Optimization of ultrasonic extraction process of polysaccharides from Ornithogalum Caudatum Ait and evaluation of its biological activities

被引：148

作者：

Chen, Ruizhan ^{[1
]}

Li, Yuan ^{[1
]}

Dong, Hang ^{[1
]}

Liu, Zhiqiang ^{[2
]}

Li, Shizhe ^{[1
]}

Yang, Simin ^{[1
]}

Li, Xinlong ^{[1
]}

机构：

[1] Changchun Normal Univ, Coll Chem, Changchun 130032, Peoples R China

[2] Chinese Acad Sci, Changchun Inst Appl Chem, Changchun 130022, Peoples R China

来源：

ULTRASONICS SONOCHEMISTRY | 2012年 / 19卷 / 06期

关键词：

Polysaccharides; Ultrasound extraction; Ultrafiltration; Antioxidant activity; Immunomodulatory activity; RADICAL SCAVENGING ACTIVITY; WATER-SOLUBLE POLYSACCHARIDES; ASSISTED EXTRACTION; ANTIOXIDANT ACTIVITY; FRUIT PERICARP; PURIFICATION; AUTOXIDATION; ALKALI;

D O I：

10.1016/j.ultsonch.2012.03.008

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

Ultrasonic extraction technique (UET) was used to extract crude polysaccharides (OCAP) from Ornithogalum Caudatum Air (OCA), an orthogonal experiment (L-9 (3)(4)) was applied to optimize extraction conditions. Membrane separation technology and gel filtration chromatography were used to fractionate OCAP, the antioxidant and immunomodulatory activities were evaluated by radical scavenging and spleen lymphocyte proliferation assay. The optimal conditions were determined: extraction time 60 min, ultrasound power 500 W, ratio of water to raw material 30 ml/g and extraction number 3. Under these conditions, the yield of OCAP was 36.77 +/- 1.76%. OCAP was fractionated into three major fractions (OCAP-I, OCAP-II and OCAP-II), that all fractions possessed considerable antioxidant activity. OCAP-Il and OCAP-III exhibited good immunomodulatory activities. The results indicated that UET is a very useful method for extraction bioactive polysaccharides from plant materials. OCAP could be explored as a potential antioxidant and immunostimulating agent for use in medicine or functional foods. Crown Copyright (C) 2012 Published by Elsevier B.V. All rights reserved.

引用

页码：1160 / 1168

页数：9

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