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Separation, Purification and Structural Analysis of Acidic Heteropolysaccharides from Spirulina platensis

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Author:
No author available
Journal Title:
CHINESE TRADITIONAL AND HERBAL DRUGS
Issue:
5
DOI:
10.3321/j.issn:0253-2670.2000.05.003
Key Word:
螺旋藻;酸性杂多糖;PSP1;PSP2

Abstract: 螺旋藻藻粉经热水抽提,乙醇沉淀,Sevag法去蛋白质,十六烷基三甲基溴化铵(CTAB)沉淀得酸性杂多糖,再经DEAE-纤维素柱层析分级纯化两次得多糖PSP1和PSP2.PSP1和PSP2经HPLC的Carbohydrate Analysis 柱层析为单一对称峰,证明为均一多糖.纸层析和硫酸-咔唑反应分析表明:PSP1主要由D-半乳糖、D-甘露糖、葡萄糖醛酸及D-葡萄糖四种残基组成,比例为2.1∶3.0∶1.9∶2.8;PSP2主要由D-甘露糖和葡萄糖醛酸两种残基组成,比例为6.2∶3.8.由粘度法测得其分子量分别为12 400和16 800.IR、1HNMR和13CNMR证明:SP11主要含α型糖苷键及部分β型糖苷键,PSP2主要含α型糖苷键.

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