Zobrazeno 1 - 10
of 43
pro vyhledávání: '"Lesley A.S. Parolis"'
Publikováno v:
Colloids and Surfaces A: Physicochemical and Engineering Aspects. 317:109-115
Metal cations have been shown to depress the floatability of siliceous minerals indicating an interaction with the mineral surface. In this work, the effect of metal cations on the interaction of sodium carboxymethyl cellulose (CMC) depressants and t
Publikováno v:
Minerals Engineering. 20:970-978
Carboxymethyl cellulose (CMC) is commonly used as a depressant for talcaceous minerals. To assess whether CMC depressants are strongly, or weakly and reversibly bound to the surface of talc, desorption experiments were conducted on New York talc. The
Publikováno v:
Mining, Metallurgy & Exploration. 22:12-16
The effect of molecular weight, charge and the presence of the cations Ca2+, Mg2+and K+ on the adsorption of carboxymethyl cellulose on pure talc obtained from Balmat, New York have been investigated. Higher adsorption densities were obtained in the
Autor:
Anders Broberg, Wim Nerinckx, Jens Ø. Duus, Lesley A.S. Parolis, Patricia Ntarima, Marc Claeyssens, Haralambos Parolis
Publikováno v:
Carbohydrate Research. 339:1047-1060
The structures of several enzymatic hydrolysis products of Nothogenia erinacea seaweed xylan, a linear homopolymer with mixed β-(1 → 3)/β-(1 → 4) linkages, were analysed by physicochemical and biochemical techniques. With the glycoside hydrolas
Publikováno v:
Carbohydrate Research. 321:246-256
The primary structure of the O-antigen of Escherichia coli O116:K + :H10 was shown by monosaccharide analysis, a partial hydrolysis study and by 1D and 2D 1 H and 13 C NMR spectroscopy to be composed of linear pentasaccharide repeating units with the
Autor:
Francisco Rodriguez-Valera, Nikolai A. Paramonov, Haralambos Parolis, Isabel F. Boán, Josefa Antón, Lesley A.S. Parolis
Publikováno v:
Carbohydrate Research. 319:133-140
The structure of a linear, acidic exopolysaccharide isolated from the Archaeon Haloferax denitrificans ATCC 35960 has been determined using NMR spectroscopy. The sugar residues in the repeating unit of the polysaccharide were identified as Gal and Gl
Publikováno v:
Carbohydrate Research. 323:103-110
The primary structure of the O-antigen of Escherichia coli O117 was shown by monosaccharide analysis, methylation analysis, and by 1D and 2D 1 H and 13 C NMR spectroscopy to be composed of linear pentasaccharide repeating units with the structure:
Autor:
Francisco Rodriguez-Valera, Nikolai A. Paramonov, Haralambos Parolis, Lesley A.S. Parolis, Isabel F. Boán, Josefa Antón
Publikováno v:
Carbohydrate Research. 309:89-94
The structure of the neutral exocellular polysaccharide isolated from the Archaeon Haloferax gibbonsii (ATCC 33959) has been determined using acid hydrolysis, methylation analysis and NMR spectroscopy. The polysaccharide contained d -Man, d -Glc, d -
Publikováno v:
Carbohydrate Research. 293:101-117
The phosphomannan core of the exopolysaccharide of Pichia (Hansenula) holstii NRRL Y-2448 was isolated after hydrolytic removal of the oligosaccharide phosphate side-chains. The core polysaccharide and its dephosphorylated derivative were subjected t
Publikováno v:
Carbohydrate Research. 269:295-302
The annexed structure of the capsular polysaccharide of Escherichia coli O9:K35:H- (A104a) has been determined by glycose and methylation analysis, base-catalysed degradation, and 1D and 2D NMR spectroscopy on the polysaccharide and the products obta