Details:

Our advantage:

1. High quality with competitive price:

1) Standard:BP/USP/EP/Enterprise standard

2) All Purity≥99%

3) We are manufacturer and can provide high quality products with factory price.

 2, Fast and safe delivery

1) Parcel can be sent out in 24 hours after payment.Tracking number available

2) Secure and discreet shipment.Various transportation methods for your choice.

3) Customs pass rate ≥99%

4) We have our own agent/remailer/distributor who can help us ship our products very fast and safe,

and we have stock in there for transferring.

Solubility	Dissolves readily at 5 mg/mL in 0.05 M potassium phosphate buffer, pH 7.8, containing 0.1 mM EDTA.
Appearance	powder
Color	blue-gray
Storage Condition	-20°C
MDL	MFCD00132404
Physical and Chemical Properties	The main function of superoxide dismutase is to specifically remove the superoxide anion O-2 in the body, so as to relieve the damage to the body caused by the oxidation of the components in the body by the oxygen anion. Its half-life is short, usually only 6~10min. The relative molecular mass is large, it is not easy to penetrate the cell membrane, and it is easy to be inactivated by the action of protein-not-enzyme. Therefore, clinical application is limited. The enzyme is an acidic protein, which is relatively stable and heat-resistant. Ph7.6 ~ 9 stable, below ph6 and above 12h unstable. Especially extremely unstable below ph2. It has strong ability to resist pepsin and trypsin hydrolysis. There is no immune regulation and analgesic effect, and it does not affect the synthesis of prostaglandins and other inflammatory mediators.
Use	Superoxide dismutase from bovine erythrocytes has been used in a study to assess a kinetic model of radiation-induced inactivation of superoxide dismutase in nitrous oxide-saturated solutions. Superoxide dismutase from bovine erythrocytes has also be

 Nature

Open Data Verified Data

• solid powder. This product is a peptide macromolecular metalloenzyme isolated from red blood cells, liver and other mammalian tissues, containing two subunits. According to its metal cofactor is divided into three types; Containing copper and zinc, the relative molecular mass of 32000, containing manganese relative molecular mass of 40000, containing iron relative molecular mass of about 40000. China's current products are mainly extracted from pig red blood cells in Cu-Zn-SOD. 0.32% Copper.
• The main function of superoxide dismutase is to specifically remove superoxide anion 02 in the body, thereby relieving damage to the body caused by oxidation of components in the body by the oxygen anion. Its half-life is short, usually only 6~10 min. Large molecular weight, not easy to penetrate the cell membrane, oral easily inactivated by proteolytic enzymes, so the clinical application is limited. The enzyme is an acidic protein that is relatively stable and heat-resistant. pH 7.6~9 stable, pH 6 and 12 above unstable, especially in the pH 2 below the very unstable. It has strong anti-pepsin and trypsin hydrolysis ability. There is no immune regulation and analgesic effect, and it does not affect the synthesis of inflammatory mediators such as prostaglandins.

Preparation Method

Open Data Verified Data

fresh porcine blood was collected and centrifuged to remove yellow plasma. The obtained red blood cells were washed with a sodium chloride solution by centrifugation, and the washing liquid was removed. This repeated washing 3 times, get clean red blood cells. Deionized water was added to clean red blood cells at 5 °c and stirred at 0. After 5H, 25ml of ethanol and 15ml of chloroform were added to each 10 ml of red blood cell solution, stirred for 15 min, centrifuged to remove hemoglobin, and the supernatant was collected. At 0 ° C., 1. 2 to 1.5 times the volume of acetone was added to the supernatant, and a large amount of precipitate was generated and centrifuged. The precipitate was dissolved in deionized water, centrifuged to remove insoluble proteins, and the supernatant was heat-treated at 55-65 °c for 10-15min, centrifuged to remove a large amount of heat-denatured proteins, and the yellow-green supernatant was collected. At 0 °c, an appropriate amount of acetone was added to the supernatant to precipitate and centrifuged. The precipitate was dissolved in deionized water, centrifuged to remove insoluble proteins, and the clear solution was dialyzed in a dialysis bag for 6-8 hours. The dialysate was added to the pH 7.6 phosphate buffer equilibrium DEAE-Sephadex A- 50 Column adsorption, and then pH 7.6 potassium phosphate buffer (2.5~50mmol/L) gradient elution, collecting eluate, ultrafiltration, concentration, freeze drying, that is, the superoxide dismutase product.

 

Product Packaging：

1) 1kg/bag (1kg net weight, 1.1kg gross weight, packed in an aluminum foil bag)

2) 25kg/drum (25kg net weight, 28kg gross weight; Packed in a cardboard-drum with two plastic-bags inside; Drum Size: 510mm high, 360mm diameter)

 Storage：

Stored in a cool and dry well-closed container. Keep away from moisture and strong light/heat.

Delivery：

Usually within3-5 working days after full payment.

transport：

EMS,DHL, TNT, UPS ,FEDEX, BY AIR, BY SEA

DHL Express, FedEx and EMS for quantity less than 50KG, usually called as DDU service; 

Sea shipping for quantity over 500KG; And air shipping is available for 50KG above;

For high value products, please select air shipping and DHL express for safe;

Our Service:
1. Fast Delivery: We can delivery within 24 hours upon receipt of your payment.
2. Quality can be promised. Hot sell to Worldwide.
3. Payment Terms: T/T,, t/t
4. Free Sample available at any time.
5. Tracking your order at any time. Inform your order's further new situation at any time.
6. Package: Professional packing with professional materials.

 

Packing:  
  1. Inner double plastic bags----25kg/Fiber drum (35*35*45cm, GW: 28kg, NW: 25kg); 

  2. Inner double plastic bags----5kg/Aluminum foil bag (GW: 6.5kg, NW: 5kg). 

  3. Inner double plastic bags----1kg/Aluminum foil bag (GW: 1.5kg, NW: 1kg). 

P.S.: we accept packaging customization. 

  
Delivery:   

  1. Stock products are normally shipping within 3 working days.  

  2. For rush delivery, please contact our sales team for particular arrangement. 

Shipping Details: 
  1. We ship goods via DHL, Fedex, UPS, TNT, China post, NL Post and other couriers, weight from 10g to 1000kg or even bulker. 

  2. Shipping details & shipping documents will be provided and sent by email. 

  3. We keep tracking the shippment until clients well received. 

  4. After years export shipping experience, with professional and experienced cooperated forwarders, we ensure that goods can be delivered in multiple ways safetly and efficiently. 

About us

Our company specializes in processing and selling chemical raw materials, chemical products, pharmaceutical intermediates, veterinary medicine intermediates, dye intermediates, pigments, cosmetics raw materials and chemical reagents,  

We have compalete sales and service team , information feedback vertical integration of a sound marketing network, products are sold throughout the country and exported to South Asia, Europe, America, Africa and other more than 20 countries and regions.  

Companies adhering to the "pursuit of quality, innovation and development" business philosophy, to serve as a foundation, for the survival by the quality, seek development by science and technology, adhere to quilty comes first,fair price,good sense of customer service and responsibility. in the future hebei Nengqian import and export trade Co.,Ltd will always hold "integrity, innovation" business philosophy, to achieve honesty management, on the way of specialization, internationalization,  Keep moving!  

 

FAQ: 
1. Are you a trade company or factory   
We are a  factory with our own trading company.  

2.How do you control the quality   
Our factory is equipped with professional technicians to control quality, out inspectors take sample for testing every 2 hours to ensure the quality of our production. We also accept BV, SGS or any other Third-party inspection.   

3. How long is lead time   
We deliver goods within 3 days for small order, 7-10 days for bulk order.   

4. Where is your factory located  How can I visit the factory   
 Our factory located in HEBEI, China.

5. Can i get some samples  
  Yes, we can supply free sample, but the shipping cost be paid by our customers. 

6. How to start orders or make payments  
  Proforma invoice will be sent first after confirmation of order, enclosed our bank information.Payment by T/T,  

7. How to confirm the Product Quality before placing orders  
  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. 

8. How long is lead time

We deliver goods within 3 days for small order, 7-10 days for bulk order.

 

9. How do you treat quality complaint

  First of all, our quality control will reduce the quality problem to near zero. If there is a realquality problem caused by us, we will send you free goods for replacement or refund your loss.