Adsorption Properties of Polysaccharides from Morinda officinalis onto Ion Exchange Adsorbent

doi:10.7506/spkx1002-6630-200915024

FOOD SCIENCE ›› 2009, Vol. 30 ›› Issue (15 ): 109-113.doi: 10.7506/spkx1002-6630-200915024

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Adsorption Properties of Polysaccharides from Morinda officinalis onto Ion Exchange Adsorbent

HE Chuan-bo1，LI Lin2，TANG Feng-xia1，XIONG He-jian1

1. School of Bioengineering, Jimei University, Xiamen 361021, China；
2. School of Light Chemistry and Food Science, South China University of Technology, Guangzhou 510640, China

Received:2009-05-06 Online:2009-08-01 Published:2010-12-29
Contact: HE Chuan-bo E-mail:hcbcc@sina.com

Abstract

Abstract:

The adsorption properties of polysaccharides from Morinda officinalis (MOP) onto an ion exchange adsorbent, DEAE Sepharose CL-6B, were studied. The effects of pH and ion strength on equilibrium adsorption capacity, isotherm and dynamic curve were discussed by static adsorption experiments. The equilibrium adsorption data obtained could be described well by the Langmuir isotherm equation with high correlation coefficients, suggesting the presence of monomolecular adsorption. The fitted curves could visually demonstrate the influences of pH and ion strength on MOP adsorption onto DEAE Sepharose CL-6B. This adsorbent exhibited better adsorption performance to MOP under higher pH and lower ion strength of buffer solution.

Key words: Morinda officinalis, polysaccharides, ion exchange, adsorption

CLC Number:

HE Chuan-bo1，LI Lin2，TANG Feng-xia1，XIONG He-jian1. Adsorption Properties of Polysaccharides from Morinda officinalis onto Ion Exchange Adsorbent[J]. FOOD SCIENCE, 2009, 30(15 ): 109-113.

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Adsorption Properties of Polysaccharides from Morinda officinalis onto Ion Exchange Adsorbent

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