Fig. 4From: Enhanced 1,3-propanediol production with high yield from glycerol through a novel Klebsiella–Shewanella co-cultureConstruction of the microbial co-cultivation system. A Substance exchange models in the strain YT7 and MR-1 co-cultivation system. B Production of 1,3-PDO and by-products in the co-cultivation system of strain YT7 and MR-1. The inoculation time of strain MR-1 was 6 h after inoculation of strain YT7. The inoculation ratio of strain YT7 and strain MR-1 was 1:1. C Effects of different inoculation time on 1,3-PDO production for strain YT7. D Effects of different inoculation ratio on 1,3-PDO production for strain YT7Back to article page