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    Effects of Partial Desulfation on Antioxidant and Inhibition of DLD Cancer Cell of Ulva Fasciata Polysaccharide

    Access Status
    Fulltext not available
    Authors
    Shao, Ping
    Pei, Yaping
    Fang, Zhongxiang
    Sun, Peilong
    Date
    2014
    Type
    Journal Article
    
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    Citation
    Shao, Ping and Pei, Yaping and Fang, Zhongxiang and Sun, Peilong. 2014. Effects of Partial Desulfation on Antioxidant and Inhibition of DLD Cancer Cell of Ulva Fasciata Polysaccharide. International Journal of Biological Macromolecules. 65: pp. 307-313.
    Source Title
    International Journal of Biological Macromolecules
    DOI
    10.1016/j.ijbiomac.2014.01.043
    ISSN
    1879-0003
    URI
    http://hdl.handle.net/20.500.11937/5234
    Collection
    • Curtin Research Publications
    Abstract

    Ulva fasciata belonging to the family Ulvaceae, commonly known as ‘sea lettuce’, is an abundantly growing green seaweed in coastal seashore of South China. Three different molecular weight sulfated polysaccharides (UFP1, UFP2 and UFP3) were extracted and separated from U. fasciata by hot water extraction and ultrafiltration. The three native UFP fractions had partial desulfurization by solvolytic desulfation respectively and the effect of sulfate content on the exhibition of the antioxidant and anti-tumor capacities had been evaluated and compared. The results showed that each native polysaccharide (UFP1, UFP2, UFP3) with high sulfate content exhibited better antioxidant activities compared with the partial desulfated polysaccharides (DS-UFP1, DS-UFP2, DS-UFP3). Specifically, UFP2 with relatively high sulfate content, molecular weight and uronic acid content had consistently excellent antioxidant performances. However, UFP2 demonstrated the minimal inhibitory effects on growth of DLD intestinal cancer cells. Instead, DS-UFP3 with the lowest sulfate content but highest uronic acid content and molecular weight exhibited the best antitumor activity.

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