Cellulase enzymes hydrolyze cellulose
fibers into smaller fragments ultimately releasing glucose.
The human digestive system does not secrete enzymes capable
of breaking down cellulose, so dietary fiber moves through
the digestive tract essentially intact unless the enzyme,
cellulose, is present in the diet. Cellulase is found
naturally in all raw fruits, vegetables and whole grains but
is missing in those that are cooked or processed. Even if
these raw foods are consumed with cooked or processed
vegetables or grains, there will not be absorbed into the
body. Human and animal studies have provided irrefutable
evidence that enzymes can and are absorbed intact from the
gastrointestinal tract into the blood stream under normal
conditions. Thus, exogenous cellulose can help the body
utilize fiber fragments in the extra-cellular fluids.
Cellulase deficiencies are often overlooked, yet a lack of
cellulose can mean poor digestion of plant foods and less
than optimal absorption of nutrients in the intestines.
Dietary fiber consists of cellulose fibrils cemented
together with a matrix of other substances (soluble fiber)
including hemicelluloses (non-cellulosic polysacchrides),
pectin, lignin and gums. Exogenous cellulose enzymes help
release these beneficial components from dietary fiber. Of
particular interest, pectins tend to bind heavy metals and
organic toxic substances reducing their absorption into the
body. This property can reduce the effects of food allergies
and metal toxicity. In addition, studies have shown that
hemicelluloses increase the bulk, softness and transit time
of stools by increasing their ability to bind water.
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