selenium content of different plants
moisture, time, and the concentration of water soluble selenium (HSDB). In plants, selenium is an essential element for growth. In the environment, uptake and accumulation by plants is influenced by the concentration and form of selenium present in soils (Neal, 1990). The most bio-available forms of selenium are considered to be those fractions
Oct 20, 2015· Selenium and nano-selenium in plant nutrition. Authors; Authors and affiliations; Hassan El-Ramady ... Zhao J (2013) The effects of selenium on physiological traits, grain selenium content and yield of winter wheat at different development stages. ... (2015) Selenium species in the roots and shoots of chickpea plants treated with different ...
Jan 16, 2018· The amount of selenium in different foods depends on the amount of selenium in the soil where the food was grown. ... plant-based foods for optimal nutrition. ... The selenium content …
Evaluation of total mineral, calcium, selenium, iron content of ten medicinal plants extracts of Manipur having anti-inflammatory properties" was undertaken to analyse the mineral content of ten medicinal plants of Manipur (Cissus adnata, Debregeasia longifolia, Clerodendrum serratum, Polygonum
Sep 23, 2016· Selenium levels can change over such a small area that the vegetables in your neighbor's garden may have more selenium than yours. Selenium content in meat can also vary, although not as drastically. The selenium content of animal products depends on the concentration of the element in the plants they eat.
Summary. In the present study the selenium and chromium content of different plant foods such as fruits, greens, flowers, vegetables, dried fruits, spices, condiments, cereals and pulses were analysed.
Plant growth and biomass of maize plant under selenium and NaCl. The shoot and root dry weights of maize were significantly affected by the application of NaCl and Se (p ≤ 0.001), the ...
Selenium is converted by plants from these inorganic to organic forms, including the major form l-selenomethionine and, in lesser amounts, l-selenocysteine. Therefore, selenium concentrations in foods are dependent on the selenium content of the soil in which the foods or ingredients were grown.
The concentration of Selenium in the ground soil varies greatly in different regions of the world. Because plant foods, such as grain, are further down on the food chain, their concentration of selenium is more dependent on soil content than are animal foods since animals' bodies regulate the amount of the mineral in their tissues to achieve a ...
Background. Selenium(Se) is an element found in the soil, which is also an essential micronutrient for human body. In fact, Se content of most of foods is very low, the Se requirement of the body can be satisfied with dietary supplements, Se-enriched foods is a good choice to deliver Se.
The levels and chemical forms of selenium in plant-based food vary according to the composition and selenium content of soil in which the plants are grown. Selenium-rich food sources include Brazil nuts, grains, seafood, organ meats, poultry, and dairy products. (More information)
The selenium content of foods varies greatly with the selenium in the soil where the food is grown or the animals are raised. Furthermore, the retention and use of selenium from the diet likely depends on the chemical form of selenium in foods.
selenium content. Plant species also differ in their ability to incorporate selenium from soil. Most forage plants are categorized as non-selenium accumulator plants (Hall, 2013). Selenium content in soils and plants is various due to parent materials origin, climate, and vegetation type. Selenium content in all
Some plants can safely accumulate very large amounts of selenium while others cannot so do not be surprised if adjacent plants are affected in different ways. A soil test can confirm toxic levels of selenium in the soil and a tissue test can confirm toxic levels of selenium in plants. Guidelines may differ in your area but generally, if the ...
Critical levels of selenium in raya (Brassica juncea Czern L.), maize (Zea mays L.), wheat (Triticum aestivum L.) and rice (Oryza sativa L.) were worked out by growing these crops in an alkaline silty loam soil treated with different levels of selenite-Se ranging from 1 to 25 μg g −1 soil.
There are two different types of chronic poisoning dependent on the chemical form of the ingested selenium. "Blind staggers" occurs when animals ingest water-soluble selenium compounds naturally found in accumulator plants. Toxicity from eating plants or grain with protein-bound, insoluble selenium is called "alkali disease."
The selenium content was determined in 44 vegetable samples from different regions of Slovenia and the contents found were in the range 0.3–77ngg−1 wet weight. View Show abstract
In plants, it sometimes occurs in toxic amounts as forage, e.g. locoweed. Selenium is a component of the amino acids selenocysteine and selenomethionine. In humans, selenium is a trace element nutrient that functions as cofactor for glutathione peroxidases and certain forms of thioredoxin reductase.
The selenium content of soil affects the amounts of selenium in the plants that animals eat, so the quantities of selenium in animal products also vary [2,5]. However, selenium concentration in soil has a smaller effect on selenium levels in animal products than in plant-based foods because animals maintain predictable tissue concentrations of ...
the selenium content of foods increased by about 1,600% while the contents of other elements such as Zn, Cu, Fe, Co, and Ni decreased by 25-45% from the 1970s to the 2000s. Ekholm et al. (2007) ascribed the increase in selenium content to the use of selenium-supplemented fertilizers.
Dietary Supplement Fact Sheet: Selenium — Health Professional ... Oct 12, 2012 · The content of selenium in food depends on the selenium content of the soil where plants are ... effects of different chemical forms of selenium, ...
Selenium concentration dependence on soil properties. ... exchangeable bases and content of plant available potassium. An average content of selenium in sandy loam soil samples taken from the 0-20 ...
The selenium content of plants in most soils is less than 1 mg/kg plant dry weight, whereas most plants grown in seleniferous soils show selenium levels in the range of 1 to 10 mg/kg plant dry weight. In the case of Se-hyperaccumulator plants, this can increase to between 1000 to 15,000 mg/kg .
plants, and as elemental selenium, selenites and selenates in particulate form. The level of selenium in most urban air ranges from 0.1 to 10 ng/m3, but higher levels may be found in certain areas, such as in the vicinity of copper smelters (Zoller & Reamer, 1976). 2.2 Water
Dec 29, 2017· The amount of selenium in plant-based foods can vary depending on the selenium content of the soil in which they were grown. Thus, selenium concentrations in crops depend largely on where they are ...
The paper collected relevant literatures on selenium and explored the function to plant, selenium content, influential factors and selenium specification and transformation. We believed that there should be more deep research on function of selenium to plant. Approaches of molecular, genetic engineering and isotope could be employed to breed selenium rich crops and possibilities in practice.
Nov 19, 2012· There is an interesting difference in the selenium content of Brazil nuts produced in different geographical regions of Brazil and nuts originating from countries to the east of Brazil. From the study results Brazil nuts growing in the Eastern Amazon regions of Brazil appear to contain much higher concentrations of selenium than those growing ...
The contents of selenium in plants varied greatly, because of plant species, planting environment, and the way of cultivation, etc. There is a great difference in the content of selenium in species, and there is a significant difference in the contents of selenium in different genotypes (Zhang et al, 2006).
Factors influencing the selenium content of plants have been reviewed by Johnson et al. (1967). One of the most important of these is the kind of plant. Rosenfeld and Beath (1964) have divided plants into three groups on the basis of their ability to accumulate selenium when grown on high-selenium soils.
Selenium also can be found in some meats and seafood. Animals that eat grains or plants that were grown in selenium-rich soil have higher levels of selenium in their muscle. In the U.S., meats and bread are common sources of dietary selenium [9,10]. Some nuts are also sources of selenium. Selenium content of foods can vary.
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