Preparation of Medicinal Plants for Commercial Market
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Questions and Answers

What is the purpose of the sieve in the classification process?

  • To measure the size of the particles
  • To remove all the particles from the material
  • To blend the coarse and fine particles together
  • To separate the coarse particles from the fine particles (correct)

What is the purpose of blowing the material to be classified with compressed air?

  • To generate static electricity and attract the particles
  • To allow the particles to sediment according to their weight (correct)
  • To remove any impurities from the material
  • To create a uniform distribution of the particles

Which of the following is NOT one of the steps involved in the preparation and quality of medicinal plants for the commercial market?

  • Drying
  • Extraction
  • Cultivation
  • Packaging (correct)

Which of the following factors must be considered during the storage of plant crude drugs?

<p>All of the above (D)</p> Signup and view all the answers

What is the purpose of the grinding step in the preparation of medicinal plants?

<p>To increase the surface area of the plant material (A)</p> Signup and view all the answers

Which of the following is NOT a factor that can impact the supply and availability of phytopharmaceuticals?

<p>Packaging (C)</p> Signup and view all the answers

What is the main issue with storing drugs in powdered form according to the text?

<p>Powdered drugs become hygroscopic and form a rubbery mass on prolonged exposure to air. (A)</p> Signup and view all the answers

What is the optimal temperature range for storing medicinal herbs according to the text?

<p>2-8°C (A)</p> Signup and view all the answers

What is the main issue with storing medicinal herbs at high temperatures according to the text?

<p>It causes the essential oils in the herbs to evaporate and the lipid-containing herbs to decompose. (B)</p> Signup and view all the answers

What is the recommended moisture content for storing medicinal herbs?

<p>10-12% (A)</p> Signup and view all the answers

What is the main issue with storing medicinal herbs with excessive moisture content according to the text?

<p>All of the above. (D)</p> Signup and view all the answers

What is the purpose of using desiccants like quicklime, silica gel or roasted rice in the storage of medicinal herbs according to the text?

<p>To absorb excess moisture and maintain the optimal moisture content. (C)</p> Signup and view all the answers

What is one reason for intentional adulteration mentioned in the text?

<p>To substitute with morphologically similar but inferior substances (D)</p> Signup and view all the answers

Why might waste products be used as adulterants according to the text?

<p>To add color and density to the adulterated substance (C)</p> Signup and view all the answers

How can adulteration be done with superficially similar inferior natural substances?

<p>By using unrelated substances with similar therapeutic activity (A)</p> Signup and view all the answers

Which example of intentional adulteration involves substituting with inferior commercial varieties?

<p>Replacing medicinal ginger with Japanese ginger (D)</p> Signup and view all the answers

Why is clove used as an example of intentional adulteration in the text?

<p>Because clove retains its shape after extraction of volatile oil (D)</p> Signup and view all the answers

What is a common practice highlighted in the text for adulterating drugs containing volatile oils?

<p>Utilizing spent cloves that have had volatile oil extracted (C)</p> Signup and view all the answers

What is the correct order of steps involved in the preparation of medicinal plants for the commercial market?

<p>Cultivation, Collection &amp; Harvesting, Drying, Grinding, Storage, Extraction, Adulteration (B)</p> Signup and view all the answers

Why is it important to grind the plant material after drying?

<p>To produce powder of suitable and uniform particle size (D)</p> Signup and view all the answers

Which machine is commonly used for grinding plant materials to produce low-dust powders of leaves and roots?

<p>Mortar and pestle (B)</p> Signup and view all the answers

After grinding plant materials, what must be done to ensure proper particle size?

<p>Sifting (C)</p> Signup and view all the answers

What process involves passing the material through a sieve of suitable mesh size?

<p>Sieving (C)</p> Signup and view all the answers

Which method is used for sifting after grinding that involves blast sifting?

<p>Sieving (D)</p> Signup and view all the answers

What is the main purpose of extracting medicinal plants for the commercial market?

<p>To sell the plant extract as a drug (B)</p> Signup and view all the answers

What is the process used to obtain a plant extract?

<p>Solid-liquid extraction using a solvent (C)</p> Signup and view all the answers

What is the main difference between dry extracts and fluid extracts?

<p>Dry extracts have a solid consistency, while fluid extracts are liquid (B)</p> Signup and view all the answers

What is the main purpose of tinctures?

<p>To prepare a liquid extract using a mixture of water and ethanol as the solvent (C)</p> Signup and view all the answers

Which of the following is not a step involved in the preparation and quality control of medicinal plants for the commercial market?

<p>Packaging (B)</p> Signup and view all the answers

What is the meaning of adulteration in the context of medicinal plants?

<p>Substituting the original plant material with similar-looking substances (D)</p> Signup and view all the answers

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