Silk Fibroin Powder

Product description

Silk fibroin powder is a natural polymer fibrin extracted from silk, accounting for about 70% to 80% of silk, and contains 18 kinds of amino acids, glycine (Gly), alanine (Ala) and serine (Ser) about more than 80% of the total composition. Silk fibroin has good properties such as flexibility, sustained release, air permeability, moisture permeability and tensile strength. After processing, it can be obtained in different forms such as fiber, solution, powder, film, and gel.

Silk fibroin is a kind of powdery polymer silk fibroin protein obtained by selecting the silk fibroin after high pressure degumming, processing it by a special process, and then using physical methods to pulverize it. The molecular weight is approximately 250,000. Tasteless, odorless, slightly soluble in water, insoluble in alcohol ether.

We are a supplier with 10 years of production experience and 8 years of export experience. Professional business team and quality inspection R&D team, product quality assurance and ex-factory price, have very good advantages in price and production, all our products are available in stock to ensure delivery speed.

Variety specifications:

Main indicators:

Function

1. It has high nutritional value and is a nutrient with outstanding functions;

2. Helps to promote the metabolism of alcohol in the human body and protect the liver;

3. In addition to piercing the inside of the cuticle, it can also repair and care for injured hair;

4. It can maintain and regulate moisture, prevent skin from UV radiation, inhibit splash, and promote skin anti-aging.

Application direction

A high molecular weight, water-soluble silk protein. Silk powder has excellent natural moisturizing and skin care functions, can prevent partial ultraviolet radiation, prevent and treat some skin diseases caused by various dryness and wetness. It has a super strong effect and is used to prevent the production of sunlight.

And it also has a unique oil-absorbing ability, so it is suitable for cosmetics for oily skin. Particle sizes from 5um to 100um are available in a variety of sizes.

(1) There are hydrophilic groups in the silk structure, which is an excellent natural humidity control factor. A very thin silk powder layer is attached to the surface of the skin, which can absorb or release water with changes in skin temperature and humidity. This has a certain preventive effect on the skin's prevention and treatment of various skin problems caused by moisture or dryness.

(2) Its crystalline structure can reflect part of ultraviolet rays, and the holes formed by its spiral structure can absorb part of ultraviolet rays, so the combination of silk powder and sunscreen agent in sunscreen products has better sunscreen effect.

(3) It has a unique ability to retain oil, so it is also very suitable for oily skin cosmetics.

(4) Its structural characteristics can help reduce reflected light. When used in mica powder-based cosmetics, it can reduce reflected light and make it naturally reveal realistic and soft colors. Compared with talc and titanium dioxide, Silk powder has excellent air permeability, and cosmetics containing silk powder feel smooth after use.

Overview

In 1993, it was recognized as a biological material by American Foods. Compared with other natural biopolymers, silk fibroin has excellent mechanical properties and good biocompatibility, biodegradability, and versatility in structure adjustment, so it has a promising development prospect. These favorable properties are due to its unique physicochemical properties.

Chemical composition and structure of silk fibroin

The relative molecular weight of silk fibroin is relatively large, and the molecular structure and intermolecular interactions are very complex. Generally speaking, the silk fibroin molecular chain consists of three subunits, namely the heavy chain (H-chain), the light chain (L-chain) and the glycoprotein. P25 composition. The heavy and light chains are linked by disulfide bonds, and then bind to glycoprotein P25 by non-covalent interactions such as hydrophobic bonds.

The heavy chain (H chain) consists of 5236 amino acid residues with a molecular weight of 391kDa; the light chain (L chain) consists of 266 amino acid residues with a molecular weight of 28kDa: the P25 protein is similar in size to the light chain, about 25kDa. The ratio of heavy chain, light chain and P25 in silk fibroin is about 6:6:1.

Silk fibroin of Bombyx mori is composed of 18 amino acids, of which glycine (Gly, 43%), alanine (Ala, 30%) and serine (Ser, 12%) account for about 85%.

The main crystal structures of silk fibroin are Silk I and Silk II. A small and unstable Silk III structure was also present in the regenerated silk fibroin solution at the air/water interface. Silk I includes helical and other non-β-sheet conformations, while Silk II structures mainly refer to antiparallel β-sheet conformations.

Company introduction and certificates obtained

YTBIO mainly supplies herbal extracts, functional cosmetic raw materials, organic products, etc. The company was established in 2014 and has many years of R&D and production experience. We are committed to the research and development, production and sales of raw materials for the 21st century health industry. The certificates obtained so far include ISO9001, ISO22000, HALAL, KOSHER, HACCP, FDA etc. We always maintain the highest requirements for product quality.