林沛纯,谌素华,王维民,刘海韵,黄丹思,杨志强

• 1:广东海洋大学化学与环境学院
• 2:广东海洋大学食品科技学院
• 3:广东海洋大学深圳研究院

摘要(Abstract)：

【目的】探讨4种亨氏马尾藻岩藻聚糖的结构及其对氧化型低密度脂蛋白诱导HMVEC损伤的保护作用。【方法】以亨氏马尾藻岩藻聚糖(FD1)为原料,过Sepharose Cl-6B琼脂糖凝胶柱层析得到组分FS11,对FS11进行化学组成分析和单糖分析,测定F、FD1、FS1、FS11等4种岩藻聚糖的相对分子质量、糖链构象和红外光谱,进行结构鉴定;采用MTT法测定3种岩藻聚糖对HMVEC存活率的影响,研究4种岩藻聚糖对氧化型低密度脂蛋白诱导HMVEC损伤的保护作用。【结果】与F、FD1、FS1比,FS11硫酸基和多糖含量最高。FS11中岩藻糖含量高达52.744%;F、FD1、FS1、FS11的相对分子质量分布分别为474 576、459 032、201 285、190 049;I-KI紫外扫描和刚果红实验表明岩藻聚糖具有复杂树状分支和多股螺旋结构;红外光谱结果表明各组分均有O—H、C—H多糖特征官能团、S==O活性特征官能团;加药培养24 h,质量浓度为500μg/mL和1 000μg/mL的4种岩藻聚糖(F、FD1、FS1、FS11)均能显著减弱受氧化型低密度脂蛋白损伤的HMVEC的增殖抑制(P<0.01)。【结论】尾藻岩藻聚糖对氧化型低密度脂蛋白诱导的HMVEC损伤具有保护作用。

关键词(KeyWords)： 亨氏马尾藻;岩藻聚糖;结构鉴定;诱导损伤;HMVEC

Abstract:

Keywords:

基金项目(Foundation): 广东省自然科学基金项目(编号：2018A0303130020);; 国家级广东海洋大学大学生创新创业训练计划项目(CXXL2018005)

作者(Author): 林沛纯,谌素华,王维民,刘海韵,黄丹思,杨志强

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