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Brassica juncea, also known as mustard greens, Indian mustard and leaf mustard, is a species of mustard plant. Sub-varieties include Southern Giant Curled Mustard, which resembles a headless cabbage such as Kale, but with a distinct horseradish-mustard flavor. It is also known as green mustard cabbage.
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Uses
Food
The leaves, the seeds, and the stem of this mustard variety are edible. The plant appears in some form in African, Indian, Chinese, Japanese, and Soul food cuisine. Cultivars of B. juncea are grown as greens, and for the production of oilseed. The leaves are used in African[1] cooking, and leaves, seeds, and stems are used in Indian cuisine. B. juncea subsp. tatsai which has a particularly thick stem, is used to make the Indian pickle called Achar , and the Chinese pickle zha cai. The mustard made from the seeds of the Brassica juncea is called brown mustard.citation needed The leaves (Raai / Rai in Gujarati) are used in many Indian dishes.
Brassica juncea is more pungent than the closely-related Brassica oleracea greens (kale, cabbage, collard greens, et cetera) and is frequently mixed with these milder greens in a dish of "mixed greens", which may include wild greens such as dandelion. As with other greens in soul food cooking, mustard greens are generally flavored by being cooked for a long period with ham hocks or other smoked pork products. Mustard greens are high in Vitamin A and Vitamin K.
Chinese and Japanese cuisines also make use of mustard greens. A large variety of B. juncea cultivars are used including zha cai (tatsoi), mizuna, takana (var. integlofolia), juk gai choy, and hseuh li hung (雪里红). Asian mustard greens are most often stir-fried or pickled. A Southeast Asian dish called asam gai choy or kiam chai boey is often made with leftovers from a large meal. It involves stewing mustard greens with tamarind, dried chillies and leftover meat on the bone.
Food supplement
B. juncea can hyperaccumulate cadmium and many other soil trace elements. Specially cultured, it can be used as a selenium, chromium, iron and zinc food supplement.
Green manure
Vegetable growers sometimes grow mustard as a green manure. Its main purpose is to act as a mulch, covering the soil to suppress weeds between crops. If grown as a green manure, the mustard plants are cut down at the base when sufficiently grown, and left to wither on the surface, continuing to act as a mulch until the next crop is due for sowing, when the mustard is dug in. In the UK, summer and autumn-sown mustard is cut down from October. April sowings can be cut down in June, keeping the ground clear for summer-sown crops.citation needed One of the disadvantages of mustard as a green manure is its propensity to harbor club root.
Phytoremediation
This plant is used to remove heavy metals from the soil in hazardous waste sites because it has a higher tolerance for these substances and stores the heavy metals in its cells. The plant is then harvested and disposed of properly. This method is easier and less expensive than traditional methods for the removal of heavy metals.It also prevents erosion of soil from these sites preventing further contamination.
References
- ^ Grubben, G.J.H. & Denton, O.A. (2004) Plant Resources of Tropical Africa 2. Vegetables. PROTA Foundation, Wageningen; Backhuys, Leiden; CTA, Wageningen.
Further reading
- Everitt, J.H.; Lonard, R.L., Little, C.R. (2007). Weeds in South Texas and Northern Mexico. Lubbock: Texas Tech University Press. ISBN 0-89672-614-2
See also
- Brassica rapa - related family of edible greens used in Asian cooking.
- Brassica nigra - black mustard, another mustard variety.
- Brassica alba - yellow or white mustard, another mustard variety.
- Brassica carinata - Ethiopian mustard
- Brassica oleracea - Wild mustard
For other edible plants in the family Brassicaceae, see cruciferous vegetables.
External links
- PROTAbase on Brassica juncea
- Brassica juncea
- Culinary description of the many tasty varieties of mustard greens
- Multilingual taxonomic information from the University of Melbourne
- Photos and information on Southern Giant Curled Mustard
- Mustard Green Manures: Washington State University Extension paper on cover crops.
Wikipedia content modification information:
- This page was last modified on 27 August 2008, at 18:49.
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