71–78% in groats
70–91% in different types of flour
Starch is 25% amylose and 75% amylopectin.
Depending on hydrothermal treatment, buckwheat groats contain 7–37% of resistant starch.
Crude protein is 18%, with biological values above 90%. This can be explained by a high concentration of all essential amino acids, especially lysine, threonine, tryptophan, and the sulphur-containing amino acids.
Rich in iron (60–100 ppm), zinc (20–30 ppm) and selenium (20–50 ppb)
10–200 ppm of rutin, 0.1–2% of tannins and presence of catechin-7-O-glucoside in groats.
Buckwheat contains 0.4 to 0.6 mg/g of fagopyrins
Buckwheat (Fagopyrum esculentum), also known as common buckwheat, Japanese buckwheat and silverhull buckwheat, is a plant cultivated for its grain-like seeds and as a cover crop. A related and more bitter species, Fagopyrum tataricum, a domesticated food plant common in Asia, but not as common in Europe or North America, is also referred to as buckwheat.
Buckwheat, a short-season crop, does well on low-fertility or acidic soils, but the soil must be well drained. Too much fertilizer, especially nitrogen, reduces yields. In hot climates it can be grown only by sowing late in the season, so that it blooms in cooler weather. The presence of pollinators greatly increases the yield. The nectar from buckwheat flower makes a dark-colored honey. Buckwheat is sometimes used as a green manure, as a plant for erosion control, or as wildlife cover and feed.
The plant has a branching root system with a primary taproot that reaches deeply into moist soil. Buckwheat has triangular seeds and produces a flower that is usually white, although can also be pink or yellow. Buckwheat branches freely, as opposed to tillering or producing suckers, causing a more complete adaption to its environment than other cereal crops. The seed hull density is less than that of water, making the hull easy to remove.
Buckwheat is raised for grain where a short season is available, either because it is used as a second crop in the season, or because the climate is limiting. Buckwheat can be a reliable cover crop in summer to fit a small slot of warm season. It establishes quickly, which suppresses summer weeds.Buckwheat has a growing period of only 10–12 weeks and it can be grown in high latitude or northern areas. It grows 30 to 50 inches (75 to 125 cm) tall.
Buckwheat contains higher levels of zinc, copper, and manganese than other cereal grains, and the bioavailability of zinc, copper, and potassium from buckwheat is also quite high. Potassium helps to maintain the water and acid balance in blood and tissue cells, zinc helps to bolster the immune system, and copper deﬁciency leads to a number of really scary-sounding neurodegenerative diseases and disorders with terrifyingly long names. Bottom line? Having buckwheat in your diet can help you stay ﬁt, nimble, and healthy.
Buckwheat also provides a very high level of protein, second highest only to oats. Not only is buckwheat protein well-balanced and rich in lysine, its amino acid score is 100, which is one of the highest amino acid scores among plant sources as well. Before you pin a gold star on buckwheat for its perfect test score, it’s important to note there is some evidence that the protein digestibility in humans can be somewhat low. While this makes it a less than ideal source of protein for growing children or anyone with digestive tract issues, it’s perfectly ﬁne for the grown-ups of the world. Besides, humans are meant to have a varied, omnivorous diet, so it’s good to obtain protein from a variety of sources.
How to use Buckwheat
Before breakfast, mix in water or milk and drink. or you can make bread and then eat.