Fermentation.The preparation of fermented with yeast concentration of sugar can be used, for 17-18% of food to be more is ammonium sulfate. And adding phosphoric acid. Adding sulfuric acid to adjust the pH to fit the growth of yeast.Fermentation technology of a 2 ways.1 batch fermentation (Batch) means to mix inoculated into the fermentation and formed in the tank. Paste the same leaves the circuit completed fermentation in 72 hours.- batch fermentation technology has many advantages.The installation of equipment cheaper. Don"t want to kill in reactor completely. Don"t use the expert control machine.- the disadvantages of fermentation, is the frequency in the sterilizing tank have adverse effects on the measurements of the tool. The cost in preparation of high speed in the mutation of antimicrobial use paste.2 continuous fermentation (Continuous) means is mixed culture fermentation tank and in the first and let the flow of fermentation to 2 leaves 3 4 or 5 until the desired concentration ethanol- continuous fermentation technology has many advantages.Use employee less control products. The chance of infection during the fermentation of low and prevent damage of the dark temple during the sterilization device inside the tank.Technology of continuous fermentation disadvantages.The raw materials used in fermentation to be the same throughout the fermentation. Problems in the treatment of fermentation rate high. Equipment to separate solids during fermentation is expensive.
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