Role of organic acids on the bioavailability of selenium in soil: A review

Dinh, Quang Toan; Li, Zhe; Tran, Thi Anh Thu; Wang, Dan; Liang, Dong

doi:10.1016/j.chemosphere.2017.06.034

Cited by 112 publications

(42 citation statements)

References 285 publications

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“…For example, the negative influence of sulfate (SO 4 2− ) and phosphate (PO 4 3− ) has been recently described [ 323 ]. The selenium bioavailability in soil is influenced also by the presence of organic acids, important components founded in the rhizosphere soil [ 324 ].…”

Section: Selenium Status Assessment In Animalsmentioning

confidence: 99%

A Summary of New Findings on the Biological Effects of Selenium in Selected Animal Species—A Critical Review

Hosnedlová

Kępińska

Skaličková

et al. 2017

IJMS

178

121

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Selenium is an essential trace element important for many physiological processes, especially for the functions of immune and reproductive systems, metabolism of thyroid hormones, as well as antioxidant defense. Selenium deficiency is usually manifested by an increased incidence of retention of placenta, metritis, mastitis, aborts, lowering fertility and increased susceptibility to infections. In calves, lambs and kids, the selenium deficiency demonstrates by WMD (white muscle disease), in foals and donkey foals, it is associated with incidence of WMD and yellow fat disease, and in pigs it causes VESD (vitamin E/selenium deficiency) syndrome. The prevention of these health disorders can be achieved by an adequate selenium supplementation to the diet. The review summarizes the survey of knowledge on selenium, its biological significance in the organism, the impact of its deficiency in mammalian livestock (comparison of ruminants vs. non-ruminants, herbivore vs. omnivore) and possibilities of its peroral administration. The databases employed were as follows: Web of Science, PubMed, MEDLINE and Google Scholar.

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Section: Selenium Status Assessment In Animalsmentioning

confidence: 99%

A Summary of New Findings on the Biological Effects of Selenium in Selected Animal Species—A Critical Review

Hosnedlová

Kępińska

Skaličková

et al. 2017

IJMS

178

121

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“…To simulate the effects of exogenous chemicals which commonly exist in the natural environment on the system, low-molecular-weight organic acids (LMWOAs) and exogenous metal ions served as the important factors. Lowmolecular-weight organic acids (LMWOAs) are hydrophilic acids with some special characteristics, such as reducibility, COOH/OH-richness, and complexation with metal ions [44][45][46][47]; besides, it has some resemblances with EDTA and is abundant in the environment. Therefore, it is significant to investigate effects of LMWOAs on the system, when it works with EDTA (humic acid has similar characteristics and was involved).…”

Section: Effects Of Exogenous Chemicals On the Systemmentioning

confidence: 99%

“…They could bridge Pb ions and SM2 surface sites via these functional groups by forming the bridging (LMWOA-Pb-SM2), so that some Pb ions avoided chelating with EDTA and were adsorbed onto SM2; tartaric acid had more functional groups and larger molecular weight than acetic acid, resulting in better bridge ability [45,48]. Additionally, complexation of COOH/OH-rich LMWOAs and surface hydroxyls on SM2 via ligand exchange reactions could increase negative charges on SM2 surfaces, which made SM2 have a stronger ability to adsorb Pb ions [47,[49][50].…”

Section: Effects Of Exogenous Chemicals On the Systemmentioning

confidence: 99%

Effects of EDTA on adsorption of Cd(II) and Pb(II) by low-permeability soil minerals and on their microscopic characteristics

You¹,

Dai²,

Zhong³

et al. 2020

Preprint

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Background Ethylenediaminetetraacetic acid (EDTA) can serve as a washing agent in the remediation of low-permeability layers contaminated by heavy metals (HMs). Therefore, batch adsorption experiments, where quartz sands (SM1) and mineral mixtures (SM2) were used as low-permeability soil minerals (SMs), were implemented to explore the effects of different EDTA concentrations, pH and exogenous chemicals on the HM-SM-EDTA adsorption system. Changes in microscopic characterizes of SMs were determined by instrument analysis to investigate the mechanisms.Results As the EDTA concentration increased gradually, it gradually cut down the maximum Cd adsorption capacities of SM1 and SM2 from approximately 135 to 55 mg/kg and 2,660 to 1,453 mg/kg; and the maximum Pb adsorption capacities of SM1 and SM2 were reduced from 660 to 306 mg/kg and 19,677 to 19,262 mg/kg, respectively. When the mole ratio (MR = moles of HM ions / sum of moles of HM ions and EDTA) was closer to 0.5, the effect of EDTA was more effective; and Freundlich isotherm model fitted better to the data. It took 5 to 10 min for EDTA to begin taking its effect. EDTA worked well at pH below 7.0 and 4.0 for Cd and Pb, respectively. Low-molecular-weight organic acids (LMWOAs) affected the system mainly by bridging, complexation, adsorption site competition and reductive dissolution. Cu 2+ , Fe 2+ ions could greatly increase the Cd and Pb adsorption on SM2. There were feature changes in mineral particles including attachment of EDTA and microparticles, agglomeration, connection and smoother surfaces, making the specific surface area decrease from 16.73 to 12.59 m 2 /g.Conclusion All findings indicated that EDTA could effectively and economically reduce the HM adsorption capacity of SMs at the reasonable MR value, contact time and pH. The extent of the effects of LMWOAs and exogenous metal ions on the HM-SM-EDTA system depended on the synthesis of diverse effects and the selectivity of EDTA, respectively. EDTA reduced the HM adsorption capacity of SMs not only by complexation with HM ions, but also decreasing SSA and blocking active sites. Hence, the acquired insight from the presented study can help to promote the remediation of contaminated soil and groundwater.

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“…The Lower Volga region (Russia) was characterized by Selenium (Se), Iodine (I), and Cobalt (Co) deficiency in soil and pasture plants that form the core of sheep's and goats' feed (Kabata-Pendias, 2001;Bevis, 2015;Dinh et al, 2017;Ermakov, 2017). The largest amount of Se was found in May (0.051 ± 0.006 mg/kg), and the smallest in the autumn (0.024 ± 0.003 mg/kg).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Hematological and Metabolic Parameters in Small Ruminants with Trace Elements Deficiency under Different Biogeochemical Conditions.

Vorobyov¹,

Vorobyov²,

Polkovnichenko³

et al. 2019

jwpr

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In the present study soil, water, pasture plants, organs and tissues of crossbred sheep of the Soviet Aksaray and Zaanen German White Improved goats were analyzed for their Selenium (Se), Iodine (I), Cobalt (Co), zinc, copper, and manganese content in the Lower Volga region. The biogeochemical situation of terrestrial ecosystems of the Lower Volga region was characterized by Se, Co, and I deficiencies in soil, water, pasture plants, and feed of crossbred sheep of the Soviet Aksaray and Zaanen German White Improved goats. The deficiency of these trace elements in small ruminants had been compensated by changes in hematological parameters include high Red Blood Cell (RBC) and White Blood Cell (WBC) and biochemical parameters. Meanwhile, the analyzed trace elements in the organs and tissues of crossbred sheep (n = 6) and Zaanen German white improved goats (n = 6) demonstrated that goats had lower amounts of Se (0.0136 ± 0.002 mg/kg), I (0.19 ± 0.01mg/kg), and Co (0619 ± 0.03 mg/kg) compared to sheep. The animals were recorded with a decrease in alkali reserve, the content of total protein and lipids, vitamins A, E, C, B12, total calcium, and inorganic phosphorus, increase in glucose, conjugated dienes and malonic di-aldehyde in the blood, and functional insufficiency of the antioxidant protection system.

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Role of organic acids on the bioavailability of selenium in soil: A review

Cited by 112 publications

References 285 publications

A Summary of New Findings on the Biological Effects of Selenium in Selected Animal Species—A Critical Review

A Summary of New Findings on the Biological Effects of Selenium in Selected Animal Species—A Critical Review

Effects of EDTA on adsorption of Cd(II) and Pb(II) by low-permeability soil minerals and on their microscopic characteristics

Evaluation of Hematological and Metabolic Parameters in Small Ruminants with Trace Elements Deficiency under Different Biogeochemical Conditions.

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