Aim\ Rutin content in tartary buckwheat was studied. And the effect of the solvent
extact temperature
time and the rate of liquid to solid on rutin yield rate were investigated. Methods\ the comparision of rutin purity prepared by various methods was taken. Results and Conclusion\ The experimental results indcated that optimum conditions are found to be: 60% alcohol as solvent. Extract temperature 60 ℃
L/S amount 30
extracting time about 2 hours. During the whole technological process
the organic component activity of product can be maintained. The yield rate and purity is high.