The extraction technology of bergenin from the leaf of Vatica Mangachpoi Blanco
Objective： To study the best extraction technology of bergenin from the leaf of Vatica mangachpoi Blanco growing in Hainan. Methods： The cold-soaked extraction, ultrasonic extraction and heat reflux extraction techniques were respectively used for extraction of bergenin. The best extraction method of bergenin was determined by its content. The best extraction technology was determined through orthogonal experimental investigation. Results： The cold-soaked extraction was chosed as the best extraction method. The optimized parameters were as follows： the ratio of material and solvent was 1：12, the concentration of alcohol was 65%, the extracting time was 36 h. Conclusion： The yielding content of bergenin was 3.88% at the condition of optimum parameters.
NETL
NSTL
万方数据
维普
