Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Kristin Voiges"'
Autor:
Petra Mischnick, Kristin Voiges, Julia Cuers-Dammann, Inga Unterieser, Patrick Sudwischer, Anika Wubben, Payam Hashemi
Publikováno v:
Polysaccharides, Vol 2, Iss 4, Pp 843-865 (2021)
The complexity of the substituent distribution in polysaccharide derivatives is discussed and defined. The challenges regarding analytical characterization that results from various interrelated categories of distributions, including molecular weight
Externí odkaz:
https://doaj.org/article/ee35fc8d4a2c45be9c78732f873ba660
Publikováno v:
Cellulose. 24:627-639
The rate of acid-catalyzed hydrolysis of O-ethyl-O-methyl-cellulose (EMC) and O-methoxyethyl-O-methyl-cellulose (MEMC), respectively, has been studied. By a two-step depolymerization procedure and monitoring of all individual substitution patterns, r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3f3e244e6c6a1f2120e01885ac10d3b9
https://doi.org/10.1007/s10570-016-1170-0
https://doi.org/10.1007/s10570-016-1170-0
Publikováno v:
Cellulose. 24:555-569
The kinetics of the hydrolysis of methyl cellulose (MC, DS 1.27 and 1.95) was studied by a two-step procedure, comprising partial hydrolysis in 1 M TFA in water and water/acetone at 120 °C for various time periods, labeling of generated reducing end
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e56cfa98f463ade31563481300fb1266
https://doi.org/10.1007/s10570-016-1131-7
https://doi.org/10.1007/s10570-016-1131-7
Publikováno v:
Macromolecular Chemistry and Physics. 214:1363-1374
Hydroxyethylmethyl celluloses (MSHE 0.15–0.26, DSMe 1.49–1.82) and hydroxyethyl celluloses (MSHE 1.89–3.03) are analyzed with respect to their substituent distribution in the polymer chains. The cellulose ethers are peralkylated and partially h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::70324b6d6e3b7c5f2905a9cc202dc7bc
https://doi.org/10.1002/macp.201300070
https://doi.org/10.1002/macp.201300070
Autor:
Christian Bork, Rudi F. Vogel, Markus J. Brandt, Heinrich Rübsam, Thomas Becker, Petra Mischnick, Christine Rühmkorf, Kristin Voiges
Publikováno v:
European Food Research and Technology. 235:139-146
The effect of structurally different bacterial homoexopolysaccharides on gluten-free bread quality and their properties to act as hydrocolloids was investigated. Furthermore, exopolysaccharides (EPS) were analyzed structurally by asymmetrical flow fi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::12ec45cf6e8666faedf31d5d32c9fbe0
https://doi.org/10.1007/s00217-012-1746-3
https://doi.org/10.1007/s00217-012-1746-3
Publikováno v:
Cellulose. 19:993-1004
The alditol acetate method is a common procedure for sugar analysis, also applied to determine the substituent distribution in monomer units of polysaccharide ethers like methyl cellulose by gas liquid chromatography. Consisting of several preparatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b3206747f86d69864296831749e0abdd
https://doi.org/10.1007/s10570-012-9663-y
https://doi.org/10.1007/s10570-012-9663-y
Publikováno v:
Rapid Communications in Mass Spectrometry. 25:2201-2208
Mass spectrometry is widely applied in carbohydrate analysis, but still quantitative evaluation of data is critical due to different ionization efficiencies of the constituents in a mixture. Different size and chemical structure of the analytes cause
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ad50788ecccdb87fcb6063f1c11579be
https://doi.org/10.1002/rcm.5105
https://doi.org/10.1002/rcm.5105
Publikováno v:
European Polymer Journal. 46:1726-1735
Spruce sulphite cellulose (number average degree of polymerization 620) dissolved in an aqueous solution of 8% (w/w) LiOH*H2O and 12% (w/w) urea was methylated with dimethyl sulphate (DMS). By varying the reaction temperature between 22 and 50 °C, t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f85d49822a5e75da38ea3d20b32364a
https://doi.org/10.1016/j.eurpolymj.2010.05.009
https://doi.org/10.1016/j.eurpolymj.2010.05.009
Publikováno v:
Biomacromolecules. 13(7)
Regioselective synthesis of cellulose esters is extremely difficult due to the small reactivity differences between cellulose hydroxyl groups, small differences in steric demand between acyl moieties of interest, and the difficulty of attaching and d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::acd90ce6781e0e0ab6388d2433a6d452
https://pubmed.ncbi.nlm.nih.gov/22657561
https://pubmed.ncbi.nlm.nih.gov/22657561
Publikováno v:
Analytical and bioanalytical chemistry. 395(6)
Dextrans from Leuconostoc ssp., alpha-1,6-linked glucans branched at O-3, were O-methylated in DMSO with lithium dimsyl and methyl iodide under various conditions. Methyl substituent distribution was comprehensively studied in the terminal, internal,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6cc8961fabc78e14485dbddf5fdb411b
https://pubmed.ncbi.nlm.nih.gov/19688342
https://pubmed.ncbi.nlm.nih.gov/19688342