PHB production was conducted in 500 mL conical flasks containing
150 mL of MSM supplemented with specified amount of
sugar and nitrogen source at 30 C on a rotary shaker at 150 rpm.
Samples were taken every 12 h in duplicate. The initial OD600 of
B. megaterium R11 for all the cultivation was 0.05.
To test the effect of different nitrogen sources on PHB production,
the MSM medium containing 10 g/L glucose and 5 g/L xylose
was supplemented with one of the following nitrogen sources,
(NH4)2SO4, NH4Cl, peptone (Laboratories CONDA S.A), yeast extract
(Laboratories CONDA S.A) and Bacto™ tryptone (BD), each
at 6 g/L.
PHB production was conducted in 500 mL conical flasks containing150 mL of MSM supplemented with specified amount ofsugar and nitrogen source at 30 C on a rotary shaker at 150 rpm.Samples were taken every 12 h in duplicate. The initial OD600 ofB. megaterium R11 for all the cultivation was 0.05.To test the effect of different nitrogen sources on PHB production,the MSM medium containing 10 g/L glucose and 5 g/L xylosewas supplemented with one of the following nitrogen sources,(NH4)2SO4, NH4Cl, peptone (Laboratories CONDA S.A), yeast extract(Laboratories CONDA S.A) and Bacto™ tryptone (BD), eachat 6 g/L.
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