YAN Jing, XIA Bo-hou, ZHANG Ying, et al. Optimization of Deproteinization Technology of Total Polysaccharides from Dendrobii Officinalis Caulis by Response Surface Methodology[J]. Chinese journal of experimental traditional medical formulae, 2016, 22(17): 19-22.
YAN Jing, XIA Bo-hou, ZHANG Ying, et al. Optimization of Deproteinization Technology of Total Polysaccharides from Dendrobii Officinalis Caulis by Response Surface Methodology[J]. Chinese journal of experimental traditional medical formulae, 2016, 22(17): 19-22. DOI: 10.13422/j.cnki.syfjx.2016170019.
Objective: To optimize deproteinization technology of Dendrobii Officinalis Caulis.Method: With retention rate of total polysaccharides and deproteinized rate as the indexes
single factor tests were adopted to compare Sevage method
papain enzymatic
trypsin method and trypsin combined Sevage method.Effects of enzymolysis time
enzyme dosage
enzymolysis temperature and volume ratio of coarse polysaccharide solution to Sevage reagent on deproteinization technology was optimized by response surface method. Result: Trypsin combined Sevage method had higher retention rate of total polysaccharides and deproteinized rate;optimum deproteinization technology was as follows:enzymolysis time of 1.5 h
enzyme dosage of 0.21 g · mL-1
enzymolysis temperature at 63.25℃
coarse polysaccharide solution-Sevage reagent (4.27:1).Under these conditions
deproteinized rate and retention rate of total polysaccharides were (87.15±7.93)% and (81.32±8.54)%. Conclusion: Effect on total polysaccharides from Dendrobii Officinalis Caulis has significant difference with different deproteinized method
Trypsin combined Sevage method has optimum deproteinized effect.