快速溶剂萃取仪提取葡萄籽中多酚物质的工艺优化

Optimization of extraction technology for polyphenols from grape seeds by accelerated solvent extraction

摘要: 以新品种媚丽葡萄籽为研究对象,采用单因素实验研究了快速溶剂萃取仪提取多酚物质的工艺并进行了正交实验优化。结果表明:最佳提取条件为提取时间20 min、提取温度50℃、提取压强8.97 MPa、乙醇体积分数80%。在此条件下多酚提取量为28.89 mg/g。利用快速溶剂萃取仪提取葡萄籽多酚物质能极大地缩短提取时间。

Abstract: Accelerated solvent extraction(ASE) system was used to optimize polyphenol extraction from seeds of a new grape cultivar “ Meili ” through orthogonal test. The results showed that the optimum extraction conditions were as follows : extraction time 30 min, temperature 50 ℃, pressure 8.97 MPa and ethanol concentration 80%. The yield of extraction was 28.89 mg/g. The ASE method could effectively reduce the operation time.