I摘要以烘干茄子根为原料，以茄子根总黄酮提取率为指标，利用超声提取茄子根中总黄酮。选取乙醇浓度、超声时间、超声温度、超声功率、液料比为单因素试验，在单因素实验基础上，以响应面实验设计法确定茄子根总黄酮超声提取的最佳工艺条件。结果表明，最佳工艺条件为：乙醇浓度为68%、超声时间为25min、超声温度52℃超声功率150w液料比21:1（g/ml）,在此最佳条件下，茄子根总黄酮的提取率达0.836%。关键词：超声波;提取;茄子根;总黄酮;响应面法;IAbstractTheeggplantrootasrawmaterial,alkaloidsinrootofeggplantwithzheultrasonicwaveassistedalcoholprecipitationmethod.Thevolumefractionofethanol、extraction、timeultrasonicwavepower、ultrasonicwavetemperature、solid-liquidratioasthesinglefactortest.Theresultsshowthattheoptimumconditionswere:ethanolconcentrationof68%、extractiontime25min、ultrasonicwavetemperatureis52℃、ultrasonicwavepowerwas150W、theratioofmaterialtoliquid21:1(ml/g),undertheseconditions,theextractionrateoftotalalkaloidsfromeggplantrootis0.836%.Keywordsultrasonicwave-assisted:extraction;eggplantroot;thetotalalkaloidi目录摘要.........................................................................................................................................IAbstract..................................................................................................................................II1绪论......................................................................................................................................11.1项目的目的及意义....................................................................................................11.2国内外研究现状及前景............................................................................................21.2.1国内外研究现状.....................................................................................................21.2.2超声波辅助提取技术.............................................................................................21.3黄酮类化合物.................................................................................
