The aim of this study was the development and validation of a new method for carbohydrates analyses obtained from woody biomass, as a step of bioethanol production. In this study, we have quantified carbohydrates in wood by gas chromatography (GC) after derivatization. Quantification of carbohydrates was made by liquid-liquid extraction, oximation and silylation and, finally, analysis by gas ch...

Cellulose phenylcarbamate derivatives having methacrylate groups were synthesized with regioselective and non-regioselective procedures. These derivatives were chemically immobilized onto a vinylized silica gel, respectively, via a radical co-polymerization reaction. The immobilization was efficiently attained using a small amount of AIBN. The chiral recognition abilities of the prepared chiral...

Introduction: Astaxanthin, a highly active oxidant, possesses potential effect on human health. However, with the oily characteristic, ability to disperse in an aqueous environment has limited its application. Therefore, aim of this study is fabrication stable astaxanthin emulsion water. Methods: In study, was fabricated using polysorbate (tween 60/80) or lecithin. The dispersing methods magnet...

Cellulose derivatives are promising bio-based polymeric materials with possible applications ranging from thickening agents and stabilizers to optical films. The precise determination of their degree substitution (DS) is crucial, as the DS substantially influences material properties such cellulose derivatives. Herein, applicability attenuated total reflection-Fourier transform infrared for est...