Specifications: Polyphenols 95%
Proanthocyanidins OPC 95%, 98%
The major functional composition in grape is grape polyphenol including proanthocyanidins. Besides, there are some other ingredients, like glucose, fructose, sucrose, xylose, tartaric acid, oxalic acid, citric acid, malic acid and singlAbstract:
CAS No.: 84929-27-1
Botanical Source: Vitis vinifera L.
Part Used: Seed
Appearance: Red-brown fine powder
Specifications: Polyphenols 95%
Proanthocyanidins OPC 95%, 98%
Main Chemical Composition of Grape Seed Extract
The major functional composition in grape is grape polyphenol including proanthocyanidins. Besides, there are some other ingredients, like glucose, fructose, sucrose, xylose, tartaric acid, oxalic acid, citric acid, malic acid and single glucoside & glucobioside of all kinds of anthocyanidin.
Polyphenols
There are mainly 4 kinds of polyphenol substances in grape: Tannin, anthocyanidin, phenolic acid and flavonoids. The vital polyphenols in grape is the same kind as flavonoids type, including flavane-3, 4-diol, flavonoids tannin, flavonoids, flavonol, flavanol, chalcone and anthocyadin, etc. Anthocyanidins in grape are mainly as anthocyanin, methyle anthocyanin, petunidin, malvin and dephinidin, existing in common by dimmer or bigger molecule. The composition of flavonol kind in grape is major for quercetin in ordinary form. Proanthocyanidins are major ingredients in grape seed & grape skin, also the most kind in polyphenol content, mainly existing by dimer or polymer form.
E glucoside & glucobioside of all kinds of anthocyanidin.
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| CERTIFICATE OF ANALYSIS |
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Report Date |
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2-Mar-14 |
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Expiry Date |
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24-Feb-16 |
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Manufacture Date |
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25-Feb-14 |
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| Product Name |
Grape Seed Extract |
Batch Number |
GSE-140225 |
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| Botanical Source |
Vitis vinifera L |
Batch Quantity |
200kgs |
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| Plant Part Used |
Seed,100% Natural |
Country of Origin |
China |
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| Type of Products |
Standard Extract |
Active Ingredient markers |
Polyphenols, Proanthocyanidins |
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| Analysis Items |
Specifications |
Results |
Methods used |
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| Identification |
Positive |
Conforms |
TLC |
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| Appearance |
Fine Reddish Brown Powder |
Conforms |
Visual test |
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| Odor & Taste |
Characteristic |
Conforms |
Organoleptic test |
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| Bulk Density |
45-55g/100ml |
Conforms |
ASTM D1895B |
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| Particle Size |
100% through 80 Mesh |
Conforms |
AOAC 973.03 |
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| Solubility |
Good Soluble in Water |
Conforms |
Visual |
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| Assay |
NLT 90% Polyphenols |
92.25% |
UV |
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| Loss on Drying |
NMT 5.0% |
3.27% |
5g /105c /2hrs |
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| Ash Content |
NMT 5.0% |
3.45% |
2g /525c /3hrs |
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| Extract Solvents |
Ethanol & Water |
Conforms |
/ |
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| Solvent Residues |
NMT 0.05% |
Conforms |
GC |
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| Excipients |
None |
Conforms |
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| Heavy Metals |
NMT 10ppm |
Conforms |
Atomic Absorption |
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| Arsenic (As) |
NMT 2ppm |
Conforms |
Atomic Absorption |
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| Lead (Pb) |
NMT 0.5ppm |
Conforms |
Atomic Absorption |
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| Cadmium (Cd) |
NMT 0.05ppm |
Conforms |
Atomic Absorption |
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| Mercury(Hg) |
Not Detected |
Conforms |
Atomic Absorption |
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| 666 |
NMT 0.1ppm |
Conforms |
USP-GC |
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| DDT |
NMT 0.1ppm |
Conforms |
USP-GC |
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| Acephate |
NMT 0.1ppm |
Conforms |
USP-GC |
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| Methamidophos |
NMT 0.2ppm |
Conforms |
USP-GC |
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| Parathion-ethyl |
NMT 0.2ppm |
Conforms |
USP-GC |
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| PCNB |
NMT 10ppb |
Conforms |
USP-GC |
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NMT 0.2ppb |
Absent |
USP-HPLC |
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| Sterilization Method |
High temperature & pressure for a short time of 5-10 seconds |
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| Microbiological Data |
Total Plate Count < 1000cfu/g |
< 1,000 cfu/g |
GB 4789.2 |
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| Total Yeast & Mold < 100cfu/g |
< 100 cfu/g |
GB 4789.15 |
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| E. Coli to be absent |
Absent |
GB 4789.3 |
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| Staphylococcus to be absent |
Absent |
GB 4789.10 |
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| Salmonella to be absent |
Absent |
GB 4789.4 |
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| Packing and Storage |
Packed in fiber drum, LDPE bag inside. Net weight: 25kgs/drum. |
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| Keep tightly sealed, store away from moisture, strong heat and sunlight. |
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| Shelf Life |
2 years if sealed and stored in the recommended conditions. |
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| Inspector: |
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Supervisor: |
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Manufacturer: KINGHERBS LIMITED |
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Audited Supplier 
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