title: Structural characteristics and antioxidant activities of polysaccharides from longan seed.
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.
authors.affiliation: Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510640, People's Republic of China.
authors.forename: Guoxiang
authors.initials: G
authors.lastname: Jiang
authors.forename: Lingrong
authors.initials: L
authors.lastname: Wen
authors.forename: Feng
authors.initials: F
authors.lastname: Chen
authors.forename: Fuwang
authors.initials: F
authors.lastname: Wu
authors.forename: Sen
authors.initials: S
authors.lastname: Lin
authors.forename: Bao
authors.initials: B
authors.lastname: Yang
authors.forename: Yueming
authors.initials: Y
authors.lastname: Jiang
mesh_terms: D000975:Antioxidants / Q000008:administration & dosage / Q000737:chemistry / Q000302:isolation & purification; D001089:Arabinose / Q000737:chemistry; D001713:Biphenyl Compounds / Q000737:chemistry; D016166:Free Radical Scavengers / Q000032:analysis / Q000737:chemistry; D005638:Fruit / Q000737:chemistry; D005690:Galactose / Q000737:chemistry; D005947:Glucose / Q000737:chemistry; D008358:Mannose / Q000737:chemistry; D010084:Oxidation-Reduction; D011134:Polysaccharides / Q000008:administration & dosage / Q000737:chemistry / Q000302:isolation & purification; D029631:Sapindaceae / Q000737:chemistry; D012639:Seeds / Q000737:chemistry; D013016:Sound
chemical_list: D000975:Antioxidants; D001089:Arabinose; D001713:Biphenyl Compounds; D016166:Free Radical Scavengers; D005690:Galactose; D005947:Glucose; D008358:Mannose; D011134:Polysaccharides; C010574:biphenyl