EXTRACTION

Give definition of extraction process

State three(3) type of extraction process

Fill in the blank

Below is the general method of extraction.

•Decoctions

•Infusions

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•Maceration

Identify extraction process in the picture shown

Define maceration process

Identify the extraction process in the picture

Which of the below statements is true about percolation extraction process.

• Macerate less than 4 hours in percolator

• Rinse with solvent until 1/2 of the required volumes obtained (percolate) ~ 4-5 times

• Products must be filtered/ decanted

• Additional solvent was added to ensure all mass is immersed

Which of the below statements is true about decoction extraction process

• Sample boiled for a specified time

• Boiling to reduce volume until 1/2

• Sample must immersed in water (infusion)

• Final product is tincture form

Give one differences between infusion and decoction

Answer explanation

Infusion can be extract by hot H₂O and solvent for short period of time but Decoction only use hot H₂O and must boil until ¼ initial volume

Normally herbal mixtures is use .............extraction process.

Answer explanation

To get dilute solutions of the readily available constituents

Herbal infusion normally to prepare herbal mixture