超声辅助法提取分离大豆皂苷的实验研究

Ultrasound-assisted extraction of soybean saponins from waste residue of the soybeans

以大豆废渣为原料,大豆皂苷产率为评价指标,采用索氏提取法、超声波法、超声波与有机溶剂联合提取法进行了提取分离大豆皂苷的实验研究。实验考察了超声功率、时间、温度、料液比对大豆皂苷产率的影响,并在单因素考察基础上,通过正交实验设计得出优化工艺条件。结果表明,超声法可提高皂苷的提取率和节省提取时间,具有节能、提取快速、提取率高的特点,对大豆皂苷的抗氧化活性无显著影响。

The saponins from waste residue of the soybeans were extracted by soxhlet method, ultrasound wave and ultrasound-assisted solvent extraction, using yield as the index. The influencing factors like power of ultrasound wave, extraction time, temperature, the sample to solvent ratio etc were researched. The results show that the ultrasound wave technology can not only shorten time, but also increase the yield and save energy compared with the soxhelt extraction.