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  • Ehrlich carcinoma  (1)
  • Kjellmaniella crassifolia  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Changes in M:G ratios of extracted and residual alginate fractions on boiling with water the dried brown alga Kjellmaniella crassifolia (Laminariales, Phaeophyta) (1996)
    Springer
    Hydrobiologia 326-327 (1996), S. 515-518 
    Details
    ISSN: 1573-5117
    Keywords: alkali-soluble alginate ; block structure ; boiling water-soluble alginate ; brown alga ; Kjellmaniella crassifolia ; M:G ratio ; seaweed
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Kjellmaniella crassifolia, the edible macro-brown alga in Japan contained nearly 27% of alginates of which nearly 7% was extractable from the fronds with boiling water for 6 h and the residual alginates in the frond were almost exhaustively extracted with a dilute alkali at 60 °C for 6 h. The alginates dissolved in all these extracts with both boiling water and dilute alkali were purified by fractionation with MgCl2 and alcohol. The content of MM blocks in the boiling water-soluble alginate sample increased remarkably during heating for 6 h while that of GG blocks from the same sample decreased. In contrast, MM blocks in the alkali-soluble alginate sample decreased during 6 h heating while GG blocks continued to increase. Since the amounts of MG blocks showed slight fluctation, the M:G ratio of alginates extracted with boiling water increased towards the end of extraction whereas the reverse is true for the alkali-soluble alginates.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00047855
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Antitumor activity of marine algae (1990)
    Springer
    Hydrobiologia 204-205 (1990), S. 577-584 
    Details
    ISSN: 1573-5117
    Keywords: antitumor ; Ehrlich carcinoma ; lipids ; Meth-A fibrosarcoma ; polysaccharides ; seaweed
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Powdered tissue from 46 species of air-dried marine algae (four green, 21 brown and 21 red algae) were screened for antitumor activity. Significant activity against Ehrlich carcinoma was found in the brown algae Scytosiphon lomentaria (69.8% inhibition), Lessonia nigrescens (60.0%), Laminaria japonica (57.6%), Sargassum ringgoldianum (46.5%), the red algae Porphyra yezoensis (53.2%) and Eucheuma gelatinae (52.1%) and the green alga Enteromorpha prolifera (51.7%). Five brown and four red algae showed appreciable antitumor activity against Meth-A fibrosarcoma. To identify specific molecules with antitumor activity, 15 kinds of polysaccharide preparations of seaweed origin and 24 kinds of lipid fractions extracted from various seaweeds were tested. Appreciable inhibition of Ehrlich carcinoma was found for fucoidan preparations from Undaria pinnatifida and Sargassum ringgoldianum, for carrageenans and for porphyran. Several glycolipid and phospholipid fractions from brown and red algae were effective against Meth-A fibrosarcoma.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00040290
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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