Even though pharmacological industries have
produced a number of new antibiotics in the last three
decades, resistance to these drugs by microorganisms has
increased. In general, bacteria have the genetic ability to
transmit and acquire resistance to drugs, which are
utilized as therapeutic agents (Gislene et al., 2000). For a
long period of time, plants have been a valuable source of
natural products for maintaining human health. The use of
plant extracts and phytochemicals, both with known
antimicrobial properties, can be of great significance in
therapeutic treatments (Seenivasan et al., 2006). Many
plants have been used because of their antimicrobial traits,
which are due to compounds synthesized in the secondary
metabolism of the plant. These products are known by
their active substances e.g. the phenolic compounds which
are part of the essential oils, as well as tannin (Tyagi and
Malik, 2010).
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