fermentation of ginsenoside rb(1) with "a. strictum" yields three new compounds — 12β-hydroxydammar-3-one-20 (s)-o-β-d-glucopyranoside, 12β, 25-dihydroxydammar-(e)-20(22)-ene-3-o-β-d -glucopyranosyl-(1→2)-β-d -glucopyranoside, and 12β, 20 (r), 25-trihydroxydammar-3-o-β-d -glucopyranosyl-(1→2)-β-d -glucopyranoside — as well as five known compounds — ginsenoside rd, gypenoside xvii, ginsenoside rg, ginsenoside f, and compound k. many of these compounds are metabolites of ginsenoside rb(1) in mammals, suggesting that fermentation of ginsenoside rb(1) in "a. strictum" may be similar to mammalian metabolism and may be a useful agent for generating specific metabolites or related ginsenoside analogs, which can be later isolated for structural elucidation and use in pharmaceutical research.