The quality of the herbs/plants is vey important to herbal extracts, how to extract is also very important, especially the selecting of the right solvents used for extraction.
The right solvent used help you to get your target ingredients in the herbs, the strength of the solvents affect the extraction quality also, and affect the production cost. Certainly the temperature, the extraction lasting time, the filtering, the concentraction, the drying, we shall pay great attention to them.
The main solvent is ethanol, or grain ethanol, edible alcohol, the industrial grade of ethanol is not good for herbal extraction, KINGHERBS use only the edible grain ethanol for extraction, to adjust the ethanol strength by purified water, so we assure the quality of the solvent for better herbal extracts.The following items are tested in the ethanol,aldehyde, formaldehyde, normal propyl alcohol, isobutanol, isoamylol, acids, esters,nonvolatile matters and heavy metals.
Attached is one of the test report of our suppliers.
