Fig. 2From: Metabolic engineering of Bacillus subtilis toward the efficient and stable production of C30-carotenoidsQuantitative analysis of C30 carotenoids produced by engineered B. subtilis strains. Samples were analyzed by HPLC after C30 carotenoid extraction with acetone. Quantification of each C30 carotenoid was performed comparing peak areas with the standard reference curve, and then normalized to the dry cell mass of each culture. The amount of DNP is indicated in orange and the amount of DLP in yellow. The experiments were performed in triplicateBack to article page