Research on the Decolorization Process of Indigo Fruit Polysaccharide Activated Carbon
In order to optimize the process conditions of indigo fruit polysaccharide decolorization by activated carbon method,the evaluation indicators of polysaccharide decolorization rate and polysaccharide retention rate were studied.Single factor experiments were conducted to investigate the effects of activated carbon dosage,decolorization time,decolorization temperature,and pH on the decolorization effect of indigo fruit polysaccharide;On the basis of single factor experiments,L9(34)orthogonal experiments were used to optimize process parameters.The results showed that the primary and seconda-ry order affecting the decolorization rate and polysaccharide retention rate of indigo fruit polysaccharides was pH>activated carbon dosage>decolorization time>decolorization temperature.The optimized optimal process parameters were:activated carbon dosage of 4%,decolorization time of 40 minutes,decolorization temperature of 40℃,pH 6.0.Under these condi-tions,the decolorization rate of indigo fruit polysaccharides was 68.74%,and the polysaccharide retention rate was 78.62%.Experimental results have shown that the decolorization method using indigo fruit polysaccharide activated carbon is effective,easy to operate,and convenient for industrial production.
Indigo fruit polysaccharidesOrthogonal experimentsActivated carbonDecolorization
万方数据
维普
