Structural characteristics and antioxidant activities of polysaccharides from longan seed

Carbohydr Polym. 2013 Jan 30;92(1):758-64. doi: 10.1016/j.carbpol.2012.09.079. Epub 2012 Oct 8.

Abstract

Ultrasound-assisted extraction was employed to extract polysaccharides from longan seed (LSP), with aids of a Box-Behnken statistical design to investigate the effects of ultrasonic power, time and liquid/solid ratio on the extraction recovery of the LSP. The structural analysis indicated that arabinose, galactose, glucose and mannose were major components of LSP, with →6)-Gal-(→1, Glc-(→1 and →6)-Glc-(1→ glycosidic linkages. In an in vitro antioxidant activity of the 1,1-diphenyl-2-picryldydrazyl radical-scavenging assay, LSP exhibited a dose-dependent property within the concentration range tested.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Antioxidants* / administration & dosage
  • Antioxidants* / chemistry
  • Antioxidants* / isolation & purification
  • Arabinose / chemistry
  • Biphenyl Compounds / chemistry
  • Free Radical Scavengers* / analysis
  • Free Radical Scavengers* / chemistry
  • Fruit / chemistry
  • Galactose / chemistry
  • Glucose / chemistry
  • Mannose / chemistry
  • Oxidation-Reduction
  • Polysaccharides* / administration & dosage
  • Polysaccharides* / chemistry
  • Polysaccharides* / isolation & purification
  • Sapindaceae / chemistry
  • Seeds / chemistry
  • Sound

Substances

  • Antioxidants
  • Biphenyl Compounds
  • Free Radical Scavengers
  • Polysaccharides
  • diphenyl
  • Arabinose
  • Glucose
  • Mannose
  • Galactose