Page 401 - Applied Pharmacognosy

Types of Chemical markers

• * Markers ''are chemically defined
constituents of an herbal drug, they are of
interest for quality control purposes.

• *Extract refers to a concentrated preparation
of active constituents of a medicinal herb.

• * Standardization refers to '' adjusting the
herbal drug preparation to a define content
of a constituent or a group of substances with
known therapeutic activity.