Results 251 to 260 of about 786,299 (308)

Acid Hydrolysis of Sulphapyridines

Nature, 1946
SULPHAPYRIDINE (M and B 693) is readily hydrolysed by dilute mineral acids1. Many isomerides of sulphapyridine have been made and it has been found that the three isomeric derivatives from 3-aminopyridine (3-(o-, m- and p-aminobenzenesulphonamido)pyri-dine) are stable to hot mineral acids.
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The acid hydrolysis of glycosides

Carbohydrate Research, 1967
Abstract Isopropyl and 2-chloroethyl 3-O-methyl-β- d -glucopyranosiduronic acids, but not the corresponding β- d -glucopyranosides, are hydrolyzed in acid solution at a rate higher than that for the unmethylated compounds. The hydrolysis of 6-O-methyl-β- d -glucopyranosides is independent of the polarity of the aglycon. Several 5-C-substituted methyl
M.D. Saunders, T.E. Timell
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Acid hydrolysis of monoclonal antibodies

Journal of Immunological Methods, 1995
For analysis of monoclonal antibodies using polyacrylamide gel electrophoresis, two hydrolytic fragments derived from the heavy chain of mouse IgG1 were produced during incubation of the antibodies in Laemmli reducing sample buffer at 100 degrees C for 5 min. The cleavage sites were identified by amino terminal sequencing.
J, Davagnino, C, Wong, L, Shelton, S, Mankarious   +3 more
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Acidic hydrolysis of pyrimidine deoxyribonucleotides

Biochimica et Biophysica Acta (BBA) - Nucleic Acids and Protein Synthesis, 1973
Abstract 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
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Feulgen Hydrolysis with Phosphoric Acid

Stain Technology, 1953
Sections 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
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Acid hydrolysis of acidic mucopolysaccharides

Carbohydrate Research, 1966
Abstract 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.
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Enzymatic hydrolysis of alginic acid

Biochimica et Biophysica Acta, 1954
Abstract 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 ...
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Acid-Catalyzed Hydrolysis of Glycosides

1967
Publisher 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.
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Acid hydrolysis of chitosans

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 ...
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Acid Hydrolysis of Cellulose

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, Mahendra Moreshwar Gharpuray, Yong-Hyun Lee   +2 more
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