Hebei Nengqian Chemical Import and Export Co., LTD
Assessed Supplier
- Assessed
Supplier - 4th
years
Assessed Supplier
Product Certification&
Enterprise Certification
Country: 
China (Mainland)
Business Type:Trading Company
Tel: 86-139-10575315
Tel: +86 15632961819
Tel: +86 18233902561
Tel: +86 15717685612
Tel: +86 16630923639
Tel: +86 18732968538
Tel: +86 18833033983
Tel: +86 19831957301
Mobile: +86 19831957301
Tel: 86-139-10575315
Fax: 4001020630
URL: https://www.nengqianchemical.com/
Province/state: Hebei
City: Handan
Street: Congtai District, La Defense North
MaxCard:
Ms.AnnaCAS NO.9001-73-4
Pharmaceutical grade(1-50)KilogramPharmaceutical grade(51-99)Kilogram
Our Advantage
Rich Experience
Our products are sold all over Europe,North&South America, Sino-East, Asia and pacific area as well as Africa,we establish long term.
Quality service
Company cooperates with research institutes. We strictly control the process of raw materials up to finished product.
24 hour service
Quick and clear response to customers questions. Warm after sale service, we will help to solve the problems in your usage.
High quality
Dedicated to serving customers first, we provide reasonable prices, high quality products.
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.
| Molar Mass | 226.23246 |
| Flash Point | 29 °C |
| Water Solubility | Soluble in water, insoluble in most organic solvents. |
| Solubility | H2O: soluble1.2mg/mL |
| Appearance | White to beige powder |
| Color | almost white |
| Merck | 7016 |
| Storage Condition | 2-8°C |
| Stability | Hygroscopic |
| MDL | MFCD00131791 |
| Physical and Chemical Properties | White to light brown yellow amorphous powder, with certain hygroscopicity, or liquid. Soluble in water and glycerin, the aqueous solution is colorless to light yellow, sometimes milky white, almost insoluble in organic solvents such as ethanol, chloroform and ether. The commercial enzyme preparation made from papaya contains the following three enzymes:(1) papain, with a molecular weight of 21000, accounting for about 10% of soluble protein; (2) papain chymapsin, with a molecular weight of 36000, accounting for about 45% of soluble protein;(3) Lysozyme, with a molecular weight of 25000, accounts for about 20% of soluble protein. Its main function is to have a strong ability to decompose proteins with water. The optimum temperature is 65 ℃, and the optimum pH value is 5.0~7.0. It also works when it is neutral or alkaline. It has strong heat resistance and can be used at 50~60 ℃. It will not be completely inactivated at 90°C. Isoelectric point pH8.75. |
| Use | Additives for the pharmaceutical, food and cosmetic industries |
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.
| Introduction | Papain is a kind of endopeptidase containing a hydrophobic group (-SH), which has the activity of protease and esterase, it has a wide range of specificity, and has a strong ability to hydrolyze animal and plant proteins, peptides, esters, amides, etc. At the same time, it also has a synthetic function, which can synthesize protein hydrolysate into protein. Soluble in water and glycerol, colorless or light yellow aqueous solution, sometimes milky white; Almost insoluble in ethanol, chloroform and ether and other organic solvents. The most suitable pH value of 5.7 (generally 3~9.5 can be), in the neutral or acidic also have a role, isoelectric point of 18.75; the most suitable temperature is 55 to 60 degrees C (generally 10 to 85 degrees C), strong heat resistance, at 90 degrees C will not be completely inactivated; By the oxidant inhibition, reducing material activation. The enzyme dried without clarification is a crude enzyme. |
| trait | Papain is a white to light yellow amorphous powder with some hygroscopicity or liquid. Soluble in water and glycerol, aqueous solution colorless to light yellow, sometimes milky white, almost insoluble in ethanol, chloroform and ether and other organic solvents. |
| Use | Papain is suitable for the hydrolysis of fish, shellfish and other aquatic products. enzyme preparation. Mainly used for beer cold (hydrolysis of protein in beer, avoid turbidity caused by cold storage), meat softening (hydrolysis of muscle protein and collagen, meat tenderness), preparation of pre-cooked cereals, production of hydrolyzed proteins. The application in beer cold resistance and meat softening is far more extensive than other proteases. The dosage is generally 1~4 mg/kg. Papain is widely used in meat tenderness, and can also be used as a clarifier for beer. China's provisions can be used for biscuits, meat and poultry products hydrolysis and animal, plant protein, according to the production needs of appropriate use. used in medicine, food industry and cosmetics additives biochemical research enzyme preparation, Papain is widely used in meat tenderness, can also be used as a beer clarifier. An important cysteine protease for polypeptide synthesis. Fab fragments for the production of antibodies; Since there is little damage to certain tissues, they are also used for cell lysis. Cleaved amino acid (or glycine). papain can activate fibrinogen to plasmin. It acts only on necrotic tissue, dissolving fibrin, blood clots and necrotic substances in the lesion. Clean the wound, promote new granulation, promote drainage. Accelerated wound healing. Papain is often used to treat diseases such as edema, inflammation, and anthelmintic (nematode) diseases. But after the drug has mild dermatitis and local bleeding, pain. Repeated use can cause allergic reactions. Severe liver and kidney disease patients with caution, blood coagulation insufficiency and systemic infection patients not to use, avoid with anticoagulant compatibility. Oral, 1~2 units each time. |
| Application | Papain is mainly used in the following aspects: I. Food industry: using the enzymatic reaction of papain, it can hydrolyze large molecular proteins into small molecular peptides or amino acids that are easily absorbed in food, and is widely used in animal and plant proteolysis such as chicken, pig, cattle, seafood, blood products, soybean, peanut, etc, meat tenderness agent, wine clarifier, biscuit relaxant, noodle stabilizer, health food, soy sauce brewing and wine fermentation agent, etc., can improve the nutritional value of food, and can reduce the cost. 2, biscuit industry: reduce the dough wet gluten, improve dough plasticity and physical and chemical properties, while the protein macromolecules are hydrolyzed into short peptides and amino acids, this is conducive to the complex Maillard reaction of sugars and amino substances, so that the product is colored quickly, the color is pleasant and the oil is smooth and bright |
| preparation method | Papain (Papain) short for Papain, is the use of immature papaya (Carica papaya) fruit milk, pure natural biological enzyme products extracted by modern biological engineering technology. |
| production method | dried papaya emulsion diatomite; Sand; 0.04mol · L-1 cysteine → extract, filter crude extract NaOH; ph9 → precipitate except pH 9 insoluble supernatant, (NH4)2SO{4 → precipitate; Precipitate by centrifugation: 0.02mol · L-1 cysteine; Ph7 → dissolved solution NaCl (solid) → precipitate; centrifugal precipitation of 0.02mol · L-1 cysteine; Ph6.5 → dissolved solution freezing, centrifugation and recrystallization solution 40 → freezing; Centrifugal crystallization ^ H2O; naCl → recrystallized product The latex was extracted from the unripe papaya fruit, and the product was prepared by sedimentation, coagulation and drying. The crude product is obtained from the immature fruits of Caric papaya by extraction of emulsion, coagulation, sedimentation and drying. In general, the application of crude products is the main industry. |
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.