微波法萃取玉米黄色素的工艺

Study on the Microwave Extraction Technology of Yellow Pigment from Maize Powder

采用微波萃取技术提取玉米黄色素,研究微波控制条件对玉米黄色素提取率的影响,并在单因素试验的基础上进行正交试验。研究结果表明,玉米黄色素的最大吸收波长为448 nm,微波萃取玉米黄色素的最佳工艺条件为以50%乙醇为提取溶剂,微波功率450 W、料液比为1∶12(g∶mL)、微波作用时间80 s、萃取2次。

Microwave technology was used to the extract yellow pigment from maize powder,and the influencing factors of yellow pigment extraction rate was studied through the single factors and orthogonal test.Results showed that the maximum absorbance wavelength of the maize yellow pigment is 448 nm.The optimal microwave conditions were available in yellow pigment extraction of maize powder as follows 50 % ethanol as solvent,microwave power 450 W,ratio of solid-liquid 1∶12（g∶mL）,extraction time 80 s,2 times extraction.