WU Si, QIU Ting, CHEN Peng, et al. Methods Comparative of Removal of Protein for Polysaccharide from Liuwei Dihuang Biological Preparation[J]. Chinese journal of experimental traditional medical formulae, 2012, 18(4): 56-59.
WU Si, QIU Ting, CHEN Peng, et al. Methods Comparative of Removal of Protein for Polysaccharide from Liuwei Dihuang Biological Preparation[J]. Chinese journal of experimental traditional medical formulae, 2012, 18(4): 56-59. DOI: 10.13422/j.cnki.syfjx.2012.04.026.
Objective:To comparative study on removal method of protein for polysaccharide from Liuwei Dihuang biological preparation
and investigate effect on yield and purity of polysaccharide by different methods.Method:Sevage method
TCA-butanol precipitation method and tannin acid precipitation method were taken to deproteinized of Liuwei Dihuang biological preparation
and compared effect of three deproteinization methods by deproteinization rate and polysaccharides retention rate.Result:Deproteinizationhe effect of TCA-butanol precipitation method was the best
optimum conditions were:volume ratio of TCA-butanol reagent was 1∶2
ratio of TCA-butanol reagents was 1∶5
vibration time was 30 min
standing for 1.0 h
which showed highest efficient of deproteinization for polysaccharides and higher polysaccharides retention rate.Conclusion:TCA-butanol method was optimum technology of removing protein from Liuwei Dihuang biological preparation.