Chemical leaching of nickel from the seeds of the metal hyperaccumulator plant Alyssum murale

Barbaroux, Romain; Meunier, Nathalie; Mercier, Guy; Taillard, Vincent; Morel, Jean-Louis; Simonnot, Marie-Odile; Blais, Jean-François

doi:10.1016/j.hydromet.2009.09.005

Cited by 30 publications

(13 citation statements)

References 22 publications

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“…Leaves have the greatest Ni concentrations among all organs of Ni-hyperaccumulators from the Brassicaceae (Broadhurst et al 2004). Seeds may contain high concentrations of Ni depending on the harvesting stage (Barbaroux et al 2009 Calcium is generally highly accumulated by all plants and, like Ni, mainly stored in leaves and reproductive parts (e.g., seeds). The concentrations in leaves were higher for Alyssum species (1.9-5.4%) followed by Bornmuellera and Leptoplax (1.3-2.9%).…”

Section: Elemental Concentration Of the Hyperaccumulatorsmentioning

confidence: 99%

“…The use of metal hyperaccumulating plants may be a great help to face both issues (Chaney et al 2007;Bani et al 2007;Barbaroux et al 2009). The term "hyperaccumulator" was firstly defined by Jaffré and co-workers who described the spectacular accumulation of Ni in the plant Sebertia accuminata which was described as "hypernickelophore" (Jaffre et al 1976).…”

Section: Introductionmentioning

confidence: 99%

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Selection and Combustion of Ni-Hyperaccumulators for the Phytomining Process

Zhang

Houzelot

Bani

et al. 2014

International Journal of Phytoremediation

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Ni recovery from serpentine soils by phytomining has proved feasible. Phytomining involves the crop of hyperaccumulating plants with high Ni contents and the valorization of Ni by pyro or hydrometallurgical process. In order to evaluate the Ni content of different plants, we analyzed the organs of 14 hyperaccumulators from three genera: Alyssum, Leptoplax and Bornmuellera. The highest concentration was recorded in the leaves of Leptoplax (34.3 +/- 0.7 mg g(-1)DM). Additionally, we investigated biomass combustion which is the first step of the process we designed to obtain a nickel salt. We showed that temperature and duration were important parameters to ensure a good quality of ashes. At the bench scale, the best conditions were 550 degrees C and 3 h. In this way, we obtained ashes in which Ni could reach 20 wt%. Biomass ashes can be considered as a bio-ore for recovering metal value.

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Section: Elemental Concentration Of the Hyperaccumulatorsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Selection and Combustion of Ni-Hyperaccumulators for the Phytomining Process

Zhang

Houzelot

Bani

et al. 2014

International Journal of Phytoremediation

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“…Identification of such a biological model, able to live, thrive, and reproduce while producing nanoparticles, could be a great help in promoting green NP synthesis. Terrestrial organisms exposed to very high metal concentrations (Moradi et al 2010;Barbaroux et al 2009) are known to highly concentrate the metal in their tissues, all the while prospering. Similar behavior might exist in organisms exposed to nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

Biosynthesis of gold nanoparticles by the living freshwater diatom Eolimna minima, a species developed in river biofilms

Feurtet‐Mazel

Mornet

Charron

et al. 2015

Environ Sci Pollut Res

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Testing biotransformation capacities of living aquatic microalgae diatoms to naturally synthetize gold nanoparticles (AuNP) from gold salts and assessing aftereffects on their viability by microscope observations is a great challenge. In this work, a laboratory experiment was conducted, which aimed to observe (i) directly by transmission electronic and light microscopy and (ii) through indirect measurements (UV-visible spectroscopy) the periphytic freshwater diatom Eolimna minima exposed to gold salts. This work revealed the capacity of E. minima to intracellularly biosynthetize AuNP and to tolerate it. AuNP synthesis appears as a mechanism of detoxification to protect diatom from gold salt contamination. We also pointed out the risks associated with the spread of diatoms full of AuNP, through the trophic web of freshwater ecosystems. The preponderant part of the diatoms in natural biofilms associated with their position at the basis of the trophic webs in rivers could then make them responsible for the contamination of their consumers (grazer animals) and consequently for the potential release of AuNP through the entire food web.

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“…Although successful phytoextraction generates large volumes of contaminated plant biomass, very few studies have addressed the issue of disposal. One approach, the use of liquid extraction to remove heavy metals from harvested biomass has been described in several studies 45 – 47 , and HCl is one of the most commonly applied reagents. This approach works efficiently because metal extraction from soils or solids is more effective under acidic conditions 48 .…”

Section: Discussionmentioning

confidence: 99%

Phytoextraction of cadmium-contaminated soil and potential of regenerated tobacco biomass for recovery of cadmium

Yang

Zeng

et al. 2017

Sci Rep

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The aim of this study was to estimate the influence of regenerated tobacco on the extraction of Cd from two acidic soils as well as to address the problem of how to deal with contaminated leaves following phytoextraction. Results showed that a coppicing tobacco led to a decline in Cd concentration in regenerated leaves and stalks when plants were grown in pots, but increased concentrations in regenerated lower and middle leaves when plants were grown under field conditions. The highest recorded bioconcentration factors in Chaling and Guanxi soil were 37.53 and 19.21 in lower leaves in the field, respectively. Total Cd extraction efficiency in practice (9.43% for Chaling soil and 6.24% for Guanxi soil) under field conditions confirmed our theoretical calculations (10.0% for Chaling soil and 6.73% for Guanxi soil). Use of a 0.5% hydrochloric acid(HCl) solution was sufficient to reduce Cd (98.4%) in tobacco leaves to permissible levels as required by the Hygienic Standard for Feeds in China (≤0.5 mg kg−1). Regenerated tobacco has the potential to allow cultivation of Cd contaminated farmland to produce animal feed, assist in lowering total Cd content of soil, and allow income generation for farmers.

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Chemical leaching of nickel from the seeds of the metal hyperaccumulator plant Alyssum murale

Cited by 30 publications

References 22 publications

Selection and Combustion of Ni-Hyperaccumulators for the Phytomining Process

Selection and Combustion of Ni-Hyperaccumulators for the Phytomining Process

Biosynthesis of gold nanoparticles by the living freshwater diatom Eolimna minima, a species developed in river biofilms

Phytoextraction of cadmium-contaminated soil and potential of regenerated tobacco biomass for recovery of cadmium

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