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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Bioavailability Assessment of Copper, Iron, Manganese, Molybdenum, Selenium, and Zinc from Selenium-Enriched Lettuce

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da Silva, Emanueli do Nascimento [1, 2] ; Cadore, Solange [1]
Total Authors: 2
[1] Univ Estadual Campinas, Inst Chem, Campinas, SP - Brazil
[2] Univ Fed Ouro Preto, Inst Exact & Biol Sci, Dept Chem, Ouro Preto, MG - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Journal of Food Science; v. 84, n. 10, p. 2840-2846, OCT 2019.
Web of Science Citations: 0

Cu, Fe, Mn, Mo, Selenium (Se), and Zn bioavailability from selenate- and selenite-enriched lettuce plants was studied by in vitro gastrointestinal digestion followed by an assay with Caco-2 cells. The plants were cultivated in the absence and presence of two concentrations (25 and 40 mu mol/L of Se). After 28 days of cultivation, the plants were harvested, dried, and evaluated regarding the total concentration, bioaccessibility, and bioavailability of the analytes. The results showed that biofortification with selenate leads to higher Se absorption by the plant than biofortification with selenite. For the other nutrients, Mo showed high accumulation in the plants of selenate assays, and the presence of any Se species led to a reduction of the plant uptake of Cu and Fe. The accumulation of Zn and Mn was not strongly influenced by the presence of any Se species. The bioaccessibility values were approximately 71%, 10%, 52%, 84%, 71%, and 86% for Cu, Fe, Mn, Mo, Se, and Zn, respectively, and the contribution of the biofortified lettuce to the ingestion of these minerals is very small (except for Se and Mo). Due to the low concentrations of elements from digested plants, it was not possible to estimate the bioavailability for some elements, and for Mo and Zn, the values are below 6.9% and 3.4% of the total concentration, respectively. For Se, the bioavailability was greater for selenite-enriched than selenate-enriched plants (22% and 6.0%, respectively), because selenite is biotransformed by the plant to organic forms that are better assimilated by the cells. (AU)

FAPESP's process: 13/26855-2 - Evaluation of bioaccessible and bioavailable fractions of nutrients and contaminants in vegetables
Grantee:Solange Cadore
Support type: Regular Research Grants
FAPESP's process: 12/15020-4 - Bioaccessibility and bioavailability of nutrients and toxic elements in lettuce (Lactuca sativa)
Grantee:Emanueli Do Nascimento da Silva
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 14/15425-0 - Selenium biofortification of lettuce: study of selenium bioaccessibility and speciation in the edible portion of the plant
Grantee:Emanueli Do Nascimento da Silva
Support type: Scholarships abroad - Research Internship - Doctorate
FAPESP's process: 16/23625-4 - Applicability of nanoparticles in increasing bioavailability and bioavailability of fe and se in chocolate
Grantee:Emanueli Do Nascimento da Silva
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 08/57808-1 - National Institute of Advanced Analytical Science and Technology
Grantee:Celio Pasquini
Support type: Research Projects - Thematic Grants