Food spoilage can occur from raw food materials to the processing
and distribution. Spoilage sources might be chemical, physical
and microbiological. Preservation techniques for microbiological
spoilage have been dramatically improved in recent years to
minimize any growth of micro-organisms including pathogenic micro-
organisms (Gould, 1996). Research concerning plant-origin
food-preservative EOs has increased since the 1990s, with more utilization
of spices and their EOs as natural bio-preservatives, to increase
shelf life and overall quality of food products and reduce or
eliminate pathogenic micro-organisms (Burt, 2004; Moriera et al.,
2007; Simitzis et al., 2008). Application of Thymus eigii showed
stronger antimicrobial activity compared to vancomycin (30 mcg)
and erythromycin (15 mcg) (Toroglu, 2007)