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采用正交试验，对苦荞麦茎及籽壳中黄酮类物质（芦丁）的乙醇提取工艺进行了系统研究，优选了工艺参数。结果表明：用20～30倍原料重的65％乙醇溶液，在70～75℃浸提4～6h为最佳条件。
The orthogonal test was used to study the ethanol extraction process of flavonoids (rutin) in the stems and seeds of tartary buckwheat. The process parameters were optimized. The results showed that the optimum conditions were as follows: 20 ~ 30 times raw material 65% ethanol solution was used to extract 4 ~ 6 h at 70 ~ 75 ℃.