Hot pressurized liquid extraction has been used to obtain polyphenols; however, its operating conditions can generate hydroxymethylfurfural, a potential human carcinogen. The addition of ethanol can reduce process temperatures and retain extraction efficiencies, but the ethanol may reduce the recovery of polyphenols in the subsequent purification stage, affecting the antioxidant properties of t...

The paper present the possibility of automatic control of the biological wastewater treatment station with applications in Romanian Chemical Companies. In this paper are developed a mathematical model for biological aeration basins and two automatic control systems (conventional control structure using threepositional controllers or PLC and advanced control structure using state estimators) for...

Candida boidinii, Growth on Ethanol, Presence M onofluoracetate, Red Dipyrromethene Pigment, Structure Elucidation The yeast Candida boidinii ATCC 32195 produces a cell-bound red pigment during growth on 1% ethanol in the presence o f 0.05% monofluoracetate. Its isolation and purification are described. The structure was elucidated by chemical degradation and physical methods, mainly mass and n...

introduction: human adipose-derived mesenchymal stem cells (hadscs) are easily accessible in the body, and under appropriate conditions, they can be directed toward various phenotypes. therefore, hadscs have been considered as a potential cell source for tissue engineering applications. hadscs are able to differentiate into endothelial cells which covers the interior surface of vessels, in vivo...