Study on Microwave Extraction Technology of Betaine from Lycium barbarum Leaves

The optimum microwave extraction technology of betaine from Lycium barbarum leaves was studied and the impacts of every technology parameter on extraction rate of betaine were investigated.Extraction rate of betaine was taken as index.L9(34) orthogonal design and analysis of variance were adopted to optimize the technological conditions of microwave extraction of betaine.The results showed that the rate of solid and liquid,extraction time and microwave power were 1:10(g:ml),20min,200w,respectively,and the average of betaine extraction rate was up to 4.48%.The technology was simple,stable and feasible.