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TLC profiles of meat extracts from store 2 developed with A. tumefaciens NT1(pZLR4). Lane 1, standards of OHHL, HHL (N-hexanoyl homoserine lactone), and OHL (N-octanoyl homoserine lactone); lane 2, H. alvei 718 grown in LB5; lane 3, reextracted meat extracts after 4 weeks of storage; lane 4, meat extracts after 3 weeks of storage; lane 5, meat extracts after 2 weeks of storage; lane 6, meat extracts after 1 weeks of storage; lane 7, meat extracts at the day of purchase.
