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Product Name: | Beta sitosterol powder |
Spec./Purity: | Beta sitosterol 85% |
Appearance: | White powder |
Shelf Life: | 2 years |
MOQ: | 1kg |
Analysis | Specification | Result | ||
Physical Description | ||||
Appearance | A white or almost white, crystalline powder, practically insoluble in water, soluble in tetrahydrofuran, sparingly soluble in ethyl acetate. | Complies | ||
Acid value (mg KOH/g) | 1.0ml Max | 0.32ml | ||
Specific optical rotation | -15~ -28° | -27° | ||
Acidity | 0.5ml Max | 0.23ml | ||
Chemical Tests | ||||
Identification | ||||
1. Color reaction | 1. Positive | Complies | ||
2. Retention time | 2. The retention time of the major peak complies with that of the standard preparation | Complies | ||
Assay | β-Sitosterol 70% Min | 85.45% | ||
Brassicasterol | 0.36% | |||
Campesterol | 6.82% | |||
Stigmasterol | 2.42% | |||
Cholesterol | Complies | |||
Total sterol 95% Min | 95.1% | |||
Peroxide value | 10.0mep/kg Max | 3.7mep/kg | ||
Saponification value | 1.0ml Max | 0.2ml | ||
Total ash | 5.0% Max | Complies | ||
Loss on drying | 4.0% Max | 2.32% | ||
Heavy metals | 10.0ppm Max | Complies | ||
Conclusion | Complies with the Standard. | |||
General Status | Non-GMO, Non-irradiation, ISO. | |||
Packing and Storage | ||||
Packing: Pack in paper-carton and two plastic-bags inside. | ||||
Shelf life: 2 year when properly stored. | ||||
Storage: Store in a well-closed place with constant low temperature and no direct sun light. |
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