摘要
目的研究水提紫甘薯色素废渣总黄酮的提取工艺,旨在为紫甘薯废渣的综合开发利用提供理论基础和参考依据。方法采用溶液浸提法、超声波辅助法、微波萃取法对水提紫甘薯色素废渣中的总黄酮进行提取研究,通过单因素实验和正交实验确定最佳提取方法及工艺条件。结果水提紫甘薯色素废渣总黄酮最佳提取方法为微波萃取法,其最佳提取工艺:乙醇体积分数70%,提取时间4 min,微波功率708 W,料液比1:40。在此条件下累计6次提取结果得水提紫甘薯色素废渣中总黄酮含量为3.83 g±0.03 g/100 g。最佳提取次数为2次。结论水提紫甘薯色素废渣黄酮类物质含量较高,具有较大的开发利用价值。
Objective To research the extraction process of the total flavonoids from residue of water-extracting pigment of Ipamoea batatas L., which could provide the theoretical basis and reference for the comprehensive development and utilization of residue of water-extracting pigment of Ipamoea batatas L.. Methods Traditional solution method, ultrasonic-assisted method and microwave-assisted method were adopted to extract total flavonoids from residue of water-extracting pigment of Ipamoea batatas L.. The best extraction method and process conditions were determined by single factor experiment and orthogonal experiment. Results Microwave-assisted extraction was confirmed as the optimum method for extracting total flavonoids from residue of water-extracting pigment of Ipamoea batatas L.. The optimum extraction process was extracted for 4 min at microwave power 708 W by the ratio of material to liquid 1:40 with the 70%volume fraction of ethanol. Total flavonoids was extracted on this condition by 6 times, and the content of total flavonoids in residue of water-extracting pigment of Ipamoea batatas L. was 3.83 g±0.03 g/100 g. The best extraction times is 2 times. Conclusion The content of flavonoids in residue of water-extracting pigment of Ipamoea batatas L. is higher and residue of water-extracting pigment of Ipamoea batatas L. has greater utilization value.
出处
《食品安全质量检测学报》
CAS
2014年第9期2796-2806,共11页
Journal of Food Safety and Quality
基金
云南省科技计划项目(2008ZC107M)
云南公共卫生与疾病防控协同创新中心项目(2014YNPHXT07)~~
关键词
水提紫甘薯色素废渣
黄酮
提取
工艺
residue of water-extracting pigment of Ipamoea batatas L.
flavonoids
extraction
process
