Since the concentration of non-capsulated LGG was extremely low when it was transferred to the small intestinal simulation, to better understand the effect of pectin and glucose on protease stability of LGG, in a separate experiment, we incubated noncapsulated LGG, LGG with glucose or pectin, and the encapsulated LGG in the simulated small intestine solution, skipping the stage of conditioning in the simulated stomach environment. As shown in Table 2, encapsulation
of LGG in pectin beads protected LGG from protease digestion. The inclusion of glucose in the beads further enhanced the stability of LGG. The addition of glucose or pectin to the cultures of LGG with proteases enhanced the survival of LGG, but the effect of pectin was less than glucose. These data indicates the protective activity of both glucose and pectin for LGG in small intestine tract