De-coloration of polysaccharide from litchi fruits by micro-porous adsorbent resins
2012
De-coloration of litchi polysaccharides by micro-porous adsorbent resin was studied.The effect of nine types of resins in decolorizing litchi polysaccharides was investigated and the absorption resin HPD-100 represented best de-colorizing ability.De-coloration experiments were carried out by single experiment and orthogonal experiment.The best conditions for de-coloration were determined as follows:temperature 30 ℃,time 1.5 h,polysaccharide/resin 12:1.Under these conditions,the results were as follows:75.54% de-coloration rate,75.43% polysaccharide holding rate.Experiments also indicated that litchi colorants were most possibly non-polar and small-molecular-weight substances.
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