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[Selenium content in gluten-free products].

S A Urubkov¹, S S Khovanskaya¹, S S Smirnov¹

¹Scientific Research Institute of Food-concentrate Industry and Special Food Technology - Branch Federal Research Centre of Nutrition and Biotechnology and Food Safety, 142718, Moscow Region, Leninsky District, village Izmailovo, Russian Federation.

Voprosy Pitaniia

|March 19, 2021

Summary

Gluten-free crops like amaranth, buckwheat, and corn are rich in selenium. Including amaranth-based foods in gluten-intolerant children's diets can help prevent selenium deficiency.

Keywords:

amaranth children gluten intolerance gluten-free products grain mixtures grain-based product selenium

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Area of Science:

Nutritional Science
Food Chemistry

Background:

Special diets are crucial for managing digestive diseases, but dietary monotony can hinder nutrient intake and treatment effectiveness for conditions like gluten intolerance.
Identifying nutrient-rich gluten-free foods is essential for maintaining adequate nutrition.

Purpose of the Study:

To quantify the selenium content in gluten-free flours (amaranth, buckwheat, corn, rice) and their mixtures.
To determine selenium levels in pancakes made from amaranth and buckwheat flour mixtures.

Main Methods:

Atomic absorption spectroscopy with electrothermal atomization was used to measure selenium content.
Gluten-free flour mixtures were prepared in varying ratios (1:2, 1:1, 1:1:1).
Pancakes were baked using amaranth and buckwheat flour mixtures.

Main Results:

Amaranth (515 μg/kg), buckwheat (405 μg/kg), and corn (458 μg/kg) flours are significant selenium sources; rice flour contains less (135 μg/kg).
Flour mixtures showed selenium content ranging from 258 to 522 μg/kg, with amaranth-corn mixtures being highest.
Pancakes made from amaranth and buckwheat flour contained 290–326 μg/kg selenium, meeting 7.3–8.1% of daily needs per 50g serving for children.

Conclusions:

Amaranth, buckwheat, and corn are valuable gluten-free sources of selenium.
Amaranth-based foods can help address selenium deficiency in children with gluten intolerance.
Dietary strategies incorporating these gluten-free grains can improve nutritional outcomes.