NURSING EXAM QUESTIONS
PHARMACOGNOSY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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for unorganised state of crude material ____ is preffered
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percolation
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compression
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expression
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maceration
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Explanation:
Detailed explanation-1: -Maceration. In this process, the whole or coarsely powdered crude drug is placed in a stoppered container with the solvent and allowed to stand at room temperature for a period of at least 3 days with frequent agitation until the soluble matter has dissolved.
Detailed explanation-2: -The maceration results in a liquid with waste and has to be purified further while the percolation results in a liquid that only contains desired substances dissolved in it; hence, no further purification is required.
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