The Science Daily reporting that Portuguese scientists discovered that oil from coriander, aka cilantro, makes a good anti-biotic.

“The results indicate that coriander oil damages the membrane surrounding the bacterial cell.  This disrupts the barrier between the cell and its environment and inhibits essential processes including respiration, which ultimately leads to death of the bacterial cell.”-Fernanda Domingues.

Researchers confirmed that coriander/cilantro oil can affect 12 types of bacterial strains, and some were killed by solutions containing 1.6% or less coriander oil.  The oil comes from the seeds of the plant.  Not only could it be used as an anti-biotic, but it might be used to preserve food.