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http://hdl.handle.net/2445/47996
Title: | Selenium uptake by edible plants from enriched peat. |
Author: | Funes Collado, Virginia Morell García, Albert Rubio i Rovira, Roser López Sánchez, José Fermín |
Keywords: | Seleni Plantes comestibles Torba Nutrició Enzims Aminoàcids Selenium Edible plants Peat Nutrition Enzymes Amino acids |
Issue Date: | 28-Sep-2013 |
Publisher: | Elsevier B.V. |
Abstract: | As a constituent of selenoproteins, selenium (Se) is considered an essential element for human health.The main way that Se enters the body is via the consumption of vegetables, whose concentration of thiselement depends on soil Se content. We grew cabbage, lettuce, chard and parsley, in peat enriched in Seby means of the additive Selcote Ultra®and Na2SeO3and Na2SeO4. Total Se in plants was determinedby acidic digestion and Se speciation by an enzymatic extraction. Both were measured by ICP/MS. Theconcentration ranges were between 0.1 mg Se kg−1and 30 mg Se kg−1for plants grown in Selcote Ultra®media, and between 0.4 mg Se kg−1and 1606 mg Se kg−1for those grown in peat enriched with Se sodiumsalts. We found Se (IV), Se (VI) and SeMet in all the extracts. Peat fortified with Selcote Ultra®gave slightlyhigher Se concentration than natural content values. For plants grown with selenium sodium salts, Secontent increases with the Se added and part of the inorganic Se was converted mainly to SeMet. A highSe fortification can damage or inhibit plant growth. Cabbage showed the greatest tolerance to Se. |
Note: | Versió postprint del document publicat a: http://dx.doi.org/10.1016/j.scienta.2013.09.052 |
It is part of: | Scientia Horticulturae, 2013, vol. 164, p. 428-433 |
URI: | http://hdl.handle.net/2445/47996 |
Related resource: | http://dx.doi.org/10.1016/j.scienta.2013.09.052 |
ISSN: | 0304-4238 |
Appears in Collections: | Articles publicats en revistes (Enginyeria Química i Química Analítica) |
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