Vitamin E refers to a group of eight fat-soluble compounds that include both tocopherols and tocotrienols. Of the many different forms of vitamin E, γ -tocopherol is the most common in the North American diet. γ -Tocopherol can be found in corn oil, soybean oil, margarine, and dressings. In the North American diet, α -tocopherol, the most biologically active form of vitamin E, is the second-most common form of vitamin E. This variant can be found most abundantly in wheat germ oil, sunflower, and safflower oils
3. Functions
· As an antioxidant, vitamin E acts as a peroxyl radical scavenger, preventing the propagation of free radicals in tissues, by reacting with them to form a tocopheryl radical, which will then be reduced by a hydrogen donor (such as vitamin C) and thus return to its reduced state.
· As an enzymatic activity regulator, for instance, protein kinase C (PKC), which plays a role in smooth muscle growth, can be inhibited by α -tocopherol.
· Vitamin E also has an effect on gene expression. Macrophages rich in cholesterol are found in the atherogenetic tissue.
· Vitamin E also plays a role in neurological functions, and inhibition of platelet aggregation
· Vitamin E also protects lipids and prevents the oxidation of polyunsaturated fatty acids.
| Items |
Standards |
Results |
| Appearance |
Slightly Yellow,Clear,Viscous Oil |
Qualified |
| Assay by G.C |
98.0%~101.0% |
98.0% |
| Identity |
Corresponds |
Qualified |
| Density |
0.952-0.966 g/ml |
0.958g/ml |
| Refractive Index |
1.494-1.498 |
1.494 |
| Absorbance in ethano |
| At about 284nm(max.) |
42.0-45.0 |
43.8 |
| At about 254nm(min.) |
7.5-9.0 |
8.3 |
| Acidity |
max.1.0mL of 0.1N NaOH |
0.05mL |
| Sulphated Ashes |
max.0.1% |
0.06% |
| Microbiological Spec |
| Total Plate Count |
≤1000cfu/g |
Conforms |
| Yeast & Mold |
≤100cfu/g |
Conforms |
| E.Coli |
Negative (In 10g) |
Non-detected |
| Salmonella |
Negative (In 25g) |
Non-detected |
| Heavy Metals |
max. 10ppm |
Less than 5ppm |
| Lead |
max. 2ppm |
0.09ppm |
| Arsenic |
max. 3ppm |
Less than 1ppm |
| Free Tocopherol |
max. 1.0% |
1.0% |
| Organic Volatile Impurities |
Meets USP Requirements |
Qualified |
| ( Actual Tested Results: Comply With USP32 Standard ) |
Polifar's focus on vitamins export would love to bring your purchase more covenient.
Audited Supplier 
){kind=link}
){kind=link}