ZHANG Li-ming1, ZHU Li1, LI Xue1, et al. Optimization of Water-extracting and Alcohol-precipitating Conditions of Total Polysaccharides of Yupingfeng[J]. Chinese journal of experimental traditional medical formulae, 2011, 17(1): 24-26.
ZHANG Li-ming1, ZHU Li1, LI Xue1, et al. Optimization of Water-extracting and Alcohol-precipitating Conditions of Total Polysaccharides of Yupingfeng[J]. Chinese journal of experimental traditional medical formulae, 2011, 17(1): 24-26. DOI: 10.13422/j.cnki.syfjx.2011.01.019.
Objective:To seek out the optimal water-extracting and alcohol-precipitating technology of total polysaccharides of Yupingfeng(YTP).Method: Using the yield of YTP as assessment index
three factors were studied by orthogonal design
including ratio of material(g) to extracting solvent(mL)
extracting time and ethanol concentration of precipitating polysaccharide.Result: The yield of YTP was 4.31% by the optimum process conditions listed as follows: ratio of material to extracting solvent was 1∶ 12
extracting time when the temperature was kept at 90 ℃ as 1.5 h;and the volume fraction of ethanol was 90%.Conclusion: These extraction process is feasible
and the experiment result can provide basic and instruction data for the ascertainment of water extraction technology of YTP.