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Dechlorination of the hexachlorinated biphenyl congeners 234-234-CB or 245-245-CB by strain CBDB1. Parallel cultures were inoculated with about 1.65 × 105 cells from three parallel cultures grown with the TCBz mixture. The inocula for both sets of cultures were the same. Shown are results of three parallel cultures ± the standard deviation. While less than 1% of 234-234-CB (○) was dechlorinated, 245-245-CB (▪) was extensively dechlorinated via 245-25-CB (▴) to 25-25-CB (⧫).
