Scientists in Japan reveal that waste product of rice processing, called rice bran, significantly lowers blood pressure in rats whose hypertension resembles that of humans.
Journal of Agricultural and Food Chemistry, published by the American Chemical Society, the world's largest scientific society holds the nuances of the study.
Tohoku University and Japan's National Research Institute of Brewing researchers' showed that if rice ran is added to diets of hypertensive, stroke-prone rats it lowered the animals' systolic blood pressure by about 20 percent and, via the same mechanism, inhibited angiotensin-1 converting enzyme, or ACE.
"Oxidative stress plays an important role in the initiation and progression of cardiovascular diseases. I think enzymatic treatment will be more suitable for applications if we'd like to use [rice bran as] functional food," explained lead author Ardiansyah, a Ph.D. candidate at the university's School of Agricultural Science.