Course Content
Introduction, history, classification, trade, importance, prospects and constraints of medicinal and aromatic plants
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Introduction
Some terminologies
History of MAPs in Nepal
Classification of MAPs
Trade of medicinal plants from Nepal
Importance of Medicinal and Aromatic Plants
Prospects of MAPS
Constraints of MAPS cultivation in Nepal
Research status of MAPs in Nepal
0/1
Introduction
Extraction and storage methods for MAPS
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Introduction
General methods of extractions of medicinal plants/ formulation
Methods of extraction for medicinal plants
Methods of extraction of essential oils or fragrance
Distillation Technology for Essential Oils or fragrance
Scarification & Expression Methods for Essential Oils or fragnance
Solvent extraction
Enfleurage method (extraction with cold fat)
Maceration (extraction with hot fat)
Hydrolytic maceration
Extraction of alkaloids
Methods of extraction of Alkaloid
Storage of Medicinal Plants
Types of packaging material
Raw materials for the fragrances/Aromatic plants extracts
MAPs in CITES
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Introduction
Appendices of CITES
Limitations of CITES
Plant profile, description, origin, distribution, cultivation, management, harvesting and chemical evaluation of MAPS
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Aloe vera
Digitalis
Rauvolfia serpentina (Indian snakeroot)
Bojho
Neem
Sacred basil
Dhaturo
Madagaskar periwinkle
Citronella
Lemon grass
Palma rosa
Ginger grass
Khus
Lemon scented gum
Mint
Rosemary
Chamomile
Rose
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)
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