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a. Good breeding and fermentation process, the temperature of the process must be maintained more or less 30-350C (optimum 340C) due to the metabolic processes taking place is eksoterm. pH is controlled between 7-8 by means of menambahnkan of NH3. Decrease in pH caused by the production of glutamic acid by bacteria. b. fermentation of glutamic acid fermentation an aerobic, therefore the air stream (as supply of oxygen) and aeration should be enough to prevent lactic acid is formed (when lack of oxygen)c. levels of sugar during fermentation process will be increasingly reduced as modified by bacteria into glutamic acid, then adding drops of feeding fermentation takes place at important.d. effects of biotin levels used, 10-20 mg/l. biotin plays an important role in the accumulation of glutamic acid in large quantitiese. the effects of Penicillin, for selection of microbes and accumulate glutamate during a phase of growth, as well as facilitate the glutamate to harvested because glutamate terekstraksi out of the cell.
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