Screw pressing parameters for oil expelling was optimized with dehulled deskinned groundnut and wheat bran (fibre material) at variable sample moisture and press head temperature in two different sets of experiments. Box-Behnken design of response surface methodology was adopted for the study with dehulled deskinned groundnut (80-95g), wheat bran (8-16g) and sample moisture (8-14%, .) while press head temperature ranged between 50-90 oC. |