The study of production of PHA model shift in fermentation tanks with volume 3 liter stirring rate 100 cycles per minute, the rate of pH 7 and air 0.5 volume per volume of food fermentation tanks per minute. Found that the cumulative PHA Novosphingobium sp. can THA_AIK7 up to 22.7 percent of the dry weight of cells. In the 96 hours of fermentation by the concentration of the cells and the PHA equals 1.567 and 0.356 grams per liter, respectively, representing the result of PHA per the precursor is used (Yp/s), and the effect of PHA per biomass (Yp/x) is equal to the maximum, and 0.514 g 0.163 per gram, respectively.
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