Learn Medicinal and Aromatic Plants with Rahul
About Lesson

Scarification & Expression Methods for Essential Oils or fragnance

  • Based on puncturing & squeezing of the plant material to liberate the oil, which is collected.
  • Used for Preparation of heat sensitive oils, present in large amounts in outer peels of fruits
  • g. Citrus fruits (Rutaceae) as orange, lemon & bergamot.

 

 

 

Steps of scarification and expression

  • Squeezing of the peel under a stream of water —> emulsion (volatile oil + water + pectin + cellulose + pigments + traces of waxes).
  • Centrifugation (to remove water + pectin + cellulose)
  • Strong cooling (to remove waxes)