By studying the impact of six macroporous resins and two ion exchange resins on decolorization of ginkgo polysaccharide pigment,three resins were selected: Macroporous anion exchange resin decoloration No.1,D900 and the non-polar macroporous adsorption resin DA-201C.Optimization of decoloration experiments were carried out by orthogonal experiment.Based on the static adsorption experiment,better resins were then chosen for dynamic experiment.The results showed that ginkgo polysaccharide pigment was mainly non-polar small molecules with negative charged.Using Decoloration No.1 resin,under the conditions of pH value 4.5,25 ℃,the columns speed 1.5mL/min,the concentration of the sample 4mg/ml and the column capacity of 2BV,the decolorization rate of the polysaccharide was 82.37%,the retention rate of the polysaccharide was 79.12% and the protein removal rate was 88.39%.
Yang Qiang
,
Li Xin-hua
,
Lin Zi-mu
. Study on the Decolorization Technology of Ginkgo Polysaccharide by Resins[J]. Food and Fermentation Industries, 2012
, 38(12)
: 107
-110
.
DOI: 10.13995/j.cnki.11-1802/ts.2012.12.030