(bā'tă fruk'tō-fūr-ă-nō-sīd'ās) Beta-H-fructosidase; An enzyme hydrolyzing beta-d-fructofuranosides and releasing free d-fructose; if the substrate is sucrose, the product is d-glucose plus d-fructose (invert sugar); invert sugar is more easily digestible than sucrose.