The effect of five types of macro-resin on the decoloration of mulberry leaves polysaccharides was studied.The results showed that resin AB-8 represented the best decoloration ability.The best conditions for decoloration were determined as follows:concentration of polysaccharide solution 3%;flow rate:37ml/h.Under these conditions,the decoloration rate was 82% for 5BV treatment capacity and polysaccharide recovery rate was 83%.In the mean time,the regeneration of resin AB-8 was evaluated.The experiments indi...