Quinoa
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| Chenopodium quinoa Willd. |
Quinoa (IPA pronunciation (RP): [kiːnʍɑː]) is a species of goosefoot (Chenopodium) grown as a crop primarily for its edible seeds. It is a pseudocereal rather than a true cereal as it is not a grass. Its leaves are also eaten as a leaf vegetable, much like amaranth, but the commercial availability of quinoa greens is currently limited.
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[edit] Overview
Quinoa originated in the Andean region of South America, where it has been an important food for 6,000 years. Its name is the Spanish spelling of the Quechua name. Quinoa is generally undemanding and altitude-hardy, so it can be easily cultivated in the Andes up to about 4,000 meters. Even so, it grows best in well-drained soils and requires a relatively long growing season. In eastern North America, it is susceptible to a leaf miner that may reduce crop success; this leaf miner also affects the common weed Chenopodium album, but C. album is much more resistant.
Similar Chenopodium species, such as Pitseed Goosefoot (Chenopodium berlandieri) and Fat Hen (Chenopodium album) were grown and domesticated in North America as part of the Eastern Agricultural Complex before maize agriculture became popular. Fat Hen, which has a widespread distribution in the Northern Hemisphere, produces edible seeds and greens much like quinoa, but in lower quantities. Caution should be exercised in collecting this weed, however, because when growing in heavily fertilized agricultural fields it can accumulate dangerously high concentrations of nitrates.
Chenopodiums were also used in Europe as greens.
[edit] History and culture
| Top Quinoa Producers - 2005 (thousand metric ton) | |
|---|---|
 Peru | 27.0 |
 Bolivia | 23.5 |
 Ecuador | 0.7 |
| World Total | 58.4 |
| Source: UN Food & Agriculture Organisation (FAO)Actual figures from FAO | |
The Incas, who held the crop to be sacred, referred to quinoa as "chisaya mama" or "mother of all grains", and it was the Inca emperor who would traditionally sow the first seeds of the season using 'golden implements'. During the European conquest of South America quinoa was scorned by the Spanish colonists as "food for Indians", and even actively suppressed, due to its status within indigenous non-Christian ceremonies. On another religious note, quinoa is considered by some (but not all) Jews to be kosher for Passover[1].
[edit] Nutritional value
Quinoa was of great nutritional importance in pre-Columbian Andean civilizations, being secondary only to the potato, and followed in third place by maize. In contemporary times this crop has come to be highly appreciated for its nutritional value, and the United Nations has classified it as a super crop for its very high protein content (12%–18%). Unlike wheat or rice (which are low in lysine), quinoa contains a balanced set of essential amino acids for humans, making it an unusually complete foodstuff. This means it takes less quinoa protein to meet one's needs than wheat protein. It is a good source of dietary fiber and phosphorus and is high in magnesium and iron. Quinoa is gluten free and considered easy to digest. Because of all these characteristics, quinoa is being considered as a possible crop in NASA's Controlled Ecological Life Support System for long-duration manned spaceflights.[2]
[edit] Saponin content
In its natural state quinoa has a coating of bitter-tasting saponins, making it essentially unpalatable. Most quinoa sold commercially in North America has been processed to remove this coating. Some have speculated that this bitter coating may have caused the Europeans who first encountered quinoa to reject it as a food source, even as they adopted other indigenous products of the Americas like maize and potatoes. However, this bitterness has beneficial effects in terms of cultivation, as it is a crop that is relatively untouched by birds and thus requires minimal protection. There have been attempts made to lower the saponin content of quinoa through selective breeding in order to produce sweeter and more palatable varieties of the crop. However, when these varieties were introduced by agronomists to native growers in the high plateau, they were rejected after just one season. The growers returned to their traditional high saponin varieties, the reason being that despite the newer varieties giving 'magnificent' yields, birds had consumed the entire crop.
The saponin content in quinoa can be mildly toxic, as can be the oxalic acid content found in the leaves of all of the chenopodium family. However, the risks associated with quinoa are minimal provided that it is properly prepared and leaves are not eaten to excess.
[edit] Preparation
Quinoa is an easy food to prepare, has a pleasantly light, fluffy texture when cooked, and its mild, slightly nutty flavor makes it an excellent alternative to white rice or couscous.
The first step in preparing quinoa is to remove the saponins, a process that requires soaking the grain in water for a few hours, then changing the water and resoaking again, or rinsing it in ample running water either in a fine strainer or in cheesecloth. Boxed quinoa typically has been pre-rinsed for convenience.
A common cooking method is to treat quinoa much like rice, bringing two cups of water to a boil with one cup of grain, covering at a low simmer and cooking for 14–18 minutes or until the germ separates from the seed. The cooked germ looks like a tiny curl and should have a slight bite to it (like al dente pasta). Alternatively, one can use a rice cooker to prepare quinoa.
Vegetables and seasonings can also be added to make a wide range of dishes. It is also well-suited to vegetable pilafs, complementing bitter greens like kale.
Quinoa can serve as a high-protein breakfast food mixed with honey, almonds, or berries; it is also sold as a dry product, much like corn flakes.
As a snack food, Quinoa can be toasted in a dry pan over medium heat until it is browned and mixed with granola, fruit (fresh or dried), coconut, or just eaten by itself.
Quinoa flour can be used in wheat-based and gluten-free baking. For the latter, it can be combined with sorghum flour, tapioca, and potato starch to create a nutritious gluten-free baking mix. A suggested mix is three parts quinoa flour, three parts sorghum flour, two parts potato starch, and one part tapioca starch.
Lastly, quinoa may be germinated in its raw form to boost its nutritional value. Germination activates its natural enzymes and multiplies its vitamin and mineral content. In fact, quinoa has a notably short germination period: only 2-4 hours resting in a glass of clean water is enough to make it sprout and release gases, as opposed to, eg., 12 hours overnight with wheat. This process, besides its nutritional enhancements, softens the grains, making them very suitable to be added to salads and other cold foods.
[edit] Name
This crop is known as "quinoa" in English and is pronounced with the stress on either the first syllable (/'kiːn.wɑː/) or the second (/kɪ.'nəʊ.ə/). In Spanish, the spelling and pronunciation vary by region. The accent may be on the first syllable and is usually spelled quinua (/'ki.nwa/), with quínoa (/'ki.no.a/) being a variant, or on the second syllable quinoa (/ki.'no.a/). The name ultimately comes from the Quechua kinua or kinoa. There are multiple other native names in South America:
- Quechua: ayara, kiuna, kuchikinwa, achita, kinua, kinoa, chisaya mama
- Aymara: supha, jopa, jupha, juira, ära, qallapi, vocali
- Chibchan: suba, pasca
- Mapudungun: dawe, sawe
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