Results 301 to 310 of about 799,475 (353)
Some of the next articles are maybe not open access.
Acidic hydrolysis of pyrimidine deoxyribonucleotides
Biochimica et Biophysica Acta (BBA) - Nucleic Acids and Protein Synthesis, 1973Abstract The rates of acidic N-glycosyl cleavage of the 3′- and 5′-phosphates of deoxycytidine and thymidine have been studied. The pH-rate profiles and thermodynamic parameters for the hydrolyses resemble those of the parent nucleosides. It is likely that the A-1 mechanism observed with the nucleosides also operates at the nucleotide level.
R, Shapiro, M, Danzig
openaire +2 more sources
Feulgen Hydrolysis with Phosphoric Acid
Stain Technology, 1953Sections from rat tissues fixed in a 10% solution of formalin in 90% alcohol were treated with phosphoric acid in concentrations varying from 30 to 85% at room temperature (28°), and subsequently stained with the Schiff reagent. Intense staining of the nuclear material was obtained in 5 to 15 minutes when 40 to 75% phosphoric acid was used. The intense
openaire +2 more sources
Acid hydrolysis of acidic mucopolysaccharides
Carbohydrate Research, 1966Abstract The hydrolysis of mucopolysaccharides with dilute hydrochloric acid was studied. Glycosidic bond cleavage of the β- D - and α- L -linked mucopolysaccharides occurred with unexpected facility and produced partially sulfated and N -acetylated disaccharides as well as higher oligosaccharides and smaller proportions of monosaccharides.
openaire +1 more source
Enzymatic hydrolysis of alginic acid
Biochimica et Biophysica Acta, 1954Abstract An alginic acid hydrolizing bacterium has been isolated which excretes an enzyme capable of degrading alginic acid into mannuronic acid. A series of intermediary oligomannuronides has been demonstrated by paper chromatography to be present during enzymatic ...
openaire +2 more sources
Acid-Catalyzed Hydrolysis of Glycosides
1967Publisher Summary This chapter discusses the reaction that predominates in the dilute solutions of both glycoside and acid at temperatures of 100° or below––that is, hydrolysis. The method used for kinetic measurements is indicated in the chapter.
openaire +2 more sources
Carbohydrate Polymers, 2001
Abstract The hydrolysis of the O-glycosidic linkages (depolymerization) and the N-acetyl linkage (de-N-acetylation) of partially N-acetylated chitosans were studied in dilute and concentrated HCl. The rate of hydrolysis of the glycosidic linkages was found to be equal to the rate of de-N-acetylation in dilute acid, while the glycosidic linkages was ...
openaire +1 more source
Abstract The hydrolysis of the O-glycosidic linkages (depolymerization) and the N-acetyl linkage (de-N-acetylation) of partially N-acetylated chitosans were studied in dilute and concentrated HCl. The rate of hydrolysis of the glycosidic linkages was found to be equal to the rate of de-N-acetylation in dilute acid, while the glycosidic linkages was ...
openaire +1 more source
1987
Cellulosic materials consist of three major components, namely, cellulose, hemicellulose, and lignin. The two modes of converting the carbohydrate components into their constituent sugars are enzymatic hydrolysis and acid hydrolysis. The former has been reviewed in the preceding chapter [38,39, 81 ]. The present chapter covers the latter with the focus
Liang-tseng Fan +2 more
openaire +1 more source
Cellulosic materials consist of three major components, namely, cellulose, hemicellulose, and lignin. The two modes of converting the carbohydrate components into their constituent sugars are enzymatic hydrolysis and acid hydrolysis. The former has been reviewed in the preceding chapter [38,39, 81 ]. The present chapter covers the latter with the focus
Liang-tseng Fan +2 more
openaire +1 more source
Catalysis Today, 2016
Abstract The public interest in usage of lignocellulosic biomass as a renewable resource has grown strongly during the last decade. Hemicelluloses are the second most abundant constituents of wood biomass, but have yet received less attention, compared to cellulose.
G. Hilpmann +7 more
openaire +1 more source
Abstract The public interest in usage of lignocellulosic biomass as a renewable resource has grown strongly during the last decade. Hemicelluloses are the second most abundant constituents of wood biomass, but have yet received less attention, compared to cellulose.
G. Hilpmann +7 more
openaire +1 more source
Hydrolysis of Nitrosylsulfuric Acid
Russian Journal of Applied Chemistry, 2001The statics and kinetics of hydrolysis of nitrosylsulfuric acid were studied at the initial sulfuric acid concentrations in the range 60-76 wt % and temperatures in the range 20-100°C or 30-130°C. The results were compared with the published data.
P. P. Kim +2 more
openaire +1 more source
[Acid hydrolysis of mandioca].
Revista de farmacia e bioquimica da Universidade de Sao Paulo, 1976The influence of time of hydrolysis, pression of the process, ratio of mass of flour and volume and concentration of the acid solution was studied in the hydrolytic processes for Cassava flour. The aim was to obtain fermentable sugars, and the results were submitted to variance analysis.
A J, Colombo +3 more
openaire +1 more source