Results 221 to 230 of about 163,926 (266)
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Improved enzymatic hydrolysis of hair
Forensic Science International, 1993An enzymatic hair extraction method is proposed for drug analysis. Pronase digestion of various aliquots of hair from a cocaine abuser was preceded by a 2-h incubation with a dithiothreitol solution. The extraction solution was tested to identify possible interferences in the radioimmunoassay and was compared with other hydrolysis methods to assess the
Offidani, C +2 more
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Assay of the enzymatic hydrolysis of pantetheine
Analytical Biochemistry, 1982Abstract Four rapid, independent assays of enzymatic pantetheine hydrolysis are described and compared using an enzyme partially purified from pig kidney. Two assays detect specifically the hydrolysis products: cysteamine (2-aminoethanethiol) is measured by the absorbance of its fluoropyruvate adduct at 300 nm and pantothenate is measured by ...
C, Wittwer, B, Wyse, R G, Hansen
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KINETICS OF THE ENZYMATIC HYDROLYSIS OF SARIN
Canadian Journal of Biochemistry and Physiology, 1956The enzymatic hydrolysis of sarin is apparently a single first-order reaction. There is no evidence of different reaction rates for the two possible optical isomers of sarin. During both the enzymatic and the non-enzymatic hydrolyses, sarin appears to be detoxified somewhat more rapidly than the manometric results would indicate.
P A, ADIE, F C, HOSKIN, G S, TRICK
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Nature, 1953
A PREVIOUS investigation1 has shown that enzymes from Chœtomium globosum are able to hydrolyse wheat straw xylan to xylose with the formation of a series of intermediates, designated a,b,c, … g, which appear on paper-chromatograms with regularly decreasing RF-values, and which are believed to be oligosaccharides with regularly increasing xylose units ...
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A PREVIOUS investigation1 has shown that enzymes from Chœtomium globosum are able to hydrolyse wheat straw xylan to xylose with the formation of a series of intermediates, designated a,b,c, … g, which appear on paper-chromatograms with regularly decreasing RF-values, and which are believed to be oligosaccharides with regularly increasing xylose units ...
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The enzymatic hydrolysis of folate analogues
Biochemical Pharmacology, 1968Abstract The enrichment culture technique has been used to isolate bacteria which contain enzymes for the hydrolysis of the terminal amino acid in various folate analogues. Each of the three purified enzymes is specific for the hydrolysis of only one of the following compounds : 4-amino-4-deoxypteroylalanine, 4-amino-4-deoxypteroyl-aspartate and 4 ...
P, Goldman, C C, Levy
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Semicontinuous enzymatic hydrolysis of lignocelluloses
Biotechnology and Bioengineering, 1991AbstractLignocelluloses (steamed hardwood and hardwood kraft pulp) were semicontinuously hydrolyzed on a large scale [2‐2. 5 kg of substrate vs. 20, 000 IU filter paperase (FPase)] using a 10‐L hydrolysis reactor with an ultrafiltration unit for the recovery and reuse of cellulases.
M, Ishihara +3 more
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Mechanisms of enzymatic glycoside hydrolysis
Current Opinion in Structural Biology, 1994The determination of a large number of three-dimensional structures of glycosidases, both free and in complex with ligands, has provided valuable new insights into glycosidase catalysis, especially when coupled with results from studies of specifically labelled glycosidases and kinetic analyses of point mutants.
J D, McCarter, S G, Withers
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Enzymatic hydrolysis of organic phosphorus.
2004International ...
Quiquampoix, Herve, Mousain, Daniel
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The enzymatic acylation and hydrolysis of lysolecithin
Biochimica et Biophysica Acta (BBA) - Lipids and Lipid Metabolism, 1965The present experiments show that lysolecithin is converted to lecithin by ratliver preparations which are free from cell particles. In this process lysolecithin is esterfied directly rather than being degraded to simpler compounds which are subsequently incorporated into lecithin. Two separate reactions are postulated whereby lysolecithin is converted
J F, Erbland, G V, Marinetti
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Enzymatic hydrolysis of prolyl- and hydroxyprolylnaphthylamides
Archives of Biochemistry and Biophysics, 1956Abstract 1. 1. Two chromogenic iminopeptides, l -prolyl- and hydroxy- l -prolyl-β-naphthylamides, were prepared, and the kinetics of hydrolysis of the prolyl compound were investigated. 2. 2. Attempts to employ these substrates histochemically with frozen-dried tissues were unsuccessful. 3. 3.
J E, FOLK, M S, BURSTONE
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