Researchers from the Valencia University and IATA-CSIC (Spain) and Amol University (Iran) used PMA-qPCR in order to quantify life cells within a bacterial population treated with Z. multiflora EO. PMA-qPCR approach is proved efficient to detect live bacteria in vegetables following inactivation with Z. multiflora EO.

http://www.sciencedirect.com/science/article/pii/S0956713513003198