Page 396 - Applied Pharmacognosy
P. 396

Types of Chemical markers

                  Substandard products

• Substandard products may result from: Adulteration
  may arise from:

• 1- substituting similar looking samples with those that
  are inferior or in deteriorated condition, or that do not
  contain the desired therapeutic compounds.

• 2- the addition of biologically active synthetic
  compounds.
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