Characterization of Selenium Speciation in Se-Enriched Crops: Crop Selection Approach

Abstract

Accurately quantifying selenium (Se) speciation and transformation in Se-enriched crops is highly significant for human health. The investigation of Se species in Se-enriched crops involves assessing the enrichment of both organic and inorganic Se species, considering their plant families and edible parts. The staple crops of rice, corn, and wheat showed no or less inorganic Se with the increase of total Se; however, potatoes expressed a proportion of selenate [Se(VI)]. In addition, the organic Se proportions in Se-enriched crops of Cruciferous, Brassicaceae, and Umbelliferae plant families were relatively lower than the proportion of inorganic Se. Concurrently, the edible parts of the Se-enriched gramineous or cereal crops enriched with organic Se and crops with fruit, stem, leaf, and root as edible parts contain the maximum percentage of organic Se with a certain proportion of inorganic Se. This study contributes to a sparse body of literature by meticulously discerning appropriate Se-enriched crop selection through a comprehensive evaluation of Se speciation and its organic and inorganic accumulation potential.

Associations of dietary selenium intake with the risk of chronic diseases and mortality in US adults

“…Therefore, it is necessary to comprehensively analyze the selenium intake status of children in different age groups in the future, and provide nutritional recommendations for whether selenium supplement is needed in the children's diets. Selenium has a wide range of sources in our daily diet, including meat (especially beef, pork and fish) (55,56), nuts (57), and grains (58). In addition, some multivitamins, such as Australian multivitamins (Elevit) and microbial supplements, are also part of the dietary selenium source (59).…”

“…Selenium has a wide range of sources in our daily diet, including meat (especially beef, pork and fish) ( 55 , 56 ), nuts ( 57 ), and grains ( 58 ). In addition, some multivitamins, such as Australian multivitamins (Elevit) and microbial supplements, are also part of the dietary selenium source ( 59 ).…”

Comments on “Characterization of Selenium Speciation in Se-Enriched Crops: Crop Selection Approach”

“…In the article of Farooq et al, the authors applied a SAX method that they cited through a chain of references to a vendor’s application note, which is an adaptation of a SAX method published by Ge et al The note presents a SAX separation at pH 5.2 and does show SeCys 2 eluting in the void volume. Indeed, this note finally denoted only to environmental (natural water) samples to quantify inorganic anionic selenite and selenate, while the original source explicitly concluded in its Results and Discussion “... it is not clear whether the peak contribution to selenocystine is completely resolved from any other selenium-containing species eluted in the void volume.”…”

“…Accordingly, all data about the quantitative or qualitative aspects of SeCys, SeCys 2 , and “total O-Se” presented in the article of Farooq et al should be reconsidered.…”