Negative-ion LTQ-MS analysis of the fragments generated from agaro-oligosaccharide (AO) degradation by <i>B. uniformis</i> L8 at 48 hours.

G, β-1,3-D-galactose; A, α-1,4-L-3,6-anhydro-galactose.G指代β-1,3-D-半乳糖（β-1,3-D-galactose）；A指代α-1,4-L-3,6-脱水半乳糖（α-1,4-L-3,6-anhydro-galactose）。