Brown Rice
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Brown Rice
Brown rice
Brownrice.jpg
Chinese name
Chinese
Literal meaning rough rice
Vietnamese name
Vietnamese alphabet g?o l?t
Thai name
Thai
Korean name
Hangul
Hanja
Japanese name
Kanji
Filipino name
Tagalog pináwa
Nepali name
Nepali ?

Brown rice is whole grain rice, with the inedible outer hull removed; white rice is the same grain with the hull, bran layer and cereal germ removed. Red rice, gold rice, and black rice (sometimes known as purple rice) are all whole rices, but with a differently-pigmented outer layer.

African rice in its inedible husk (seed rice, will sprout)
The same rice, dehusked (whole brown rice) (colour varies by variety)
The same rice, with almost all bran and germ removed to make white rice

Any type of rice may be eaten whole. Whole rice has a mild, nutty flavour, and is chewier.

Rice plants accumulate arsenic, and there have been concerns over excessive arsenic levels in rice. There is more arsenic in the bran, so brown rice contains more arsenic. The European Union has introduced regulations on arsenic in rice,[1] but the United States has not.[2]

Nutritional content

Brown rice and white rice have similar amounts of calories and carbohydrates. White rice, unlike brown rice, has the bran and germ removed; and has different nutritional content. Brown rice is a whole grain and a good source of magnesium, phosphorus, selenium, thiamine, niacin, vitamin B6, and manganese, and is high in fiber.[3]

When only the outermost layer of a grain of rice (the husk) is removed, brown rice is produced. To produce white rice, the next layers underneath the husk (the bran layer and the germ) are removed, leaving mostly the starchy endosperm.

Several vitamins and dietary minerals are lost in this removal and the subsequent polishing process. A part of these missing nutrients, such as vitamins B1 and B3, and iron are sometimes added back into the white rice. In the US the result is called "enriched rice", and must comply with Food and Drug Administration (FDA) regulations for this name to be used.[4]

One mineral not added back into white rice is magnesium; one cup (195 g) of cooked long grain brown rice contains 84 mg of magnesium, while one cup of white rice contains 19 mg.

When the bran layer is removed to make white rice, the oil in the bran is also removed.

Among other nutrients lost are dietary fiber and small amounts of fatty acids.

It has been found that germinated grains in general have nutritional advantages. Germinated brown rice (GBR), developed during the International Year of Rice, is brown rice that has been soaked for 4-20 hours in warm 40 °C (104 °F) water before cooking. This stimulates germination, which activates various enzymes in the rice, giving rise to a more complete amino acid profile, including GABA.[5] Cooked brown rice tends to be chewy; cooked GBR is softer, and preferred particularly by children.

Cooking time

Brown rice generally needs longer cooking times than white rice, unless it is broken or flourblasted (which perforates the bran without removing it).[6]

Modifications

Parboiled brown rice

Parboiled rice is a modified process that forces into the kernel some of the vitamins found in the hull before the hull is removed. The process provides more nutrition than white rice while shortening the time necessary for final meal preparation.

Some white rices are also fortified.

Storage

Brown rice has a shelf life of approximately 6 months,[7] but hermetic storage, refrigeration or freezing can significantly extend its lifetime. Freezing, even periodically, can also help control infestations of Indian meal moths.

Arsenic

Rice accumulates arsenic. Natural arsenic levels in groundwater and soils vary. Rice grown in some regions contains less arsenic than others. Arsenic from pesticides and poultry fertilizer may be taken up by rice.[8][9][10][11]

A 2012 report from the US publication Consumer Reports found measurable levels of arsenic in nearly all of the sixty varieties of rice and rice products it tested in the US.[12] Consumer Reports states that brown rice has 80 percent more inorganic arsenic on average than white rice of the same type, because the arsenic tends to accumulate in the outer layers of the grain. Its 2013 analysis found that rice cereal and pasta can possess significantly more inorganic arsenic than the 2012 data showed. Consumer Reports said just one serving of rice cereal or pasta could place children over the maximum amount of rice it recommended for their weekly allotment, due to arsenic content.[9] One study published in the Proceedings of the National Academy of Sciences (US) journal found a median level of arsenic that was 56% higher in the urine of women who had eaten rice.[13]

See also

References

  1. ^ Agency, Food Standards. "Arsenic in rice - Food Standards Agency". 
  2. ^ Nutrition, Center for Food Safety and Applied. "Metals - Arsenic in Rice and Rice Products". 
  3. ^ "nutrient profile". live science. 
  4. ^ "Enriched rice". US Food and Drug Administration. Retrieved . 
  5. ^ Ito, Shoichi & Ishikawa, Yukihiro (2004-02-12). "Marketing of Value-Added Rice Products in Japan: Germinated Brown Rice and Rice Bread". Retrieved 2016. 
  6. ^ "USDA ARS Online Magazine Vol. 50, No. 5". 
  7. ^ "Storage". Usarice.com. Retrieved . 
  8. ^ Ware, Lauren (2012-03-14). "Dartmouth Medicine -- Research raises concerns about arsenic in rice". Retrieved . 
  9. ^ a b Consumer Reports (2014-01-11). "How much arsenic is in your rice?". Retrieved . 
  10. ^ Sohn, Emily (2014-10-20). "Contamination: The toxic side of rice". Nature. 514 (7524): S62-S63. doi:10.1038/514S62a. Retrieved . 
  11. ^ Yandell, Kate (2014-10-04). "How Rice Overcomes Arsenic". Retrieved . 
  12. ^ Consumer Reports (2012-11-11). "Arsenic In Your Food". Retrieved . 
  13. ^ Spivey, Angela (2012-01-11). "NIH: Studies find arsenic in food adds up". Retrieved . 

External links


  This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.

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