrogen receptors. |
| Quercetin may inhibit histamine release from basophils and mast cells. |
| Quercetin may control the spread of certain viruses within the body. 5, Quercetin may help reduce tissue destruction. |
| Quercetin may also be beneficial in the treatment of dysentery, gout, and psoriasis |
Application Field 
1. Quercetin Pharmaceutical industry: Some medicine with bromelain like throat tablet can diminish inflammation, facilitate digestion and improve immunological competence.So it can be applied in examination, treatment of gynecopathy, glaucoma and inset bitten.
2. Quercetin Food industry: It can be applied in hydrolyzing protein of plants and animals, so it can be used in the meat tenderizer,wine clarifier,stabilizer of noodle,health foods and soy sauce brewing etc. It can also improve the nutritional value.
company information
Xi'an Sheerherb Biological Technology Co., Ltd. is a professional company dedicated to providing high-quality organic biological products to the world. Our company integrates sales, production, R & D and testing. It covers an area of 1300 square meters and is divided into office areas, laboratories, test rooms and aseptic packaging workshops designed according to GMP standards. The company has passed the EU organic certification, iso9000 quality system certification, the US FDA certification, to provide customers with high standards of organic food.
Packaging & Shipping
PACKAGING:
1kg/Aluminum foil bag ,25kg/drum.Or small package as customer's requirement.
1kg/Aluminum foil bag ,25kg/drum.Or small package as customer's requirement.
SHIPPING:
| Recommended Transportation Selections | ||
| By Air | By Express | By Sea |
| Suitable for >50kg | Suitable for sample order or <50kg | Suitable for > 300kg |
| Fast: 3-7 days | Fast: 3-10 days | Slow: 7-45 days |
| Lower than express cost | High shipping cost | Lowest cost |
| Airport to airport service | Door to door service | Port to port serviceRecommended transportation selections |
| Professional broker needed | Professional broker needed | |
Why Choose SheerHerb:
1. China's TOP 100 food companies2.Over 10 years of experience
3.Wholly owned production plant
4.Sales to more than 120 countries
5 Highly Effective, No Preservatives, No Fat & Low Sugar
6.FCL, 2--5mt LCL, long contract, year contract available
7.Halal, Kosher, ISO 9001 certified
8.High quality products, complying with BP/USP/FCC/EU standard
9.The highest quality collagen sourced from 100% pure fish
10.Tasteless and odorless, most neutral tasting product on the market and with the best solubility
FAQ:
| Q1: Can i get some samples? |
| A: Yes, we can supply the free sample, but the shipping cost be paid by our customers. |
| Q2: How to start orders or make payments? |
| A: Proforma invoice will be sent first after confirmation of order, enclosed our bank information. Payment by T/T, Western Union |
| or Paypal or Escrow(Alibaba). |
| Q3: How to confirm the Product Quality before placing orders? |
| A:You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the |
| samples. You can send us your product specifications and requests,we will manufacture the products according to your requests. |
| Q4:What's your MOQ? |
| A:Our MOQ is 1kg or 10g(Different products have different MOQs). But usually we accept less quantity such as 10g on the condition that sample charge is 100% paid. |
| Q5: How about delivery leadtime? |
| A:Delivery lead time: About 3-5 days after payment confirmed. (Chinese holiday not included) |
| Q6:Is there a discount? |
| A:Different quantity has different discount. |
| Q7: How do you treat quality complaint? |
| A:First of all, our quality control will reduce the quality problem to near zero. If there is a real quality problem caused by us, |
| we will send you free goods for replacement or refund your loss. |
| Q8: How to contact us ? |
| A:You can chat with us by Trademanager,MSN&Skype Online. You can choose your interested products and send inquiry to us. You can dial our telephone directly, you will get our reply. Send Email to us. |
