Powder in light white or light yellow , liable to deliquesce
Light yellow, liable to deliquesce
PH Value
5-7
5.7
Loss on drying (%)
≤ 5
4.0
Residue on Ignition (%)
≤ 5
3.3
Nitrogen (%)
≥ 14
14.9
Heavy Mental
(pb,mg/kg)
≤ 10
< 10
Arsenic (As ,mg/kg)
≤ 2
< 2
Number of Aerobic Bacterial
≤ 300
< 100
Pathogenic Bacteria
Can’t be detected
Can’t be detected
Result : the test result comply with all of about mentioned specification
Definitions of the product: The product is water soluble polypeptide formed by degradation of silk protein (fibroin) with average molecular weight between 500-10000, white powder and good water solubility, with pH value between 4.5 to 6.5 and positive ninhydrin reaction.
·Application characteristics: 1. Function of natural moistening, nourishing skin and promoting healing of skin wounds: Application of skin protecting products enriched with silk peptide on skin can reach the effects of facial beautification and preventing many skin diseases. Clinical trials show that silk peptide have good therapy effects for several dermatosis, such as Skin Cracks, Dermatitis, Pruritus and Chloasma. The experimental results show that silk peptide has no irritability and can accelerate healing of wounds. It can prevent corrosion and damage of dusts, coating, acid and alkaline chemical substances on skin.
2.Very excellent hair-protecting function: The protection for hair includes absorbability and adsorption, membrane, moisture retention.
3. Absorbability and Adsorption: Compared to other protein hydrolysate peptide (protein collagen, bone glue protein, gelatin proteins, etc), silk peptide is nutrient-rich but can be easily absorbed by hair. Skin and hair absorb silk peptide directly and mainly by infiltration. When silk peptide concentration increases, the hair’s absorption for silk peptide will increase corresponding. For injury hair with greater adsorption capacity for the low molecular weight silk peptides, the corresponding effects for silk peptide on hair restoration and protection will be more obvious. The silk peptide whose molecular weight ranges between 500 and 2,000, is better at making membrane, the membrane has nice luster, feels well and spring. The method of X-radial experiment showed that the membrane made from silk peptide is β-model crystal, so that the membrane covered on the hair can be hardly washed out. This is the theory of the method how the silk peptide can protect the hair. The membrane not only avoid the damnification by the chemical material, but also can enhance the spring and glare of the hair. The membrane can finalize the shape. Compared to PVP, glue peptide and amylum under 80%RH, the silk peptide is the best in keeping the hairstyle.
4. Moisture adjusting and keeping: The hair will be dry,spliting,easy to break and drop if losing some moisture.There are many hydrophilic genes, such as -OH, -COOH, -NH2, >NH, on the surface of the solid construct of its molecule. This structure shows that the silk peptide can allocate wet gene equally, and has good action of keeping hair moist and smooth.
Specification
Items
Index (Food Grade)
Index (Common Grade)
Appearance
White powder, deliquescence in air, none special odor.
Jasmine liquid, none special odor.
Differentiation
Positive ninhydrin reaction
Positive ninhydrin reaction
Total nitrogen
≥14.5%
≥2.8%
Weight Loss on drying
≤4.0%
Residue on ignition
≤3.0%
1.0%
pH value
4.5-6.5
3.0-7.0
Average Molecular Weight
500-2000D
500-2000D
Solid Content
≥20%
Heavy Metal (as Pb)
≤5.0ppm
≤1.0ppm
As
≤1.0ppm
≤0.5ppm
Bacteria
≤100/g
≤100/g
Coli Group (MPN)
≤30/100g
≤30/100g
Pathogenic Bacteria
No detection
No detection
Packaging & Shipping
Packaging:25Kg/Fiber drumwith 2 layers PE bags.
Shipping methods: We offer several delivery services to suit all customer needs, such as DHL, FEDEX, TNT, EMS, AIR freight ,china post , SEA freight and others.
Our Services
We have the following advantages and service
1.A novel R&D center with advanced ventilation equipments and modern experiment equipments.
2.Two Large production factories with high capacity and meet the requirements of GMP.
3.Two warehouses in Shanghai China and Colorado USA.
4.Supplying the products from our manufacturers;
5.Custom synthesis of new products;
6.Help sourcing products and suppliers in China;
7.Assist the export and related affairs.
8.Stable quality,professional production & technology;
9.The most competitive price;
10.Steady supply, rapid delivery;
11.Perfect service, honest cooperation.
Company Information
We are focus on manufacture and supply raw materials on nutritional ingredient, pharmaceutical Intermediate, cosmetics and related industries .
We has two manufacturing sites located in Shanxi and Fujian, as well as the stable and reliable supplying channel to cater the pharmaceutical and food industries globally. We are manufacturing strictly according to GMP requirement, besides the GMP approval of SFDA, some of products abtained FDA approval, COS certificate.
Our two manufacturing sites and reliable supplying channel, a science and technology research team has developed hundreds of ingredients during the past decade till today, cover areas from Nutritional Ingredient to pharmaceuticals intermediates .
In addition, we can offer special services as an agent on purchase and sales as well. We provide many common ingredients, and specialize in the sourcing and supply of materials which are hard to find, or scarce in the market place. we can offer special services as an agent on purchase and sales as well.
