摘要
以银杏落叶为原料,采用超声波辅助水提醇沉的方法提取银杏落叶中的多糖,通过单因素试验和响应曲面法对银杏落叶中多糖提取的工艺进行初探。结果表明:最佳提取工艺条件为5.0 g银杏落叶粗粉,超声波功率600 W,液料比40∶1(mL∶g),提取温度84℃,提取时间50 min,多糖提取得率6.61%。由于本研究只是对银杏落叶中多糖提取工艺的初步研究,因此选择提取的液料比时未深入考虑"少量多次,总液比尽量少"的提取原则。
Polysaccharide was extracted from Ginkgo biloba fallen leaves by ultrasound-assisted water extraction and alcohol precipitation. The extraction technology was preliminarily studied by single factor and response surface method. The results showed that the optimum extraction conditions were as follows： G. biloba fallen leaves 5. 0 g,ultrasound power 600 W,liquid/solid ratio 40 ∶ 1（ m L ∶ g）,extraction temperature 84 ℃,extraction time 50 min,the final polysaccharide yield was 6. 61 %.Because this study was only a preliminary study on the extraction process of polysaccharides from the leaves of Ginkgo biloba,the extraction principle of ＂small amount of times and total liquid ratio is less＂was not considered.
出处
《生物质化学工程》
CAS
北大核心
2017年第6期43-47,共5页
Biomass Chemical Engineering
基金
活性物质生物技术教育部工程研究中心开放基金项目(20150408
AS201607)
大学生创新创业训练计划项目(201510637085)
重庆高校创新团队项目(CXTDX201601018)
关键词
银杏落叶
多糖
超声波提取
响应曲面法
Ginkgo biloba fallen leaves
polysaccharide
ultrasonic extraction
response surface method
