|
ANALYSIS |
SPECIFICATION |
RESULTS |
|
Assay(Trans-Resveratrol, HPLC) |
¡Ý99.0% |
99.45% |
|
¡¡ |
|
Physical & Chemical Control |
|
Identification |
Positive |
Complies |
|
Appearance |
Light White-Yellow powder |
Complies |
|
Taste |
Characteristic |
Complies |
|
Melt point |
253¡æ¡«255¡æ |
254¡æ |
|
Solubility |
Soluble in ethanol, acetone, aether etc.; insoluble in
water. |
Complies |
|
Emodin (By HPLC) |
<0.06% |
0.02% |
|
Mesh Size |
80 mesh |
Complies |
|
Loss on Drying |
<5.0% |
2.20% |
|
Ash |
<1.5% |
0.16% |
|
Heavy Metal |
<10ppm |
Complies |
|
As |
<2ppm |
Complies |
|
Residual Solvents |
Eur. Pharm. |
Complies |
|
Pesticides |
Negative |
Negative |
|
¡¡ |
|
Microbiology |
|
Total Plate Count |
<500/g |
55/g |
|
Yeast & Mold |
<100/g |
<10/g |
|
E.Coli |
Negative |
Complies |
|
Salmonella |
Negative |
Complies |
|
¡¡ |
|
Conclusion |
Conform with specification |
|
Storage |
Store in cool & dry place. Do not freeze.
Keep away from strong light and heat. |
|
Shelf life |
2 years when properly stored |
