Study on the Effect of Sulfur Fumigation on the Content of Codonopsis pilosula Alkyne Glycosides and Sulfur Dioxide
Objective:The effects of sulfur fumigation on sulfur dioxide residue and alkyne glycosides content of Codonopsis pilosula are studied,in order to provide a reference for the scientific and reasonable evaluation of the quality of Codonopsis pilosula.Methods:208 batches of Codonopsis pilosula are used as research objects,and the effects of sulfur fumigation on the content of sulfur dioxide and alkyne glycosides are studied using acid-base titration and high-performance liquid chromatography,respectively.Meanwhile,by simulating sulfur fumigation,the effect of sulfur fumigation time on the content of alkyne glycosides is explored.Results:The results show that the unqualified rate of sulfur dioxide content reached 7.21%,and the proportion of sample batches with sulfur dioxide content exceeding 600 mg/kg reached 5.77%.In addition,the sulfur fumigation time is prolonged,and the content of Codonopsis pilosula alkyne glycosides significantly decreased,with an average value decreasing from 0.213 6 mg/g to 0.128 5 mg/g.Conclusion:The prolonged sulfur fumigation time leads to an increase in sulfur dioxide content and a decrease in alkyne glycoside content in Codonopsis pilosula.Therefore,in order to ensure the quality of market Codonopsis pilosula,while controlling the residual sulfur dioxide in Codonopsis pilosula,it is also necessary to strengthen the control of the content of alkyne glycosides.
NETL
NSTL
万方数据
维普
