抄録
Green tea contains catechins, dietary fiber, and many other ingredients with health benefits. Sencha (green tea) contains watersoluble
components, such as catechins and amino acids, while matcha contains not only catechins and amino acids, but also waterinsoluble
dietary fiber. In this study, we examined whether the dietary fiber in matcha is involved in inhibiting lipid absorption by
measuring the lipid adsorption rate of matcha, the inhibition of pancreatic lipase activity, and the inhibition of lipid absorption in rats.
The lipid adsorption rate of a 10% matcha suspension was about 25%, whereas the lipid adsorption rate of a 6.4% cellulose
suspension of matcha, which contained the equivalent amount of insoluble dietary fiber, was about 4%.
Furthermore, the effect of matcha or cellulose on lipid digestion and absorption was measured in rats with gastric catheterization
and subclavian vein catheterization. The results showed that matcha had a suppressive effect on lipid digestion and absorption.
These results suggest that the lipid-suppressing effect of matcha is due to the action of catechins and dietary fibers other than
cellulose in matcha, and that cellulose has little effect.
