Commercial Floriculture

Evaporation

• After the complete extraction of the perfume from the flowers, the solvent is filtered and concentrated by evaporation at a constant temperature of 75⁰C.
• At this temperature, the solvent evaporates leaving the perfume and other plant waxes.
• The vapour of the solvent is condensed into liquid again for recycling.
• The concentrated liquid containing perfume, wax, pigments and the solvent is distilled in a vacuum distillation unit where the complete removal of the solvent takes place, leaving the floral concrete in the form of molten wax.
• Based on the above principle, Tamil Nadu Agricultural University, Coimbatore has designed a pilot plant for extraction of floral concrete.
• It has essentially four steps viz.,

  (1) Extractor
  (2) Evaporator
  (3) Condenser And
  (4) Vacuum Distillation Unit.

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