Amaranth grain: Difference between revisions
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* Amaranth grain is deficient in some essential amino acids such as [[leucine]] and [[threonine]]<ref>{{cite journal|author=Ricardo Bressani, Luiz G. Elias and Arnoldo Garcia-Soto|year=1989|title=Limiting amino acids in raw and processed amaranth grain protein from biological tests|journal=PLANT FOODS FOR HUMAN NUTRITION | volume=39|number=3|pages= 223-234| publisher=Kluwer Academic Publishers|doi= 10.1007/BF01091933}}</ref>,<ref>{{cite journal|title=Chemical Composition of the Above-ground Biomass of Amaranthus cruentus |
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and A. hypochondriacus|journal=ACTA VET. BRNO|volume=75|year=2006|pages=133-138|url=http://actavet.vfu.cz/pdf/200675010133.pdf}}</ref> - both of which are present in wheat germ.{{cite journal|author=Garcia et al.|title=Composition of Air-classified Defatted Com and Wheat-Germ Flours|journal=Cereal Chemistry|volume=49|number=5|pages=499-507|year=1972|url=http://ddr.nal.usda.gov/bitstream/10113/31532/1/CAIN729098901.pdf}}</ref>,<ref>{{cite web|title=Nutrition Content - Wheat Germ Crude|url=http://nutritiondata.self.com/facts/cereal-grains-and-pasta/5743/2|access date=September 2011}} |
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* Amaranth grain is free of [[gluten]], which is important for people with gluten allergies. |
* Amaranth grain is free of [[gluten]], which is important for people with gluten allergies. |
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Revision as of 12:25, 19 September 2011
Nutritional value per 100 g (3.5 oz) | |
---|---|
Energy | 1,554 kJ (371 kcal) |
65 g | |
Sugars | 1.7 g |
Dietary fiber | 7 g |
7 g | |
14 g | |
Vitamins | Quantity %DV† |
Thiamine (B1) | 8% 0.1 mg |
Riboflavin (B2) | 15% 0.2 mg |
Niacin (B3) | 6% 0.9 mg |
Pantothenic acid (B5) | 30% 1.5 mg |
Vitamin B6 | 35% 0.6 mg |
Folate (B9) | 21% 82 μg |
Minerals | Quantity %DV† |
Calcium | 12% 159 mg |
Iron | 42% 7.6 mg |
Magnesium | 59% 248 mg |
Manganese | 148% 3.4 mg |
Phosphorus | 45% 557 mg |
Potassium | 17% 508 mg |
Zinc | 26% 2.9 mg |
Other constituents | Quantity |
Water | 11 g |
†Percentages estimated using US recommendations for adults,[1] except for potassium, which is estimated based on expert recommendation from the National Academies.[2] |
Nutritional value per 100 g (3.5 oz) | |
---|---|
Energy | 429 kJ (103 kcal) |
19 g | |
Dietary fiber | 2 g |
2 g | |
4 g | |
Vitamins | Quantity %DV† |
Thiamine (B1) | 2% 0.02 mg |
Riboflavin (B2) | 2% 0.02 mg |
Niacin (B3) | 2% 0.24 mg |
Vitamin B6 | 6% 0.1 mg |
Folate (B9) | 6% 22 μg |
Minerals | Quantity %DV† |
Calcium | 4% 47 mg |
Iron | 12% 2.1 mg |
Magnesium | 15% 65 mg |
Manganese | 39% 0.9 mg |
Phosphorus | 12% 148 mg |
Potassium | 5% 135 mg |
Zinc | 8% 0.9 mg |
Other constituents | Quantity |
Water | 75 g |
†Percentages estimated using US recommendations for adults,[1] except for potassium, which is estimated based on expert recommendation from the National Academies.[2] |
Amaranth has been cultivated as a grain for 8,000 years. [3] The yield of grain amaranth is comparable to rice or maize. It was a staple food of the Aztecs, and was used as an integral part of Aztec religious ceremonies. The cultivation of amaranth was banned by the conquistadores upon their conquest of the Aztec nation. Because the plant has continued to grow as a weed since that time, its genetic base has been largely maintained. Research on grain amaranth began in the US in the 1970s. By the end of the 1970s, a few thousand acres were being cultivated.[4] Much of the grain currently grown is sold in health food shops.
Grain amaranth is also grown as a food crop in limited amounts in Mexico, where it is used to make a candy called alegría (Spanish for happiness) at festival times. Amaranth species that are still used as a grain are: Amaranthus caudatus, Amaranthus cruentus, and Amaranthus hypochondriacus. The grain is popped and mixed with honey. In Maharashtra state of India, it is called “Rajgira” (राजगीरा) in the Marathi language. The popped grain is mixed with melted jaggery in proper proportion to make iron and energy rich “laddus,” a popular food provided at the Mid-day Meal Program in municipal schools.
Amaranth grain can also be used to extract amaranth oil - a particularly valued pressed seed oil with many commercial uses.
Nutritional analysis
As the following table shows, in a raw form, grain amaranth is particularly nutritious.[5][6]
Raw amaranth grain, however, isn't edible and can not be digested. Amaranth grain must be prepared and cooked like other grains. Another table below suggests cooked amaranth is a competing and promising source of nutrition when compared to wheat bread.
Notable nutritional content attributes of raw amaranth grain include:-
- The protein is of an unusually high quality, according to ECHO.[3]
- A ¼ cup of amaranth grain supplies 60% of the Recommended Dietary Allowance of iron. [7]
- Amaranth grain is particularly high in lysine, an amino acid that most grains lack.[8]
- Amaranth grain is deficient in some essential amino acids such as leucine and threonine[9],[10] - both of which are present in wheat germ.Garcia; et al. (1972). "Composition of Air-classified Defatted Com and Wheat-Germ Flours" (PDF). Cereal Chemistry. 49 (5): 499–507.
{{cite journal}}
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(see the help page). ~ composition: !! Amaranth[11] !! Wheat[12] !! Rice[13] !! Sweetcorn[14] !! Potato[15]
|- ! Component (per 100g portion) !! Amount !! Amount !! Amount !! Amount !! Amount |- | water (g) || 11 || 11 || 12 || 76 || 82 |- | energy (kJ) || 1554 || 1506 || 1527 || 360 || 288 |- | protein (g) || 14 || 23 || 7 || 3 || 1.7 |- | fat (g) || 7 || 10 || 1 || 1 || 0.1 |- | carbohydrates (g) || 65 || 52 || 79 || 19 || 16 |- | fiber (g) || 7 || 13 || 1 || 3 || 2.4 |- | sugars (g) || 1.7 || <0.1 || >0.1 || 3 || 1.2 |- | iron (mg) || 7.6 || 6.3 || 0.8 || 0.5 || 0.5 |- | manganese (mg) || 3.4 || 13.3 || 1.1 || 0.2 || 0.1 |- | calcium (mg) || 159 || 39 || 28 || 2 || 9 |- | magnesium (mg) || 248 || 239 || 25 || 37 || 21 |- | phosphorus (mg) || 557 || 842 || 115 || 89 || 62 |- | potassium (mg) || 508 || 892 || 115 || 270 || 407 |- | zinc (mg) || 2.9 || 12.3 || 1.1 || 0.5 || 0.3 |- | pantothenic acid (mg) || 1.5 || 2.3 || 1.0 || 0.7 || 0.3 |- | vitB6 (mg) || 0.6 || 1.3 || 0.2 || 0.1 || 0.2 |- | folate (µg) || 82 || 281 || 8 || 42 || 18 |- | thiamin (mg) || 0.1 || 1.9 || 0.1 || 0.2 || 0.1 |- | riboflavin (mg) || 0.2 || 0.5 || >0.1 || 0.1 || >0.1 |- | niacin (mg) || 0.9 || 6.8 || 1.6 || 1.8 || 1.1 |}
The table below presents nutritional values of cooked, edible form of amaranth grain to cooked, edible form of wheat grain as reported by United States Department of Agriculture's National Nutrient Database for Standard Reference, Release 23 (2010).
Synopsis[16] ~ composition: | Amaranth grain, cooked[17] | Bread, wheat germ[18] |
---|---|---|
Component (per 100g portion) | Amount | Amount |
water (g) | 75 | 37 |
energy (kJ) | 429 | 1092 |
protein (g) | 4 | 10 |
fat (g) | 2 | 3 |
carbohydrates (g) | 19 | 48 |
fiber (g) | 2 | 2 |
sugars (g) | n/a | 4 |
iron (mg) | 2.1 | 3.5 |
manganese (mg) | 0.85 | 0.85 |
calcium (mg) | 47 | 89 |
magnesium (mg) | 65 | 28 |
phosphorus (mg) | 148 | 121 |
potassium (mg) | 135 | 254 |
zinc (mg) | 0.9 | 1.0 |
pantothenic acid (mg) | <0.1 | 0.5 |
vitB6 (mg) | 0.11 | 0.08 |
folate (µg) | 22 | 118 |
thiamin (mg) | <0.1 | 0.4 |
riboflavin (mg) | 0.02 | 0.38 |
niacin (mg) | 0.24 | 4.5 |
Additional agricultural information
Amaranth from its start as a plant has literally a worldwide population currently where there are varieties for greens, varieties for grain, combinations and even ornamentals. The Great Plains has seen a surge in this crop from Rodale Farms developed varieties.
Amaranthus retroflexus, or pigweed, is a wild amaranth species in the United States. The name derives from the plant's tendency to sprout where hogs are pasture fed. Although both the leaves and seeds are edible, pigweed has not been cultivated as a food crop.
The virtue of amaranth is in light soils, it will produce food under harsh and lackluster nutrient conditions much like grain sorghum. It is a very efficient grain crop.
References
- ^ a b United States Food and Drug Administration (2024). "Daily Value on the Nutrition and Supplement Facts Labels". Retrieved 2024-03-28.
- ^ a b National Academies of Sciences, Engineering, and Medicine; Health and Medicine Division; Food and Nutrition Board; Committee to Review the Dietary Reference Intakes for Sodium and Potassium (2019). Oria, Maria; Harrison, Meghan; Stallings, Virginia A. (eds.). Dietary Reference Intakes for Sodium and Potassium. The National Academies Collection: Reports funded by National Institutes of Health. Washington, DC: National Academies Press (US). ISBN 978-0-309-48834-1. PMID 30844154.
- ^ a b G. Kelly O'Brien and Martin L. Price (1983). "Amaranth: Grain & Vegetable Types" (PDF). ECHO Technical Note.
- ^ Thomas Jefferson Agricultural Institute. "Grain Amaranth: A Lost Crop of the Americas". (PDF version also available)
- ^ J.N. Cole (1979). Amaranth: from the Past, for the Future. Rodale Press, Emmaus, PA.
- ^ USDA
- ^ "Certified Organic Amaranth Typical Quality Analysis" (PDF). American Health & Nutrition.
- ^ Robert L. Myers and Daniel H. Putnam (1988). "Growing Grain Amaranth as a Specialty Crop". Crop Systems. University of Minnesota. FS-03458-GO.
- ^ Ricardo Bressani, Luiz G. Elias and Arnoldo Garcia-Soto (1989). "Limiting amino acids in raw and processed amaranth grain protein from biological tests". PLANT FOODS FOR HUMAN NUTRITION. 39 (3). Kluwer Academic Publishers: 223–234. doi:10.1007/BF01091933.
- ^ "Chemical Composition of the Above-ground Biomass of Amaranthus cruentus and A. hypochondriacus" (PDF). ACTA VET. BRNO. 75: 133–138. 2006.
{{cite journal}}
: line feed character in|title=
at position 73 (help) - ^ raw, uncooked
- ^ germ, crude
- ^ white, long-grain,regular, raw, unenriched
- ^ sweet, yellow, raw
- ^ white, flesh and skin, raw
- ^ USDA
- ^ Amaranth grain, cooked
- ^ Bread, wheat germ