Most of rice bran is made of rice husk, seed coat, endosperm, aleurone layer and germ, so a small amount of rice husk and a certain amount of dust and microorganisms will be mixed in the processing, so it can only be used as feed and is the main by-product of rice processing.
Extended data
Rice bran is rich in various nutrients and physiologically active substances. Developed countries such as the United States have produced edible rice bran, and similar products have been invented in China, that is, inedible substances (rice husk, pericarp, seed coat, dust, microorganisms, etc. ) In the clean workshop, the beneficial nutrients in rice bran were accurately ground and separated by using modern food processing precision grinding technology.
This separation technology can divide rice bran into feed-grade rice bran and food-grade rice bran, in which the food-grade rice bran accounts for about 80% of the total weight of rice bran and the nutrient content exceeds 90%. Food-grade rice bran is also called "Mi Bao" or "rice flour" because it only accounts for 6% of rice weight and 60% of rice nutrition.
Nutritional function
purify
Slaven and Lampe tried to verify the laxative effect of rice bran and wheat bran on healthy people with normal diet. The results show that rice bran is an effective fiber to increase the volume of feces. The reason may be that the carbohydrates in rice bran do not interact with digestive enzymes in the intestine, so it has the same laxative effect as adding wheat bran.
Lower cholesterol
It is found that rice bran contains many cholesterol-lowering compounds, but the existing data can not clarify the cholesterol-lowering ability of each compound. The main components in rice bran oil, such as monounsaturated fatty acids, linoleic acid, linolenic acid and a small amount of unsaponifiable components, have the function of lowering cholesterol.
Kahlon and Newman found that defatted rice bran was not as effective as whole rice bran in reducing blood lipid after studying rats and chickens. In order to determine the cholesterol-lowering components in rice bran, it is necessary to further study the changes of blood lipids in full-fat and defatted rice bran.
Reduce urinary calculi
The formation of urinary calculi is related to the excretion of calcium in the urinary system. The researchers studied women who ate 1800 micrograms of calcium-rich food every day. Adding rice bran, bean skin and wheat bran to their food can reduce the excretion of calcium by the kidneys and increase the excretion of oxalic acid by the kidneys, but the effect of rice bran is the most obvious.
Reference Baidu Encyclopedia-Rice Bran