The response surface graph points to a 10 g/L glucose concentration as the optimal value, while for temperature, the optimal values show an increasing trend, ranging from 24 °C to 32 °C ( Figure 3 A).
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Optimisation of Potato Dextrose Agar Culture Medium for Actinobacteria Growth.
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The response surface graph shows that a 10 g/L glucose concentration is the optimal value, while for pH, the optimal values show a decreasing trend, ranging from 7.2 to 5.7 ( Figure 3 B).
When the dependent variable was incubation time, the response surface was generated from the glucose concentration and pH variables, and a negative trend with decreasing values for both variables was observed.
When the dependent variable was mycelium growth, the response surface was generated from the glucose concentration and incubation temperature variables, and what was observed was a positive trend with increasing values for both variables.