Surprisingly, the answer can be the same enzyme. Endo-beta-1,4-mannanase is a microscopic molecular cutting tool. Its target is mannan—a family of long carbohydrate chains found throughout the plant world.
Guar gum contains galactomannan. Konjac is rich in glucomannan. And many plant cell walls contain related mannan polymers. These long chains can make materials thick, sticky or difficult to break down. Mannanase cuts them from the inside.
Global Chemical Database