Properties ◼ Used for fermentation purposes in foods. ◼ Can be immobilized to a surface of a membrane or other inert object in contact with the food being processed. ◼ Can be extracted and purified to a high degree.Properties ◼ Used for fermentation purposes in foods. ◼ Can be immobilized to a surface of a membrane or other inert object in contact with the food being processed. ◼ Can be extracted and purified to a high degree