What is Cellulase?
When we eat plants, we take in a large amount of plant cells surrounded by a fibrous complex called a cell wall. A major component of this cell wall is cellulose. Humans do not manufacture the cellulase enzyme we need to digest this type of fiber and must rely on fermentation by the flora in the large intestine.
This process allows us to break down a small portion of these plant fibers, but the rest act as bulking agents that are eliminated in the stool. Of course some creatures are much more efficient than we are at this type of cellulose digestion: the cow, for example, has a ruminary stomach that is divided into four chambers and can hold massive amounts of cellulose-digesting microbes to break down the grass and hay that make up such a large part of its diet. This is why they can get big and strong from eating grass.
Similarly, if we eat lots of juicy, healthy greens, sprouts and herbs, we want to make sure that we can digest them by having enough cellulase available. It would be a shame to waste the money we spend on fresh fruits and veggies.
Cellulase is produced naturally by different symbiotic fungi, protozoa, and bacteria that have the ability to catalyse cellulolysis (the breakdown of cellulose). In reality there are different types of cellulases whose activity is pH-dependent: some are more active in an alkaline environment while others are more active in an acidic or neutral one.














