Research Article
Significance of Heavy-Ion Beam Irradiation-Induced Avermectin B1a Production by Engineered Streptomyces avermitilis
Figure 4
Time course of the physiological working capacity of 147-G58 mutants cultivated in stirred-tank bioreactors with different agitation speeds. (a) Time course of cell dry weight with agitation speeds of 150, 250, and 350 rpm. (b) Time course of dextrin consumption with agitation speeds 150, 250, and 350 rpm. (c) Time course of the AVM B1a specific productivity with agitation speeds 150, 250, and 350 rpm. (d) Time course of the dash dotted line of DO-levels with agitation speeds 150, 250, and 350 rpm. (e) Time course of determination of oxygen uptake rate (OUR) with agitation speeds 150, 250, and 350 rpm. (f) Time course of determination of the specific oxygen uptake rate (SOUR) with agitation speeds 150, 250, and 350 rpm. Black circle symbol for 150 rpm speeds, grey circle symbol for 250 rpm speeds, and off-white circle symbol for 350 rpm speeds, respectively.
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