Does anybody know how to extract tannic acid from agricultural rich wastes which contain tannin?

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Chanchai Sardsaengjun

Decant the suspension, then bring to freeze dried or spray dried.

Vinod Viswanath

Thank you chanchi. any reference for that?

I have ever read from many text books. But the extract is in crude tannin, not purified tannin.

ok chanchai. but i thin there is no specific literature for this said procedure?

Yes,,,,,,,,,,,