Resistance of human and food spoilage pathogens to antimicrobial agents and the side effects of chemical agents or preservative for human are caused for finding natural new antimicrobial agents, especially among the medicinal plants. This review introduces the methods that are used for antimicrobial evaluation and synergistic activities and the antimicrobial potential of some India medicinal plants. In recent years, the appearance of antibiotic potential of some India medicinal plants. In recent years, the appearance of antibiotic resistant bacteria and fungi to antimicrobial agents has been an important issue for researchers. This resistance to antibiotics increases the morbidity rate in communities (Mazel and Davies.1999). Because of adverse effects of chemical anitibioties and the resistant microorganisms, the scientists have interested in new sources of antimicrobial agents especially among medicinal plants. For a long time, some of plants have been medicinal or food values for humans and is used for treatment of human ailments (Cowan, 1999). Essential oils and plant extracts based on ethno medicinal uses are potential sources of new antimicrobial compounds against microbial strains. The Combined use of plant extracts or essential oils and antibiotics area useful in decreasing drug resistant problems (Mahboubi and GhazianBidgoli, 2010). There are some medicinal plant species that are used by India people. Some of these plants are screened for these antimicrobial activities.

Resistance of human and food spoilage pathogens to antimicrobial agents