Name: Silk Protein
Cas: 60650-88-6
Purity: 99%
MOQ: 1KG
Directory Guidance on Silk Protein
Basic Info
Silk Protein, also known as fibroin, is a natural high-molecular protein extracted from silk. It is mainly secreted by the silk glands of the silkworm (Bombyx mori) and is the main component of silk fiber. Silk protein is composed of 18 amino acids, among which glycine, alanine and serine are high in content. This unique amino acid composition gives silk protein excellent biocompatibility, degradability and mechanical properties.
From the chemical structure point of view, silk protein contains hydrophobic and hydrophilic regions, which makes it have good film-forming, moisture retention and adsorption properties. In addition, silk protein is rich in active groups and is easy to be chemically modified and functionalized. Due to its excellent physical and chemical properties and biological characteristics, silk protein is widely used in biomedicine, cosmetics, food science and textile industry, such as wound dressings, drug carriers, skin care additives and functional fiber materials. As a green and environmentally friendly natural raw material, silk protein shows great application potential in modern science and technology and industry.
Product Introduction
1. Silk Protein isoelectric point and amphoteric properties Silk protein contains amino and carboxyl groups that can interact and form bipolar ions, and has amphoteric characteristics. Silk protein is positive in solutions of lower pH, but negative in those with higher pH. The isoelectric points of silk proteins are: 3.8-4.5.
2. Silk protein colloidal properties A polymer compound, silk protein has a high molecular mass and a particle size of 1 to 100nm. The particle size falls within the colloidal range, which explains the unique properties of sol in terms of dialysis and coagulation.
3. Silk protein denaturation The properties of silk proteins are often altered by external factors such as physical or chemical influences, but the primary structure is not affected. The covalent bond of the peptide is not broken but the conformation of the molecule changes. This causes changes in properties. The main manifestations are changes in chemical and physical properties, and a loss of biological activity. Its most obvious manifestation is a decrease in its solubility. This will reduce the value of the product. Silk Protein is denaturized by temperature, pH and organic solvents.
4. Silk Protein Swelling and Dissolution Sericin, a polymer, will absorb liquid and automatically swell when it comes into contact with liquids. It can dissolve after infinite swelling. Silk protein is not soluble in water. It can swell, but it cannot dissolve. Silk Protein, however, can dissolve when heated. Sericin is a protein that is able to dissolve in hot water.
| MF: | |
| MW: | 0 |
| EINECS: | 1806241-263-5 |
| Item | Specification |
| Product Name | Silk Protein |
| CAS No. | 60650-88-6 |
| Appearance | Powder |
| Shelf Life | 2 years |
| Packing | As your requirements |
Product Packaging
Biomedical field
Silk protein has good biocompatibility, degradability and low immunogenicity, and is often used to prepare medical dressings, surgical sutures and tissue engineering scaffolds. Its porous structure and controllable degradation properties make it an ideal drug carrier for sustained-release drug delivery systems. In addition, silk protein can also be used to repair skin damage and promote cell growth, and has important potential in regenerative medicine.
Cosmetic field
Silk protein is rich in hydrophilic amino acids, has excellent moisturizing and film-forming properties, can effectively lock in moisture and improve skin elasticity. Therefore, it is often added to skin care products, facial masks and hair care products to repair damaged hair, enhance skin barrier function, and provide anti-aging and antioxidant effects.
Food science field
Silk protein is used as a functional food additive due to its high nutritional value and safety. It can be used as a protein supplement to enhance the nutritional content of food. At the same time, due to its film-forming and stability, it can also be used in the development of food packaging materials to extend the shelf life of food.
Textile industry sector
Silk protein is used to create high-performance fibers such as antibacterial fibres, intelligent thermoregulating fibers etc. The softness and excellent mechanical properties of silk protein make it a great raw material for high-end fabrics. It is widely used in clothing and home textiles.
Environmentally friendly materials
Silk protein, which is both biodegradable, and environmentally friendly, can be used to develop biodegradable films, plastics, and coatings. This reduces the environmental pollution that comes from petroleum-based materials.
Related References
If you are looking for high-quality Silk Protein, now is the best time! We not only provide you with very competitive prices, but also strictly guarantee the purity and stability of the products to the industry-leading level. At the same time, our comprehensive after-sales service will accompany you from procurement to use every link to escort your business.
Choose us, you will experience:
Excellent quality: products meet international standards, stability and purity are verified multiple times.
Professional service: quick response to needs, provide detailed technical support.
Long-term trust: we are committed to building lasting partnerships to help your business grow.
Please contact us now for more product details and exclusive quotes. Let us become your only choice for chemical raw material procurement and open a new chapter of cooperation together!
Manufacturer of Silk Protein
Zhishang Chemical is based in Shandong, serves the whole country, faces the world, and is determined to become an excellent supplier and service provider in the chemical industry.
As a top manufacturer of cosmetic raw materials, disinfectants, flavors and fragrances in China, we are committed to producing high-quality products and have won high praise from customers all over the world.
In the next 10 years or even longer, Zhishang will always adhere to the tenet of quality first and reputation first, and devote itself to providing customers with thoughtful and perfect services.
As a professional Silk Protein manufacturer, Zhi shang Chemical has served more than 6,000 customers around the world. Because of our high-quality products and professional services, we have won high praise from most of our customers.
Pre-Sales Service
* Timely reply and 24 hours online, the professional team will provide you with the most favorable prices and high-quality products.
* The sample supports testing and inspection.
* Each batch of products will be tested to ensure that its quality meets user needs.
*Packaging can also be made according to customer requirements.
*Any inquiries will be answered by our relevant personnel within 24 hours.
*We will provide you with commercial invoice, packing list, packing list, COA, health certificate and certificate of origin if you need it. If your market has other special requirements, please let us know.
After-Sales Service
*We will monitor the logistics information in real time and will share the information with you.
* You can consult us at any time if you have any questions about the product, and we will answer you in time.
*If you have any questions about the product, you can report it to us, we will deal with it in time for you, and the product can be returned.
DO YOU ACCEPT SAMPLE ORDER?
We will make samples before mass production. After the samples are approved by the department and users, we will start mass production. During the production process, we will carry out 100% inspection, and then carry out random inspection before packaging.
WHAT’S YOUR MOQ?
Our MOQ is 1kg. But usually we can also accept a smaller quantity, such as 100g, if you need it, provided that the sample fee is 100% paid.
IS THERE A DISCOUNT?
Different quantity has different discount.
HOW TO CONFIRM WHETHER THE PRODUCT QUALITY MEETS OUR NEEDS BEFORE PLACING AN ORDER?
You can consult us to get free samples of some products, you only need to pay the freight or arrange express delivery to us and get the samples. You can send us the product specifications and requirements you need, and we will manufacture products according to your requirements.
DO YOU SUPPLY PRODUCT REPORT?
Yes. We’ll give you product analysis report before shipping.
LEARN MORE ABOUT US
Shandong Look Chemical
1. For products ≤50kg, we recommend using express delivery, which is usually called DDU service (discounted, convenient).
2. For products ≤500kg, we generally recommend air freight, which is usually called FOB, CFR or CIF service (fast and efficient).
3. For products >500kg, we generally recommend shipping by sea, which is usually called FOB, CFR or CIF service (economical, safe).
4. For high-value products, please choose air or express to ensure the safety of product transportation.





