Characterization and Antioxidant Activity of Released Exopolysaccharide from Potential Probiotic LM187.

A released exopolysaccharide (rEPS)-producing strain (LM187) with good acid resistance, bile salt resistance, and cholesterol-lowering properties was isolated from Sichuan paocai and identified as subsp. mesenteroides. The purified rEPS, designated as rEPS414, had a uniform molecular weight of 7.