Wine and fruit juice clarification

Colloidal silica is used as a flocculation agent for wine and fruit juice, normally combined with gelatin and/or bentonite.

The large active surface of the silica particles flocculates with undesirable proteins and phenolics removing them from the liquid by forming easily separated sediment. This has the effect of improving the taste, appearance  and shelf life of the beverage.

Flocculation formation:

  1. Negative charged colloidal silica particles are added

  2. Particles surround the trash substances

  3. The trash substances are now negative charged

  4. Positive charged gelatine is added, floccs formates

  5. Trash substances has been flocculated and falls by gravity to the bottom as a sediment.

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