China Debitterize Vine Tea Dihydromyricetin (DMY) 50%-98% (HPLC), Find details about China Dihydromyricetin, Vine Tea Extract from Debitterize Vine Tea Dihydromyricetin (DMY) 50%-98% (HPLC)
Analysis Items | Specifications | Results | Methods used | ||||
Identification | Positive | Conforms | TLC | ||||
Appearance | Fine off-white to white powder | White powder | Visual test | ||||
Odor & Taste | Characteristic,Special Sour | Conforms | Organoleptic test | ||||
Bulk Density | 45-55g/100ml | 46g/100ml | ASTM D1895B | ||||
Particle Size | 99% through 80 Mesh | Conforms | AOAC 973.03 | ||||
Solubility | Easy soluble in hot water,ethanol,acetone, soluble in ethanol,methanol,insoluble in chloroform, petroleum ether. | Conforms | Visual | ||||
Heat test | Stable bellow 100ºC, Irreversible oxidation reaction happens above 100ºC | Conforms | In house | ||||
Assay | NLT 98% Dihydromyricetin | 98.61% | HPLC | ||||
Loss on Drying | NMT 5.0% | 1.20% | 5g /105ºC /2hrs | ||||
Ash Content | NMT 2.0% | 0.50% | 2g /525ºC /3hrs | ||||
Extract Solvents | Ethanol & Water | Conforms | / | ||||
Solvent Residues | NMT 0.05% | Conforms | GC | ||||
Excipients | None | Conforms | / | ||||
Heavy Metals | NMT 10ppm | Conforms | Atomic Absorption | ||||
Arsenic (As) | NMT 2ppm | Conforms | Atomic Absorption | ||||
Lead (Pb) | NMT 2ppm | Conforms | Atomic Absorption | ||||
Cadmium (Cd) | NMT 0.5ppm | Conforms | Atomic Absorption | ||||
Mercury(Hg) | NMT 0.2ppm | Conforms | Atomic Absorption | ||||
666 | NMT 0.1ppm | Conforms | USP-GC | ||||
DDT | NMT 0.5ppm | Conforms | USP-GC | ||||
Acephate | NMT 0.2ppm | Conforms | USP-GC | ||||
Methamidophos | NMT 0.2ppm | Conforms | USP-GC | ||||
Parathion-ethyl | NMT 0.2ppm | Conforms | USP-GC | ||||
PCNB | NMT 0.1ppm | Conforms | USP-GC | ||||
NMT 0.2ppb | Absent | USP-HPLC | |||||
Sterilization Method | High temperature & pressure for a short time of 5~10 seconds | ||||||
Microbiological Data | Total Plate Count<1,000cfu/g | < 300 cfu/g | GB 4789.2 | ||||
Total Yeast & Mold<100cfu/g | < 40 cfu/g | GB 4789.15 | |||||
E. Coli be absent | Absent | GB 4789.3 | |||||
Staphylococcus to be absent | Absent | GB 4789.10 | |||||
Salmonella to be absent | Absent | GB 4789.4 | |||||
Packing and Storage | Packed in fiber drum, LDPE bag inside. Net weight: 25kgs/drum. | ||||||
Keep away from moisture, strong heat and sunlight. | |||||||
Shelf Life | 2 years if sealed and stored in the recommended conditions. |