Succinic acid is produced by Actinobacillus succinogenes with the following medium composition (g/L): glucose, 50; yeast extract, 5; NaCl, l; Na2HPO4, 0.3; NaH2PO4, 1.4; K2HPO4, 1.5;
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Succinic acid is produced by Actinobacillus succinogenes with the following medium composition (g/L):
glucose, 50;
yeast extract, 5;
NaCl, l;
Na2HPO4, 0.3;
NaH2PO4, 1.4;
K2HPO4, 1.5;
MgC12.6H20, 0.2;
CaC12.2H20, 0.23.
The pH is controlled and maintained at 3.63. Estimate the range of upper limit, if 0.8% of deadband is applied. With a schematic diagram, explain how to maintain the pH throughout the fermentation process.
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- The Ksp values of silver chromate Ag2CrO4 and silver iodate Ag(IO3) are given below. Ag2CrO4 Ag(IO3) Ksp 1.12 x 10-12 3.17 x 10-8 Based on these Ksp values, which of the following is true? Choose one option only. Options: a. In the solution consisting of 1.00 x10-4 M Ag+ and 5.00 x10-5 M CrO42-, Ag2CrO4 precipitate will form. b. In the solution consisting of 1.0 x10-4 M Ag+ and 1.0 x10-4 M IO3-, Ag(IO3) precipitate will form. c. In pure water, the solubility of Ag2CrO4 is lower than the solubility of Ag(IO3). d. In the solution consisting of 0.200 M CrO42- and 0.200 M IO3-, Ag2(CrO4) will precipitate first if we add Ag+ ions gradually into the above mixture.. A certain medium has the following composition: Glucose 15 g Yeast extract 5 g Peptone 5 g KH2PO4 2 g Distilled water 1,000 ml Tell what chemical category this medium belongs to, and explain why this is true. How could you convert Staphylococcus medium (table 3.6A) into a nonsynthetic medium? a. Name four categories that blood agar fits. Alpha hemolysis Beta hemolysis Gamma Alpha prime Name four differential reactions that TSIA shows. Observe figure 3.15. Suggest what causes the difference in growth pattern between nonmotile and motile bacteria. Explain what a medium that is both selective and differential does, using figure 3.18. a. What kind of medium might you make to selectively grow a bacterium that lives in the ocean? MSA Mannitol salt agar One that lives in the human stomach? Why are intestinal bacteria able to grow…How many moles of Na2S2O3 would be required to react completely with 0.450 g of AgBr?