The acidic polysaccharide content in extracts fermented by B. subtilis KFRI 1127 (8.74 mg/g) was higher compared with that in extracts fermented by B. subtilis KFRI 1124 (5.72 mg/g), P. pentosaceus LY 011 (5.05 mg/g), and L. gasseri KCTC 3162 (5.08 mg/g). These results suggest that acidic polysaccharides become soluble during heat treatments such
as steaming, and they have been reported to occur in generally higher content in steam-treated red ginseng compared to fresh ginseng and white ginseng [23].