Figure 2.
Structures and ESI(+)-QToF/MS characteristics of new succinyl-glucosides (m/z 517 [M + H]+) and phosphorylated conjugates (m/z 335 [M + H]+) based on daidzein (m/z 255 [M + H]+) generated from soybean seeds fermented (after 60 h) with B. subtilis AFY-2. (a) D4′(4″S)G, daidzein 4′-O-(4″-O-succinyl)glucoside; (b) D4′(6″S)G, daidzein 4′-O-(6″-O-succinyl)glucoside; (c) D7(4″S)G, daidzein 7-O-(4″-O-succinyl)glucoside; (d) D7(6″S)G, daidzein 7-O-(6″-O-succinyl)glucoside; (e) D7P, daidzein 7-O-phosphate; (f) D4′P, daidzein 4′-O-phosphate.
