Structural characterization and prebiotic activity of polysaccharides from Suaeda glauca

Abstract Background Suaeda glauca , an edible halophyte, is rich in bioactive polysaccharides, yet its prebiotic properties remain unclear. Results In this study, using Suaeda glauca as the raw material, a water-soluble polysaccharide fraction J40 with a weight-average molecular weight of 11.55 kDa was obtained through hot water extraction followed by graded ethanol precipitation. J40 is a hybrid pectin composed of HG and RG-I structural regions, supplemented by complex arabinan side chains. In