Results 151 to 160 of about 23,435 (201)
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Carbohydrate Polymers, 2014
Xanthans occurring in different levels of disordered conformation were enzymatically hydrolyzed to their six pentamer repeating units (RUs). The RUs present in the enzyme digests were analyzed using LC-MS. As only disordered xanthan segments are degraded by cellulases, the influence of the six different RUs on the transitional behavior of xanthan could
Kool, M.M. +3 more
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Xanthans occurring in different levels of disordered conformation were enzymatically hydrolyzed to their six pentamer repeating units (RUs). The RUs present in the enzyme digests were analyzed using LC-MS. As only disordered xanthan segments are degraded by cellulases, the influence of the six different RUs on the transitional behavior of xanthan could
Kool, M.M. +3 more
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Immune responses to xanthan gum I. The characteristics of lymphocyte activation by xanthan gum
European Journal of Immunology, 1983AbstractXanthan gum (XG), a microbial polysaccharide produced extracellularly by fermentation of Xanthomonas campestris, has unique physical properties. We studied the effects of XG on murine lymphocytes in vitro and found that XG induced both a significant increase of DNA synthesis in mouse splenic B cells and thymocytes as well as polyclonal IgM and ...
S, Ishizaka +4 more
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Behaviour of xanthan in cadoxen
Carbohydrate Polymers, 1990Abstract The stability of xanthan versus time in cadoxen at 20°C has been studied using optical rotation, viscosimetry and light scattering. For xanthan samples with a high initial molecular weight, the relative and the intrinsic viscosities, the weight average molecular weight and the radius of gyration of the samples continuously decrease with time.
Milas, M., Tinland, B.
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Electron microscopy of native xanthan and xanthan exposed to low ionic strength
Biopolymers, 1989AbstractOptical rotation data indicate that xanthan can exist both in an ordered and a disordered conformation. Using molecular weights obtained from light scattering measurements and contour length distributions obtained from electron micrographs, we find that a native, filtered xanthan exposed to low salinity (< 10−4M NaCl) and subsequently ...
Bjørn T. Stokke +2 more
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Plasma enhanced modification of xanthan and its use in chitosan/xanthan hydrogels
Polymer Engineering & Science, 2013This study reports the design and construction of a fluidized bed/non‐equilibrium atmospheric‐pressure‐plasma reactor. The mechanical design of the reactor was devised to modify chemically and physically the surface of different powders. The basis for developing the design and construction of the reaction system were the non‐equilibrium atmospheric ...
A.J. Martínez‐Gómez +4 more
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Kinetics of the xanthan fermentation
Biotechnology and Bioengineering, 1973AbstractXanthan gum, a heteropolysaccharide with unusual and useful properties, is now produced commercially by fermentation with Xanthomonas compestris NRRL B–1459 in a medium containing glucose, minerals, and a complex nitrogen source—distillers' dried solubles (DDS).
R. A. Moraine, P. Rogovin
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Rheological Properties of Xanthan and Xanthan-Galactomannan Gum Mixtures
1990Luyten, H., Kloek, W., van Vliet, T.
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