Selenium biofortification of rice grains and implications on macronutrients quality

Fernando Cebola Lidon, Karliana Oliveira, Maria Manuela Ribeiro, João Pelica, Inês Pataco, José Cochicho Ramalho, António Eduardo Leitão, Ana Sofia Almeida, Paula Scotti Campos, Ana I. Ribeiro-Barros, Isabel P. Pais, Maria Manuela Silva, Maria Fernanda Pessoa, Fernando Henrique Reboredo

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Selenium is an essential element for human health but its intake is low. Accordingly, biofortified rice with this trace element can be prophylactic to consumers. In this context, this study aimed to develop an agronomic itinerary for rice biofortification with selenium, considering sodium selenite and selenate as foliar fertilizers. Since both forms of selenium fertilizers have different metabolic specificity among genotypes, the implications on sugars, fatty acids and proteins quality were also assessed. Biofortification was performed in field trials, in four target genotypes, applying both foliar fertilizers with concentrations ranging between 0 and 300 g Se ha−1. It was found that biofortification with sodium selenite caused, relatively to sodium selenate, a higher accumulation of selenium in the grain. Application of high concentrations of sodium selenite and selenate increased total lipids in all the genotypes, mostly oleic acid (C18:1), linoleic (C18:2) and palmitic acid (C16:0). Sugars (with the concentration pattern being sucrose > glucose > raffinose > fructose) and proteins showed a similar trend. It is concluded that biofortification of crops with selenium is more effective with 120–300 g Se ha−1, but macronutrients quality in the flour varies significantly within rice genotypes.

Original languageEnglish
Pages (from-to)22-29
Number of pages8
JournalJournal of Cereal Science
Volume81
DOIs
Publication statusPublished - 1 May 2018

Fingerprint

biofortification
Selenium
selenates
sodium selenite
selenium
Selenic Acid
Sodium Selenite
Fertilizers
rice
Genotype
genotype
selenium fertilizers
Sugars
fertilizers
sugars
raffinose
Raffinose
Sugar Acids
palmitic acid
Palmitic Acid

Keywords

  • Rice
  • Selenium biofortification
  • Sodium selenate
  • Sodium selenite

Cite this

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title = "Selenium biofortification of rice grains and implications on macronutrients quality",
abstract = "Selenium is an essential element for human health but its intake is low. Accordingly, biofortified rice with this trace element can be prophylactic to consumers. In this context, this study aimed to develop an agronomic itinerary for rice biofortification with selenium, considering sodium selenite and selenate as foliar fertilizers. Since both forms of selenium fertilizers have different metabolic specificity among genotypes, the implications on sugars, fatty acids and proteins quality were also assessed. Biofortification was performed in field trials, in four target genotypes, applying both foliar fertilizers with concentrations ranging between 0 and 300 g Se ha−1. It was found that biofortification with sodium selenite caused, relatively to sodium selenate, a higher accumulation of selenium in the grain. Application of high concentrations of sodium selenite and selenate increased total lipids in all the genotypes, mostly oleic acid (C18:1), linoleic (C18:2) and palmitic acid (C16:0). Sugars (with the concentration pattern being sucrose > glucose > raffinose > fructose) and proteins showed a similar trend. It is concluded that biofortification of crops with selenium is more effective with 120–300 g Se ha−1, but macronutrients quality in the flour varies significantly within rice genotypes.",
keywords = "Rice, Selenium biofortification, Sodium selenate, Sodium selenite",
author = "Lidon, {Fernando Cebola} and Karliana Oliveira and Ribeiro, {Maria Manuela} and Jo{\~a}o Pelica and In{\^e}s Pataco and Ramalho, {Jos{\'e} Cochicho} and Leit{\~a}o, {Ant{\'o}nio Eduardo} and Almeida, {Ana Sofia} and Campos, {Paula Scotti} and Ribeiro-Barros, {Ana I.} and Pais, {Isabel P.} and Silva, {Maria Manuela} and Pessoa, {Maria Fernanda} and Reboredo, {Fernando Henrique}",
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Selenium biofortification of rice grains and implications on macronutrients quality. / Lidon, Fernando Cebola; Oliveira, Karliana; Ribeiro, Maria Manuela; Pelica, João; Pataco, Inês; Ramalho, José Cochicho; Leitão, António Eduardo; Almeida, Ana Sofia; Campos, Paula Scotti; Ribeiro-Barros, Ana I.; Pais, Isabel P.; Silva, Maria Manuela; Pessoa, Maria Fernanda; Reboredo, Fernando Henrique.

In: Journal of Cereal Science, Vol. 81, 01.05.2018, p. 22-29.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Selenium biofortification of rice grains and implications on macronutrients quality

AU - Lidon, Fernando Cebola

AU - Oliveira, Karliana

AU - Ribeiro, Maria Manuela

AU - Pelica, João

AU - Pataco, Inês

AU - Ramalho, José Cochicho

AU - Leitão, António Eduardo

AU - Almeida, Ana Sofia

AU - Campos, Paula Scotti

AU - Ribeiro-Barros, Ana I.

AU - Pais, Isabel P.

AU - Silva, Maria Manuela

AU - Pessoa, Maria Fernanda

AU - Reboredo, Fernando Henrique

PY - 2018/5/1

Y1 - 2018/5/1

N2 - Selenium is an essential element for human health but its intake is low. Accordingly, biofortified rice with this trace element can be prophylactic to consumers. In this context, this study aimed to develop an agronomic itinerary for rice biofortification with selenium, considering sodium selenite and selenate as foliar fertilizers. Since both forms of selenium fertilizers have different metabolic specificity among genotypes, the implications on sugars, fatty acids and proteins quality were also assessed. Biofortification was performed in field trials, in four target genotypes, applying both foliar fertilizers with concentrations ranging between 0 and 300 g Se ha−1. It was found that biofortification with sodium selenite caused, relatively to sodium selenate, a higher accumulation of selenium in the grain. Application of high concentrations of sodium selenite and selenate increased total lipids in all the genotypes, mostly oleic acid (C18:1), linoleic (C18:2) and palmitic acid (C16:0). Sugars (with the concentration pattern being sucrose > glucose > raffinose > fructose) and proteins showed a similar trend. It is concluded that biofortification of crops with selenium is more effective with 120–300 g Se ha−1, but macronutrients quality in the flour varies significantly within rice genotypes.

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