DIHYDROQUERCETIN works as an antioxidant in the biochemistry of oxygen free radicals. The antioxidant activity of DHQ arises from its ability to donate a hydrogen atom from molecular hydroxyl groups to a free radical, and yield a resonance-stabilized phenolic radical. Also, the amphiphilicity of the DHQ is related to the ability to trap chain-initiating radicals at the interface of the membranes, preventing progression of the radical chain reaction. In addition to radical scavenging properties of DHQ in aqueous and organic environments, the antioxidant activity of molecule arise from the protection or enhancement of endogenous antioxidants, as well as its ability to chelate transition metal ions, and inhibit the propagation of the lipoxygenase reaction.
Dihydroquercetin (taxifolin)is an antioxidant with many interesting pharmacological effects. It can also be found in buckwheat (Fagopyrum esculentum Moench). UV radiation stimulates the activity of enzymes of the phenylpropanoid pathway and there is some evidence that it influences the rutin content in plants.
6. Excellent sales team with 7day*24hours service, email can be replied within 12hours.
7. Fast and Safe shipment
Q1: Are you a manufacturer or trading company?
A1: Our company has 9 years experiences in producing Plant Extracts, but we also do trading business.
Q2: What's your MOQ( Minimum Order Quantity )?
A2: Our MOQ is 1kg.
Q3: What's your delivery time?
A3: For some products, we have stock, can ship immediately after getting payment. For products we don’t have stock, we produce within 7 days.
Q4: What about the shipping methods?
A4: For urgent order and light weight, you can choose the following express: UPS, FedEx, DHL, EMS. For heavy weight, you can choose to deliver the goods by air or by sea as you like.
Q5: What about the payment methods?
A5: We accept T/T, L/C for big amount, and for small amount, you can pay us by paypal, Western Union etc.
Q6: Can i get some samples? A: Yes, we can supply the free sample, but the shipping cost be paid by our customers.
Q7: How to start orders or make payments? A: Proforma invoice will be sent after confirmation of order, enclosed our bank information. Payment by T/T, Western Union or Paypal.
Q8 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.
Q9: 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.
Q10: How to contact us ? A:You can chat with us by Trademanager, Skype Online. You can choose your interested products and send inquiry to us. You can dial our telephone directly, you will get our reply.
Raw Material→Extract by Ethanol&Water / Water→Filter→Adsorption→Concentration→
Spray Drying→Smash →Sieving→Test on finished product→Pack→Stock in warehouse