Optimized Ultrasound-assisted Extraction of Proacyanidins from Purple Cabbage  

超声辅助提取紫甘蓝中原花青素工艺的优化(英文)

作　　者：栾娜[1] 刘行[1] 

机构地区：[1]北京联合大学应用文理学院,北京100191

出　　处：《Agricultural Science & Technology》2013年第3期512-515,519,共5页农业科学与技术（英文版）

基　　金：Supported by Science and Technology Project of Beijing Education Commission (KM200811417002)~~

摘　　要：[Objective] The paper was to optimize ultrasound-assisted extraction of proacyanidins from purple cabbage. [Method] The ultrasound-assisted extraction technology was used to study the extraction of proacyanidins from purple cabbage. The effect of ethanol concentration, temperature, time, material-solution ratio and the power of ultrasound on extracting efficiency were studied by single-factor experiment. Based on this, L16（4%orthogonal test were conducted to determine the optimal condi- tion for extraction of proacyanidins from purple cabbage. [Result] The optimal condi- tion for extraction of proacyanidins from purple cabbage was as follows： ethanol concentration 50%, extraction temperature 50℃, extraction time 1 h, extraction power 540 W, material-liquid ratio 1：20. The extraction rate of procyanidins under this condition reached 104.8 mg/g. [Conclusion] The study provided a theoretical basis for scientific and reasonable utilization of procyanidins in purple cabbage.[目的]优化超声辅助提取紫甘蓝中原花青素工艺。[方法]采用超声辅助提取技术对紫甘蓝中的原花青素的提取工艺进行研究。通过单因素试验研究了乙醇浓度、温度、时间、料液比和超声功率对原花青素提取率的影响,并在单因素试验的基础上,采用L16(45)正交试验确定了超声提取紫甘蓝中原花青素的最佳工艺条件。[结果]超声提取紫甘蓝中原花青素的最佳工艺条件为乙醇浓度50%、料液比1∶20、提取温度50℃、提取时间1h、超声功率540W。在此条件下,原花青素的提取率为104.8mg/g。[结论]该研究为为科学合理开发利用紫甘蓝提供理论依据。

关 键 词：Purple cabbage Proacyanidins ULTRASOUND EXTRACTION 

分 类 号：TQ914.1[化学工程]