摘要
对香蕉叶中缩合单宁的超声提取工艺进行研究.在单因素实验基础上,采用响应面分析法对超声辅助提取的工艺参数进行优化.结果表明四种因素对香蕉叶中缩合单宁提取量的影响为液料比>超声功率>乙醇浓度>提取时间.最优工艺条件提取时间25 min,乙醇浓度85%,液料比28 mL·g^-1,超声功率50%.预测提取量为7.27 mg·g^-1,实际为7.15 mg·g^-1,预测提取量和实际提取量较为接近,说明响应面法对超声提取香蕉叶缩合单宁的工艺优化较为可靠.
Ultrasonic extraction of condensed tannin from banana leaves was studied.On the basis of the single factor,response surface analysis was used to optimize the process parameters of ultrasound-assisted extraction.Resulting:the influence of four factors on the extraction amount of condensed tannin in banana leaves was as follows:extraction time of liquid to material ratio>ultrasonic power>ethanol concentration>extracting time.The results showed that the optimum conditions of the extraction from banana leaves were as follow:extraction time(25min),ethanol concentration(85%),liquid–solid ratio(28 mL·g^-1),ultrasonic power(50%).The predicted extraction capacity was7.27 mg·g^-1,the actual extraction capacity was 7.15 mg·g^-1.The predicted extraction capacity was consisting with and actual capacity,indicating that the response surface method is reliable for ultrasonic extraction process of condensed tannins from banana leaves.
作者
赖晓琳
张刚
黄建军
LAI Xiaolin;ZHANG Gang;HUANG Jianjun(Department of Pharmacy, Zhangzhou Health Vocational College, Zhangzhou 363000)
出处
《绵阳师范学院学报》
2020年第5期24-30,共7页
Journal of Mianyang Teachers' College
基金
2018年福建省中青年教师教育科研项目(JZ180838)
漳州卫生职业学院科研项目(ZWYZ201801).
关键词
香蕉叶
缩合单宁
超声提取
响应面
banana leaves
condensed tannins
ultrasonic extraction
response surface