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...Pharmacognosy adulteration and evaluation of crude drugs unit rd objectives on completion this lesson you would be able to know methods commonly used substitutes in for determining adulterants involves incorporation impurities includes spoilage deterioration admixture genuine are intentionally substituted with spurious inferior defective or harmful substances is the debasement materials done when there scarcity cost drug high even though no either partially completely adulterant must having same morphological characters as that case powdered colour texture density taken into consideration...