中国食品添加剂Issue(3)：91-98,8.
超声-微波协同提取昆仑雪菊色素工艺及其抗氧化活性研究
Optimization of ultrasonic-microwave synergistic extraction of pigment from Kunlun Coreopsis tinctoria and its antioxidant activity
摘要
Abstract
Based on the single factor experiment,pigment from Coreopsist tinctoria groun in Kunlun,Xinjiang was extracted by ultrasonic-microwave synergistic method.The experiment was designed by response surface method and E value of snow chrysanthemum was selected as the response value.The extraction temperature,extraction time and solid-liquid ratio were 3 factors which influenced extraction process.The scavenging capacity of Coreopsis tinctoria pigment solution was measured by DPPH,hydroxyl radical and superoxide radical.The results showed that the best conditions for extraction of pigment were:extraction time 20min,extraction temperature 44℃,solid-liquid ratio 1∶21,ethanol concentration 50％,microwave power 120W.The E value of the extracted pigment was 54.72 under this condition.After the repeated verification from actual test,the average value of E was 53.7,the relative error was 3.14％ and the predicted value was close to the average.The pigment from Coreopsis tinctoria showed significant scavenging effects on DPPH ·,· OH and O2 ·.The pigment from Coreopsis tinctoria with excellent antioxidant has the potential to be further developed and utilized as a natural andoxidant.关键词
超声微波协同提取/雪菊色素/E/响应面/抗氧化Key words
ultrasonic-microwave synergistic extraction/the pigment of Coreopsis tinctoria/E/response surface methodology/antioxidant activity分类
轻工纺织引用本文复制引用
许丹丹,陈安新,丁慧玲,张红玉,金天佑,王亮,艾合买提江·艾海提..超声-微波协同提取昆仑雪菊色素工艺及其抗氧化活性研究[J].中国食品添加剂,2017,(3):91-98,8.基金项目
自治区科技兴新项目(2016008B08). （2016008B08）
