An innovative approach for iodine supplementation using iodine-rich phytogenic food

Abstract

Iodine, as one of the essential trace elements for human body, is very important for the proper function of thyroid gland. In some regions, people are still suffering from iodine deficiency disorder (IDD). How to provide an effective and cost-efficient iodine supplementation has been a public health issue for many countries. In this review, a novel iodine supplementation approach is introduced. Different from traditional iodine salt supplement, this approach innovatively uses cultivated iodine-rich phytogenic food as the supplement. These foods are cultivated using alga-based organic iodine fertilizer. The feasibility, mechanics of iodine absorption of plants from soil and the bioavailability of iodine-rich phytogenic food are further discussed.

Biofortificación con yodo en plantas para consumo humano

“…Adicionalmente, en la mayoría de los países industrializados el consumo de sal de mesa va en disminución (Hetzel y Standbry, 1980) además de que se ha demostrado que el yodo en la sal de mesa se volatiliza (Laillou et al, 2015). Por otra parte, el consumo de yodo en formas orgánicas se considera más adecuado (Weng et al, 2014), ya que también se han evidenciado casos de bocio endémico asociado al exceso en el consumo de yodo inorgánico (Zhao et al, 2000). Debido a lo anterior, se hace necesario aumentar el uso de técnicas como la biofortificación de los cultivos para lograr un consumo adecuado de yodo, ya sea como complemento o como alternativa a la yodatización de la sal de mesa.…”

“…Additionally, in most industrialized countries consumption of table salt is decreasing (Hetzel and Standbry, 1980) plus it has been shown that iodine in table salt volatilizes (Laillou et al, 2015). Moreover, iodine consumption in organic forms is considered more appropriate (Weng et al, 2014), as it has been also evidenced cases of endemic goiter associated to excessive consumption of inorganic iodine (Zhao et al, 2000). Because of this, it is necessary to increase the use of techniques such as crop bio-fortification to achieve adequate iodine intake, either as complement or as an alternative to iodization of table salt.…”

“…Los mismos autores encontraron que la absorción de yodo por hortalizas estaba en función directa de la concentración del elemento en el suelo, hasta alcanzar un límite que se presentó diferente para cada especie vegetal. En un estudio reciente Weng et al (2014) demostraron que es posible usar la composta con algas marinas incorporada al suelo como un mecanismo de fertilización con yodo.…”

“…The same authors found that the iodine absorption by vegetables was a direct function of the concentration from the element in the soil, up to a limit that was different for each plant species. In a recent study Weng et al (2014) demonstrated that it is possible to use seaweed compost incorporated into the soil as a mechanism of fertilization with iodine.…”

Management of waste microalgae harvested from iodine rich groundwater holding ponds

“…Increasing iodine in plants -iodine biofortification -is facilitated by using iodine-rich fertilizers. By this method many vegetables were able to elevate iodine contents to different extents (Weng et al, 2014). Some root and fruit vegetables can have a iodine content of several mg kg -1 (dry weight), e.g.…”