Rice according to its grain shape and grain quality is divided into three categories: the first category: indica rice grain, that is, indica-type non-glutinous rice. According to the grain quality and harvest season is divided into early indica rice and late indica rice; the second category: japonica rice, that is, japonica type non-glutinous rice. According to the grain quality and harvesting season is divided into early Japonica rice and late Japonica rice; the third category: glutinous rice, according to its grain shape and grain quality is divided into indica glutinous rice and Japonica glutinous rice two categories. Brown rice can be obtained after the rice huller removes the husk.

Nutritional analysis

1. brown rice on obesity and gastrointestinal dysfunction of patients with good therapeutic effect, can effectively regulate the body's metabolism, endocrine abnormalities, etc.;

2. brown rice can treat anemia;

3. brown rice can cure constipation, purify the blood, and thus have to strengthen the role of the physical condition;

4. the germ of vitamin E can promote blood circulation, effective maintenance of the body. E can promote blood circulation, effective maintenance of the whole body

function;

5. brown rice can make the cell function to normal, to maintain the balance of the endocrine system;

6. brown rice has the connecting and decomposition of pesticides and other radioactive substances, which effectively prevents the absorption of harmful substances in the body, and to achieve the role of cancer prevention. [1]

It is well known that the nutrition of brown rice is mainly in the embryo and the dextrin layer, so the embryo and the dextrin layer are recognized by all the nutritionists in the world as the heavenly nutrients for human beings. As for the pericarp, seed coat, pearl layer of the three protective skin layer inside the nutrition is not a lot, and rice husk inside the nutrition is not conducive to human absorption, and because of pesticide residues particularly high factors, more unfavorable to human consumption, so nowadays brown rice is not conducive to human nutrition are as follows:

One, because the brown rice to retain the outer layer (pericarp, seed coat, pearl protective layer) protective tissues, their pesticide content Will be much higher than refined rice, or even hundreds of times, so much so that there are so-called organic brown rice produced, emphasizing the planting process to eliminate the use of pesticides. However, the farmyard fertilizer used will also have a certain amount of soga residue, and the flow of water and air will inevitably have a trace of chemical residue. Such as arsenic, cadmium, mercury, lead and other heavy metal pesticides in organic food, green food standards must have a limited residue indicators, arsenic organic, green standard rice our national limit is 0.4 Mg/kg, lead is 0.2 Mg/kg, cadmium is 0.1 Mg/kg, mercury is 0.01 Mg/kg and so on dozens of indexes, these pesticide residue content, brown rice to be dozens of times higher than the rice, or even hundreds of times. The content of these pesticide residues, brown rice is tens of times higher than refined rice, and even hundreds of times, so the consumption of brown rice food on human health also has a great deal of unfavorable factors. For example: Wuchang, Heilongjiang Province, an organic food production of rice, its brown rice cadmium content of 0.28 Mg/kg, while its refined rice content of 0.0051 Mg/kg, a difference of 54 times more.

Two, the rind of the organization contains many chelating compounds with a strong role of phytic acid. Phytic acid and minerals combine to become phytate, phytic acid will hinder the absorption of minerals.

Third, the seed coat contains a lot of wax fat and coloring, which can be detrimental to human health.

In summary, the three factors, brown rice food is not as good as the retention of the embryo and paste powder layer of the do not pan rice products more favorable to human health.