Modified forms of naturally occurring bacteriocins, such as the R-type pyocins of Pseudomonas aeruginosa, are disclosed as are methods for producing them in GRAS organisms. The bacteriocins are modified at the ends of their tail fibers in a region responsible for binding specificity and affinity to their...http://www.google.com.au/patents/US7700729?utm_source=gb-gplus-sharePatent US7700729 - Modified bacteriocins and methods for their use