Medicinal Plant

2010, v.1(10) 85-87

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Optimization of Decoloration Process of PERICARPIUM CITRI RETICULATAE Polysaccharide
Optimization of Decoloration Process of PERICARPIUM CITRI RETICULATAE Polysaccharide

摘要(Abstract):

[Objective] To optimize the decoloration conditions of PERICARPIUM CITRI RETICULATAE polysaccharide.[Method] The polysaccharide was extracted from PERICARPIUM CITRI RETICULATAE with hot water.The decoloration effects of ion exchange resins(D-201,DH-8) and macroporous resins(D-101,HPD-400,HPD-600) on tangerine peel polysaccharide were studied.And the optimum decoloration conditions of PERICARPIUM CITRI RETICULATAE polysaccharide were determined by orthogonal test.[Result] The decoloration effect of anion exchange resin was better than that of cation exchange resin and the macroporous resins.The influencing order on the decoloration rate of PERICARPIUM CITRI RETICULATAE polysaccharide was:resin dosage> rotation speed> temperature.The optimum conditions for decoloring tangerine peel polysaccharides were as follows:D-201 anion exchange resin(8:100 W/V),rotation speed of 75 r/min and 2 h treatment in 40 ℃ water bath.Under this condition,the decoloration rate and sugar retention rate were 62.3% and 37.8% respectively.[Conclusion] The study has provided scientific basis for the production of high-quality PERICARPIUM CITRI RETICULATAE polysaccharide.

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