Sterile pork loin tissue was inoculated with Luctobacillus plantmum and Lactobacilhs fermentum, placed in sterile sample bottles, purged with Cot, and stored for up to 24 days at 3°C. L. plantarum grew more rapidly than L. fennenhun under these conditions. Among the 15 compounds identified in the headspace of sterile and inoculated pork loin tissue were acetone, sulfur dioxide, dichloroethane, trichloromethane, benzene and toluene. Profiles of volatile compounds were similar for inoculated and sterile pork loin tissue.