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sitosterol powder sitosterol phytosterol
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β-Sitosterol 85.0% min. GC 86.46% |
Total sterols 95.0% min. GC 95.17% |
(Brassicasterol 1.36%; Campesterol 7.90%; Stigmasterol 4.28%; Cholesterol meets the requirement) |
Item |
Standardization |
|
Result |
Aspect |
White or almost crystalline powder |
|
Complied |
Identification |
Positive |
|
Complied |
|
The retention time of the major peak confirms to that of the standard preparation |
|
Complied |
Solubility |
Practically insoluble in water, soluble in tetrahydrofuran, sparingly soluble in ethylacetate. |
|
Complied |
Loss on drying |
4.0% max. |
|
2.10% |
Ash |
5.0% max. |
|
Complied |
Acidity |
≤0.5ml |
|
Complied |
Peroxide value |
≤10mep/kg |
|
Complied |
Saponification value |
≤1.0ml |
|
Complied |
Heavy metals |
10ppm max. |
|
Complied |
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