Abstract
The enzyme beta-D-galactosidase, also called lactase, catalyzes the hydrolysis of milk sugar (lactose), which is not absorbed directly into the bloodstream, releasing D-galactose and D-glucose. Low levels of this enzyme in the small intestine produce lactose intolerance, a condition that affects approximately 65% of people at some level, causing colic, bloating, diarrhea, among other comp…