摘要
以绞股蓝为原料,采用微波超声双辅助提取皂苷。在单因素试验的基础上,采用响应面分析法优化提取工艺,建立二次多项数学模型。结果表明,绞股蓝皂苷微波超声双辅助提取的最优工艺参数为:微波功率400 W、超声时间60 min、乙醇浓度80%、超声温度为51℃、微波时间117 s、液料比28∶1(m L/g),此条件下绞股蓝皂苷提取率为7.05%,与预测值的相对误差约为0.57%,试验值与预测值相吻合。
The microwave-ultrasonic-assisted extraction of saponins from Gynostemma pentaphyllum was opti-mized using response surface methodology. Base on single-factor experiments, the extraction conditions of mi-crowave-ultrasonic-assisted extraction yield of saponins in the Gynostemma pentaphyllum were by RSM. As a result, a quadratic polynomial mathematical model was built. The optimal extraction conditions of RSM were determined as follows：Gynostemma pentaphyllum were suspended in microwave power of 400 W, subjected to ultrasonic treatment for 60 min at temperature of 51 ℃, 80%ethanol concentration at solvent-to-solid ratio 28∶1 （mL/g） and then microwaves 117 s. The result of verification experiment （7.05%） was coincided with predictive value.
出处
《食品研究与开发》
CAS
北大核心
2016年第12期52-56,共5页
Food Research and Development
基金
福建省教育厅科技项目(JA12218)
福建省教育厅科技项目(JA15310)
关键词
响应面法
微波超声双辅助提取
绞股蓝
皂苷
response surface methodology
microwave-ultrasonic-assisted extraction
Gynostemma pentap-hyllum
saponins
