The extraction optimization and composition analysis of polyphenols in the fresh pulp of Wuweizi (Schisandra chinensis) have been investigated in this study. The extraction process of polyphenols from Wuweizi pulp was optimized using Random-Centroid Optimization (RCO) methodology. Six factors including liquid and solid ratio, ethanol concentration, pH, temperature, heating time and extraction t...

Rhizoma Atractylodes macrocephala polysaccharides (RAMP) have been reported to have a variety of important biological activities. In this study, an ultrasonic-assisted enzymatic extraction (UAEE) was employed to obtain the highest extraction yield and strongest antioxidant activity of RAMP and optimized by a multi-response optimization process. A three-level four-factor Box-Behnken design (BBD)...

Underground coal mining was finished in the north-eastern region of Hungary after its operation more than two centuries, as a result economic, technical, environmental and political reasons. A fairly significant part reserve is still available to extract. With different perspective mining, considering ways utilization (such chemistry, etc.) extraction material can be cost effective. In past few...

Cherry cake berries, which is a waste of liquor production, contain biologically active substances, including lipids, are not extracted by ethanol in the main production. Supercritical carbon dioxide good extractant for such compounds. By method full factor experiment using rotatable uniform-plan second order, process optimization extraction cherry oil from processed berries supercritical fluid...

In this work we present three feature extraction models used in vibratory data from rotating machinery for bearing fault diagnosis. Vibrations signals are acquired by accelerometers which are then submitted to different feature extraction modules. Our tests suggest that pooling heterogeneous feature sets achieve better results than using a single extraction model. Besides, different classifiers...