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  • seaweed  (2)
  • PACS. 75.30.Fv Spin density wave - 05.70.Ln Non-equilibrium thermodynamics, irreversible processes  (1)
  • alginate  (1)
  • alginates  (1)
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  • 1
    Electronic Resource
    Electronic Resource
    Effects of alginates on the ingestion and excretion of cholesterol in the rat (1993)
    Springer
    Journal of applied phycology 5 (1993), S. 207-211 
    Details
    ISSN: 1573-5176
    Keywords: alginates ; cecum ; cholesterol ; excretion ; food efficiency ; ingestion ; rat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The effects of three forms of alginate (free acid, sodium and calcium salts) on ingestion and excretion of cholesterol in the rat were studied. For two weeks, Male Sprague-Dawley rats were fed a cholesterol-rich diet containing 3% alginate from the brown alga Ascophyllum nodosum. The food efficiency of the three types of alginate was: Na-alginate 〉 Ca-alginate 〉 alginic acid. A significant increase in the weight of cecum was also observed in alginate diets. Alginate was not effective in preventing the elevation of serum total cholesterol levels, although irregularly changing patterns were observed. The cholesterol level of liver showed a tendency to decrease with alginate feeding, while fecal excretion of cholesterol increased.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00004019
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Extraction of alginic acid from a Brazillian brown alga, Laminaria brasiliensis (1987)
    Springer
    Hydrobiologia 151-152 (1987), S. 551-555 
    Details
    ISSN: 1573-5117
    Keywords: seaweed ; alginate ; yield ; M:G ratio ; brown algae ; Laminaria brasiliensis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00046181
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Low temperature thermodynamical properties of the organic chain conductor (TMTSF) AsF (1999)
    Springer
    The European physical journal 7 (1999), S. 541-550 
    Details
    ISSN: 1434-6036
    Keywords: PACS. 75.30.Fv Spin density wave - 05.70.Ln Non-equilibrium thermodynamics, irreversible processes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: We report on specific heat measurements of the quasi-one-dimensional organic salt (TMTSF)2AsF6 in its spin density wave state between 75 mK and 7 K. Similarly to (TMTSF)2PF6, we find discontinuities in the lattice contribution at 1.9 K an d 3.5 K ascribed to sub-spin density wave phases. Time-dependent effects due to dynamics of low-energy excitations in metastable states occur only below 0.2 K which yields an activation energy for the equilibrium energy relaxation process of 0.34 K, 4-5 times smaller than found for (TMTSF)2PF6. Finally the reduction of the low-energy excitations contribution to the specific heat in comparison to PF6 reveals an intermediate cubic-like regime between 0.25 and 0.5 K that we tentatively describe as the phason contribution of the incommensurate spin density wave modulation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100510050647
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Sugar constituents of fucose-containing polysaccharides from various Japanese brown algae (1990)
    Springer
    Hydrobiologia 204-205 (1990), S. 573-576 
    Details
    ISSN: 1573-5117
    Keywords: brown algae ; fucose-containing polysaccharide ; neutral sugar ; seaweed ; uronic acid
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Sugar constituents of the fucose-containing polysaccharides (FCPs) from 21 species of brown algae were analyzed. FCPs were extracted with hot water (100 °C, 4 h), separated by precipitation with 20% (v:v) ethanol in the presence of 0.05 M MgCl2 to remove contaminating soluble alginate, and purified by DEAE-Sephadex column chromatography. The samples were hydrolyzed with HCI, and neutral sugar and uronic acid were separated by anion exchange chromatography. Their amounts were determined by gas-liquid chromatography. The neutral sugars in the FCPs from Ishige okamurae, Laminaria ochotensis, Myelophycus simplex, Padina arborescens and Sargassum thunbergii all contained arabinose, fucose, galactose, glucose, mannose, rhamnose and xylose residues. The FCPs from Ishige okamurae, Padina arborescens, Sargassum hemiphyllum, S. patents and S. sagamianum contained the four uronic acids, galacturonic acid, glucuronic acid, guluronic acid and mannuronic acid.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00040289
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    Paper (German National Licenses)
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