Box-Behnken design based statistical modeling for ultrasound-assisted extraction of corn silk polysaccharide.
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Cites methods from "Box-Behnken design based statistica..."
...The range of independent variables and heir levels are presented in Table 1 and it was coded (−1, 0 and 1) according to the method described by Prakash Maran et al. 2013) for statistical calculation....
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Cites background or methods from "Box-Behnken design based statistica..."
...These graphs are drawn by maintaining two factors constant (in turn at its central level) and varying the other two factors in order to understand their main and interactive effects on the dependent variables (Prakash Maran et al., 2013)....
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...The coding of the variables was done by the following equation (Prakash Maran et al., 2013): xi ¼ Xi Xz DXi i ¼ 1; 2; 3 . . . k ð3Þ where xi, is the dimensionless value of an independent variable; Xi, the real value of an independent variable; Xz, the real value of an independent variable at the…...
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...In general, the exploration of fitted response surface models may produce poor or misleading results, unless the model exhibits a good fit, which makes checking of the model adequacy essential (Prakash Maran et al., 2013a)....
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...…variables (i and j range from 1 to k); b0 is the model intercept coefficient; bj, bjj and bij are interaction coefficients of linear, quadratic and the secondorder terms, respectively; k is the number of independent parameters (k= 4 in this study); and ei is the error (Prakash Maran et al., 2013)....
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...Adequate precision is greater than four is desirable (Prakash Maran et al., 2013b) and the ratio was found to be >95, which indicates an adequate signal and confirms that this model can be used to navigate the design space....
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References
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