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Operating diagram of extraction and fractionation plant from Reference [87], consisting of (1) filtered tannin broths; (2) permeate from nanofiltration Step 1; (3) concentrate from nanofiltration Step 1; (4) concentrate from nanofiltration Step 2; (5) permeate from nanofiltration Step 2; (6) concentrate from nanofiltration Step 3; (7) osmosis permeate; (8) osmosis concentrate; (9) settled fraction from clarification step; (10) spray-dried obtained from fraction 6.
