Ultrahigh pressure extraction of polysaccharide from Morinda officinalis and effect on the polysaccharide structure
Sinan Zhang, Weining Yi, Zihan Wang, Chao Fu, Xiaoping Fan, Bing Du, Lina Cheng, Wangwang Lu, Zhuo Jiang
Abstract
In this study, we employed ultrahigh pressure extraction on polysaccharides from Morinda officinalis and evaluated its antioxidant activity. Other two extraction ways as supercritical assisted ultrasonic extraction (SCUE) and thermal reflux extraction were chosen as comparisons. Response surface analysis was used to optimize the Ultrahigh pressure extraction process, and the extraction rate and antioxidant activity of polysaccharides in vitro were also discussed. The results showed that the extraction rate of polysaccharides was significantly superior to the other two methods. Finally, we studied the effect of ultrahigh pressure on the microstructure of Morinda officinalis polysaccharides by infrared spectroscopy.