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Chapter 6 Cultivation Collection

Chapter 6 discusses the cultivation, collection, and processing of herbal drugs, emphasizing the importance of soil type, climate, and proper harvesting techniques. It outlines the steps involved in collecting, drying, garbling, packing, and storing crude drugs to maintain their quality and medicinal properties. Key practices include manual harvesting for delicate parts, shade drying for leaves, and controlled storage conditions to ensure shelf life.

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Brehanu Gelete
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44 views1 page

Chapter 6 Cultivation Collection

Chapter 6 discusses the cultivation, collection, and processing of herbal drugs, emphasizing the importance of soil type, climate, and proper harvesting techniques. It outlines the steps involved in collecting, drying, garbling, packing, and storing crude drugs to maintain their quality and medicinal properties. Key practices include manual harvesting for delicate parts, shade drying for leaves, and controlled storage conditions to ensure shelf life.

Uploaded by

Brehanu Gelete
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Chapter 6: Cultivation, Collection, and Processing of Herbal Drugs

1. Soils, Seeds, and Propagation Material


The type of soil plays a crucial role in the quality and yield of medicinal plants. Loamy soil is ideal for
most plants, while sandy soil suits root crops like Liquorice. Propagation methods include seeds,
vegetative propagation (cuttings, rhizomes), and micropropagation.

2. Factors Influencing Cultivation of Medicinal Plants


Factors such as climate, altitude, water availability, soil fertility, crop rotation, pest control, and
harvesting techniques affect plant growth and medicinal properties.

3. Collection of Crude Drugs


Correct timing and identification of plant parts are crucial. Roots are collected in autumn, leaves in
summer, and flowers at full bloom. Morning collection preserves volatile oils.

4. Harvesting of Crude Drugs


Harvesting should avoid damage to medicinal components. Manual harvesting is used for delicate
parts like flowers, while mechanical methods are suitable for roots and bark.

5. Drying of Crude Drugs


Drying prevents microbial contamination. Shade drying is best for delicate leaves, sun drying for
seeds and roots, and artificial drying for preserving volatile compounds.

6. Garbling (Cleaning and Sorting)


Garbling involves removing unwanted plant parts, debris, and adulterants. Methods include hand
sorting, sieving, and mechanical cleaning.

7. Packing of Crude Drugs


Packing protects drugs from moisture and contamination. Materials include paper bags,
polyethylene bags, glass containers, and vacuum-sealed packs.

8. Storage of Crude Drugs


Storage ensures shelf life. Conditions include controlled temperature (15-25°C), humidity below
60%, dark storage for photosensitive drugs, and pest control using fumigation.

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