College of Chemistry and Life Science, Zhejiang Normal University, Jinhua 321004, China.
College of Chemistry and Life Science, Zhejiang Normal University, Jinhua 321004, China.
Carbohydr Polym. 2016 Aug 1;146:224-30. doi: 10.1016/j.carbpol.2016.03.060. Epub 2016 Mar 22.
Dragon fruit is a tropical fruit with good taste. It can bring health benefits to human body. As one of the major bioactive components in this fruit, the polysaccharides might contribute to the health benefits. However, the precise structure information remains unknown. A leading polysaccharide of dragon fruit pulp, DFPP, was purified and identified by NMR and GC-MS. →4-β-d-GlcpA-1→, →6-β-d-Galp-1→ and →4-α-l-Rhap-1→ constituted the backbone and α-l-Araf-1→5-α-l-Araf-1→ formed the branch chain. The precise structure was putatively identified as below. The molecular weight was 2.2×10(3)kDa. The structure information of polysaccharides will be helpful to understand this fruit.
火龙果是一种口感良好的热带水果，它可以给人体带来健康益处。作为这种水果的主要生物活性成分之一，多糖可能对健康有益。然而，其确切的结构信息尚不清楚。一种主要的火龙果果肉多糖，DFPP，通过 NMR 和 GC-MS 进行了分离和鉴定。→4-β-d-GlcpA-1→、→6-β-d-Galp-1→和→4-α-l-Rhap-1→构成了主链，α-l-Araf-1→5-α-l-Araf-1→形成了支链。其确切结构被推测如下。分子量为 2.2×10(3)kDa。多糖的结构信息将有助于了解这种水果。
