Rice is "light yellow rice", in which only the rough chaff is peeled off and the germ and endothelium are retained. The nutrition of all kinds of cereals is concentrated in germ and endothelium. Germ controls the life of rice, which is equivalent to human brain, while endothelium is equivalent to human skin. Refined white rice lost its mind and epidermis, which led to the invasion of miscellaneous bacteria and swallowed up the nutrition that was not much. Brown rice can resist the invasion of miscellaneous bacteria by relying on its original vitality and nutrients. People often call white rice "dead rice" and brown rice "live rice". Does not mean that coarse bran is peeled or brown rice. Brown rice must be 100% alive. If soaked in water, it must germinate within a week, otherwise it will still be dead rice. So brown rice is also called germinated rice.
Brown rice belongs to caryopsis with smooth and shiny surface. In brown rice, the embryo side of rice is called belly white, and the embryo-free side is called back white. There are five longitudinal grooves on the surface of brown rice grains, one on the back is called back groove, and two on both sides are called rice grooves. It is difficult to completely remove the cortex at the brown rice ditch during rice milling. For the same variety of rice, the more husk left in the furrow, the lower the processing accuracy, so the processing accuracy of rice is often expressed by the degree of husk left on the grain surface and back furrow. Different rice varieties have different longitudinal furrow depth, which has certain influence on rice yield. Some brown rice has opaque white spots in the abdomen or the center of rice grains, which are white in the abdomen or white in the heart. White belly and white heart are caused by the inadaptability of climate, rainfall and fertilizer during rice growth.
Brown rice pericarp includes exocarp, mesocarp, row cells and tubular cells, with a total thickness of about 10 micron. The seed coat is very thin, about 2 microns thick, and the structure is not obvious. Some brown rice seed coats contain pigments and are colored. Endosperm is a thin film-like tissue attached to the seed coat, with a thickness of l-2 microns, which is difficult to distinguish from the seed coat. Endosperm is the largest part of rice grain, including aleurone layer and starch cells. Aleurone layer cells are full of tiny aleurone particles, containing protein, fat and so on. Without starch. Starch cells are filled with starch granules. Embryo is located at the base of the ventral surface of rice, which is oval and consists of embryo, embryonic stem, radicle and peltate. The peltate body is connected with the endosperm. When the seed germinates, it secretes enzymes, decomposes substances in the endosperm and provides nutrition for the embryo.
Rice is the finished product of rice after washing, hulling, milling and finishing. The cleaning process is to use appropriate equipment, appropriate technological process and appropriate operation methods to remove all kinds of impurities mixed in rice, thus improving the quality of finished rice. ? Rice embryos and aleurone layer contain nearly 64% of rice nutrition and more than 90% of essential nutrients for human body, which are relatively balanced. It is the main food of southerners.
The difference between white rice and brown rice
? 1, white rice makes people confused, and brown rice makes people smart. During the processing of white rice, the structure is destroyed, the nutrition is lost and the vitality is lost. White rice becomes inactive after losing vitamin (vitamin B) and is oxidized before being eaten by people, so it is difficult to burn completely in human body. Intermediate metabolites lactic acid and pyroglucuronic acid are formed, leading to blood acidification. Brown rice is a treasure house of vitamin B compounds, which has a high metabolic function and contains detoxification substances, which can neutralize various public hazards, toxic substances and heavy metals harmful to the body and then excrete them. Vitamin E in brown rice can prevent arteriosclerosis and hypertension, and its calcium content is twice that of white rice, which is conducive to calming the nerves and purifying the blood, making the blood more alkaline.
? 2, even with non-staple food assistance, white rice is not nutritious, and eating brown rice is still nutritious. As dead rice, white rice removes germ and cellulose, which makes most nutrients lose and brings various harmful side effects to people. Lack of cellulose can easily cause constipation, lack of vitamin B 1 can induce liver disease, and lack of calcium and iron can cause dysplasia. Brown rice contains a lot of effective components of germ and endodermis, and only half the amount of white rice can make the stomach feel full. Because there is no supplementary food, the chemicals entering the body naturally decrease, and brown rice is recognized as a necessary food in the era of public hazards.
? 3. White rice dulls the brain, but brown rice can strengthen the brain. Among the factors that adversely affect brain function, the most important one is vitamin B deficiency. Once phosphorus is lacking, judgment and memory will be weakened, and there is almost no phosphorus in white rice. The phosphorus content of brown rice is seven times that of white rice, and there are many B vitamins, which are incomparable to white rice. Eating brown rice nutrients can supplement many ingredients that have direct or indirect effects on the brain. It can also make cell metabolism more active. So as to keep your mind awake forever.
? 4. Relationship with cancer The first cause of cancer is the lack of one of the three B vitamins (namely riboflavin, nicotinic acid and pantothenic acid). After eating white rice, people will form a carcinogen called "Rezocine", and the cumulative harm of this carcinogen to people who eat white rice every day can be imagined. Brown rice is an anticancer food. Brown rice is a treasure house of vitamin B compounds, which is beneficial to prevent cancer. Germ contains a large number of special anticancer substances and vitamin K, which is almost absent in white rice, so it can also treat cancer.