An efficient method for decoloration of polysaccharides from the sprouts of Toona sinensis (A. Juss.) Roem by anion exchange macroporous resins.
An efficient decoloration method for polysaccharides from the sprouts of Toona sinensis (A. Juss.) Roem (PSTS) by anion exchange macroporous resins (AEMR) was investigated in the present paper. The results suggested that D941 resin offered better decoloration efficiency than other tested resins. Based on single-factor experiments, the optimal decoloration parameters of D941 resin were obtained as follows: temperature of 45°C, sample initial concentration of 30mg/ml, pH value of 8.5, static decoloration time of 90min, dynamic decoloration processing volume of 5.5BV with the flow rate of 2BV/h. Decoloration ratio, PSTS recovery ratio and selectivity coefficient were 91.94±1.23%, 90.05±2.35% and 10.92±0.63, respectively. Most of pigment impurities were successfully removed from PSTS solutions after treated by D941 resin, and there was no significant difference in carbohydrate concentration, characteristic groups and molecular weight. Compared with H2O2 oxidation and activated carbon adsorption, this developed method is superior.
Key laboratory for medicinal exploitation of Huai'an regional resource, College of Chemical Engineering, Huaiyin Institute of Technology, Huaian 223003, Jiangsu, PR China; Jiangsu Provincial Engineering Laboratory for Salt Chemical Novel Materials, Huaiyin Institute of Technology, Huaian 223003, Jiangsu, PR China.
Yingying
Y
Shi
Affiliated Huaian Hospital of Xuzhou Medical University, Huaian 223002, Jiangsu, PR China.
Tingting
T
Liu
School of Integrated Chinese and Western Medicine, Binzhou Medical University, Yantai 264003, Shandong, PR China.
Yun
Y
Han
Key laboratory for medicinal exploitation of Huai'an regional resource, College of Chemical Engineering, Huaiyin Institute of Technology, Huaian 223003, Jiangsu, PR China.
Xiufang
X
Zhu
Key laboratory for medicinal exploitation of Huai'an regional resource, College of Chemical Engineering, Huaiyin Institute of Technology, Huaian 223003, Jiangsu, PR China.
Xiaojuan
X
Zhao
Key laboratory for medicinal exploitation of Huai'an regional resource, College of Chemical Engineering, Huaiyin Institute of Technology, Huaian 223003, Jiangsu, PR China.
Xijun
X
Ma
Key laboratory for medicinal exploitation of Huai'an regional resource, College of Chemical Engineering, Huaiyin Institute of Technology, Huaian 223003, Jiangsu, PR China.
Dingyun
D
Jiang
Key laboratory for medicinal exploitation of Huai'an regional resource, College of Chemical Engineering, Huaiyin Institute of Technology, Huaian 223003, Jiangsu, PR China. Electronic address: qianghuazhang1234@gmail.com.
Qianghua
Q
Zhang
D000327:Adsorption; D000837:Anion Exchange Resins / Q000737:chemistry*; D029582:Meliaceae; D010860:Pigments, Biological / Q000032:analysis*; D010936:Plant Extracts / Q000032:analysis*; D011134:Polysaccharides / Q000032:analysis*; D036226:Seedlings / Q000737:chemistry*
D000837:Anion Exchange Resins; D010860:Pigments, Biological; D010936:Plant Extracts; D011134:Polysaccharides
Anion exchange macroporous resin; Decoloration; Polysaccharides; Sprouts of Toona sinensis (A. Juss.) Roem