6Economakis C, Skahsa H, Demetzos C, et al. Effect of phos- phorus concentration of the volatile constituents of leaves and bracts of origanum dictamnus [ J]. J Agric Food Chem, 2002,50 (22) : 6276 - 6280.
7urt S A, Reinders R D. Antibacterial activity of selected plant essential oils against escherichia coli O157:H7 [ J]. Lett Appl Microbiol,2003,36(3 ) : 162 - 167.
