摘要
对竹黄子实体总多糖进行提取,分离纯化出2种均一的组分BSP-1和BSP-2。采用气相色谱和凝胶渗透色谱研究BSP-1的组成和分子量,并研究其对猪油的抗氧化作用。结果表明:BSP-1分子量为45.64 ku,主要由葡萄糖和甘露糖组成,摩尔比为2.46∶1,红外光谱分析表明含有β-糖苷键,体外抗氧化实验证明BSP-1具有一定的抗猪油自动氧化能力。
Crude polysaccharide was obtained by extracting Shiraia bambusicola. The polysaccharide was separated into two homogenous fractions （BSP-1 and BSP-2）. Molecular weight and composition of BSP-1 were determined by gel filtration and gas chromatography. Its anti-oxidative effect for lard was also studied. The results showed that molecular weight of BSP-1 was 45.64 ku and it was comprised of glucose and mannose in a molar ratio of 2.46：1. The infrared ray spectrum indicated β-glucosidal bond in BSP-1. BSP-1 fraction demonstrated remarkable antioxidant ability for lard in in vitro experiments.
出处
《食品研究与开发》
CAS
北大核心
2008年第8期120-123,共4页
Food Research and Development
关键词
竹黄
多糖
分子量
抗氧化性
Shiraia bambusicola
polysaccharide
molecular weight
antioxidant activity
