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Figure 4 | Biotechnology for Biofuels

Figure 4

From: Radiation induces acid tolerance of Clostridium tyrobutyricum and enhances bioproduction of butyric acid through a metabolic switch

Figure 4

Comparison of acid and biomass dry weight production of wild-type and irradiated C. tyrobutyricum grown on glucose (containing 60 g·L-1) in clostridial growth medium at 37°C at pH 5.5 and 6.0. (A-C) Impact of 12C6+-ion irradiation (energy 68 AMeV and doses of 20, 30 and 40 Gy) on glucose concentration, butyric acid production and biomass dry weight. (D-F) Impact of 12C6+-ion irradiation (energy 114 AMeV and doses of 20, 30 and 40 Gy) on glucose concentration, butyric acid production and biomass dry weight. (G) SDS-PAGE of cellular proteins from C. tyrobutyricum. Lane WT: wild type; lane 1: cells irradiated at 68 AMeV and a dose of 30 Gy; lane 2: cells irradiated at 68 AMeV and a dose of 40 Gy; lane 3: cells irradiated at 114 AMeV and a dose of 30 Gy; lane 4: wild type and cells irradiated at 114 AMeV and a dose of 40 Gy; lane MW: protein molecular weight markers.

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