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HPLC analysis of 1-14C-labeled fatty acids extracted from mc2155 and mc22700 after labeling with [1-14C]acetate for 30 min. The retention times (t) for the p-bromophenacyl fatty acid esters under the elution conditions described previously (30) are as follows: C14:0, 10.5 min; C16:0, 17.8 min; C18:1, 18.9 min; C18:0, 23.8 min; C20:0, 25.3 min; C22:1, 26.5 min (peak a); C22:0, 27.3 min; C24:0, 29.9 min; C26:1,31.6 min (peak b); and C26:0, 33.6 min.
