The purpose of this study was to investigate the hydrolyzation of aspirin during the process of dissolution testing for aspirin delayed-release tablets. Hydrolysis product of salicylic acid can result in adverse effects and affect the determination of dissolution rate assaying. In this study, the technique of differential spectra was employed, which made it possible to monitor the dissolution t...

a pancreatopeptidase (elastase) digest index was devised for a rapid and accurate estimation of protein quality. this index was calculated on the basis of all the amino acids released by an in-vitro elastase digestion, acid hydrolyses of same sample and the residue of enzyme hydrolyzed. the amino acids were determined by thin-layer chromatography. samples used were cooked white kidneybeans, coo...

As an important intermediate product, short-chain fatty acids (SCFAs) can be generated after hydrolysis and acidification from waste activated sludge, and then can be transformed to methane during anaerobic digestion process. In order to obtain more SCFA and methane, most studies in literatures were centered on enhancing the hydrolysis of sludge anaerobic digestion which was proved as un-effici...

In order to evaluate the effects of different pretreatments on microbial transformation of saponins in Dioscorea zingiberensis (DZW), various methods have been systematically studied on a large scale. Five pretreatments, including physical separation, catalytic solvent extraction, ultrasonic fermentation, complex enzymatic hydrolyzation and enzymatic saccharification, were performed on DZW. Com...

Chlorodifluoromethane (HCFC-22) is one of the air pollutants that destroy ozone layer and warm earth. In order to degrade HCFC-22, catalytic hydrolysis method currently most effective environmental technology. Herein, we prepare solid acid MoO3/ZrO2 base MgO/ZrO2 catalysts for degradation with a particular focus on revealing effects catalyst preparation methods, calcination temperatures, temper...

Lignocellulosic biomass is the most abundant renewable carbon resource on earth, for which many efforts have been made to convert it using various chemocatalytic processes. Heterogeneously conversion conducted based reusable solid catalysts process with greatest potential studied presently. This review provides insights into representative achievements in research area of heterogeneous chemical...

The sustainable byproduct catalyzed domino strategy has been performed for the facile synthesis of α-formyloxy and acetoxy ketones via iodination/nucleophilic substitution/hydrolyzation/oxidation sequences from simple and readily available aromatic ketones/unsaturated methyl ketones.