Carbohydrate polymers 2013-01-30

Structural characteristics and antioxidant activities of polysaccharides from longan seed.

Guoxiang Jiang, Lingrong Wen, Feng Chen, Fuwang Wu, Sen Lin, Bao Yang, Yueming Jiang

Index: Carbohydr. Polym. 92(1) , 758-64, (2013)

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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.Copyright © 2012 Elsevier Ltd. All rights reserved.