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Molecules 2017, 22(2), 287; doi:10.3390/molecules22020287

Purification and Partial Structural Characterization of a Complement Fixating Polysaccharide from Rhizomes of Ligusticum chuanxiong

1
Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang 611130, China
2
Key Laboratory of Crop Ecophysiology and Farming System in Southwest China, Ministry of Agriculture, College of Agronomy, Sichuan Agricultural University, Wenjiang 611130, China
3
Department of Pharmaceutical Chemistry, School of Pharmacy, University of Oslo, P.O. Box 1068, Blindern 0316 Oslo, Norway
4
Animal Nutrition Institute, Sichuan Agricultural University, Wenjiang 611130, China
*
Author to whom correspondence should be addressed.
Academic Editor: Quan-Bin Han
Received: 31 January 2017 / Revised: 31 January 2017 / Accepted: 8 February 2017 / Published: 14 February 2017
(This article belongs to the Special Issue Natural Polysaccharides)
View Full-Text   |   Download PDF [1667 KB, uploaded 14 February 2017]   |  

Abstract

Rhizome of Ligusticum chuanxiong is an effective medical plant, which has been extensively applied for centuries in migraine and cardiovascular diseases treatment in China. Polysaccharides from this plant have been shown to have interesting bioactivities, but previous studies have only been performed on the neutral polysaccharides. In this study, LCP-I-I, a pectic polysaccharide fraction, was obtained from the 100 °C water extracts of L. chuangxiong rhizomes and purified by diethylaminethyl (DEAE) sepharose anion exchange chromatography and gel filtration. Monosaccharide analysis and linkage determination in addition to Fourier transform infrared (FT-IR) spectrometer and Nuclear magnetic resonance (NMR) spectrum, indicated that LCP-I-I is a typical pectic polysaccharide, with homo-galacturonan and rhamnogalacturonan type I regions and arabinogalactan type I and type II (AG-I/AG-II) side chains. LCP-I-I exhibited potent complement fixation activity, ICH50 of 26.3 ± 2.2 µg/mL, and thus has potential as a natural immunomodulator. View Full-Text
Keywords: Ligusticum chuanxiong; polysaccharides; purification; pectic polysaccharide; complement system Ligusticum chuanxiong; polysaccharides; purification; pectic polysaccharide; complement system
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MDPI and ACS Style

Zou, Y.-F.; Fu, Y.-P.; Chen, X.-F.; Austarheim, I.; Inngjerdingen, K.T.; Huang, C.; Eticha, L.D.; Song, X.; Li, L.; Feng, B.; He, C.-L.; Yin, Z.-Q.; Paulsen, B.S. Purification and Partial Structural Characterization of a Complement Fixating Polysaccharide from Rhizomes of Ligusticum chuanxiong. Molecules 2017, 22, 287.

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