Journal of Engineering / 2014 / Article / Tab 1

Research Article

Application of Full Factorial Design in Optimization of Solvent-Free Microwave Extraction of Ginger Essential Oil

Table 1

Coded and natural variables in 23 factorial design.

Levels [min.] [watt]

Basic level (0)20464
High level (+1)30640Sliced
Low level (−1)10288Crushed
Interval10176

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