Selenium in soil humic acid

Kang, Youngnam; Yamada, Hidekazu; Kyuma, Kazutake; Hattori, T.; Kigasawa, Shigeru

doi:10.1080/00380768.1991.10415034

Cited by 40 publications

(43 citation statements)

References 9 publications

(5 reference statements)

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“…Many of the functional groups present in humic acids can act as ligands producing thus humic-metallic complexes. These bonds can be entered by Zn, Cu, Mn, Au, Fe, Al, Se, and also heavy metals such as Cd and Pb (Boyd et al, 1981;Senesi et al, 1985;König et al, 1986;Kang et al, 1991;Livens, 1991). …”

Section: Resultsmentioning

confidence: 99%

The effect of humic acid on zinc accumulation in chicken broiler tissues

Herzig¹,

Navrátilová²,

Totušek³

et al. 2009

Czech J. Anim. Sci.

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Thirty-six selected male chickens were allocated into four groups C, HA, ZN, ZN + HA, and the experiment was initiated after 4 days of an adaptation period. Group C was fed a complete feed mixture without supplements. Group HA was fed the same diet with 500 mg of humic acid per chicken and day. Group ZN was loaded with 240 mg Zn (as 600 mg ZnSO 4 ) per chicken and day, and birds of the group ZN + HA were loaded as those of the latter group, with additional 500 mg of humic acid per chicken and day. The treatments were carried out for 10 days. Subsequently, the chickens were slaughtered and samples of liver, kidneys, leg muscles and blood were collected for Zn level assessment. The Zn levels detected in group C can be considered as the background value, found commonly in broiler chickens fed the complete feed mixtures enriched with trace elements. The following concentrations were detected (mg Zn/kg): 40.1 ± 13.4 in muscles, 81.0 ± 6.6 in kidneys, 72.2 ± 15.0 in liver, and in blood serum 1.04 ± 0.45 mg Zn/l. Increased Zn levels by 11 to 30% (P > 0.05) compared to group C were found in group HA in all tissues studied. The ten-day treatment with 600 mg ZnSO 4 (240 mg Zn/day, i.e. 2 400 mg Zn per 10 days) resulted in increased Zn levels in all investigated tissues, significantly in kidneys (P < 0.01), liver (P < 0.01) and blood serum (P < 0.01). The mean levels 430.5 ± 159.0, 149.8 ± 41.9 and 57.9 ± 22.7 mg Zn/kg, and 4.14 ± 0.9 mg/l were found in liver, kidneys, leg muscles, and blood serum, respectively. After the same treatment with zinc sulphate together with humic acid (group ZN + HA), no significant changes of Zn levels in the investigated tissues were reported. Concentrations of the selected parameters of metabolism in chickens ranged within the reference limits; significant differences between experimental and control groups (cholesterol P < 0.05; lactate P < 0.05; calcium P < 0.01) were found sporadically.

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Section: Resultsmentioning

confidence: 99%

The effect of humic acid on zinc accumulation in chicken broiler tissues

Herzig¹,

Navrátilová²,

Totušek³

et al. 2009

Czech J. Anim. Sci.

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“…(1981)). Cette étude s'inspire donc de travaux concernant l'extraction du sélénium des sols (SEBY (1994), CHAO et SANZOLONE (1989), KANG et al (1991), KANG et al (1993), YAMADA et HATTORI (1990), GUSTAFSSON et JOHNSSON (1992), WANG et SIPPOLA (1990)), ou de cendres (NlSS et al, 1993). Nous avons ainsi choisi trois types d'extradants : l'eau chaude pour la fraction soluble, un mélange phosphate d'ammonium -acide citrique pour la somme des fractions soluble et échan-geable, et la soude 2 M pour la somme des fractions soluble, échangeable et « oxydable ».…”

Section: Tableauunclassified

Mise au point de techniques analytiques pour la spéciation du sélénium dans les boues de stations d'épuration d'eaux résiduaires urbaines

Heninger¹,

Potin‐Gautier²,

Astruc³

et al. 2005

rseau

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Les stations d'épuration d'eaux résiduaires sont une des étapes du cycle du sélénium dans l'environnement et contribuent à sa redistribution dans le milieu naturel. Très peu étudié jusqu'à présent dans ces milieux, le sélénium n'en est pas moins un élément très important du point de vue écotoxicologique, sa teneur dans les boues de stations d'épuration destinées à l'épandage agricole faisant par ailleurs l'objet d'une norme.Nous avons mis au point des techniques permettant la détermination spécifique de l'élément total dans ce type d'échantillon, par minéralisation classique ou assistée par micro-ondes et dosage par Voltamétrie de Redissolution Cathodique Différentielle Pulsée (DPCSV) et Spectrométrie d'Absorption Atomique ElectroThermique (ETAAS). Le contrôle qualité a été effectué sur deux échantillons certifiés fournis par le Bureau Communautaire de Référence (BCR) : la boue CRM 145 R et la boue CRM 007.Cependant, lorsqu'on parle de risque toxicologique, il est important de s'intéresser à la détermination des différentes formes sous lesquelles cet élément peut être présent. Nous avons pour cela réalisé des extractions parallèles (spéciation de phases) du sélénium contenu dans les boues afin de déterminer quel pourcentage du sélénium total est réellement et potentiellement disponible pour les végétaux lors d'un épandage sur sol agricole. La spéciation d'espèces a été brièvement abordée dans le but de déterminer les teneurs en Se(IV) et Se(VI), espèces les plus toxiques.The great effort undertaken for about twenty years to improve the quality of surface waters has led to the construction of numerous waste water treatment plants, generating an increasing amount of sludge. Waste water and sludge treatment processes represent an important point in the hydrological cycle at which the disposal of substantial quantities of trace elements to the environment may be regulated. From the law on waste recovery and disposal in 1975 to the European guideline about wastes in 1991, the priority has been given to waste recovery and recycling. With increasing pressure to ban all sludge dumping at sea, and considering the prohibitive costs of land-filling and incineration, there is a great tendency to dispose of sludge on land (40% in 1988 to 60% in 1992).Although numerous studies have demonstrated the intrinsic value of sludge for soil amendment, given its nitrogen, phosphorus and homogeneous organic matter content, evidence has accumulated in recent years that numerous environmental problems can arise because of the presence in sludges of high amounts of certain trace elements (potentially toxic to plants and to human beings and liable to be concentrated along the food chain), among which selenium is particularly interesting.Selenium presents a complex case, as it is also an essential element for living organisms (including humans). The amendment with sewage sludge is sometimes used to increase the selenium content in crops, and afterwards in cattle, when there is a proven lack of this element in a given place. Nevertheless the ...

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“…In addition to these inorganic Se species, different organic Se species are present in soils, but factors that influence organic Se speciation have not been identified. Soluble organic Se, such as selenomethionine (C 5 H 11 NO 2 Se), methane seleninic acids (CH 3 SeOOH) and trimethyl selenium ion (Abrams and Burau, 1989;Yamada and Hattori, 1989;Abrams et al, 1990a;Tolu et al, 2011;Stroud et al, 2012;Tolu et al, 2014), and solid organic Se associated with humic and fulvic acid fractions of soil organic matter (Kang et al, 1991b;Qin et al, 2012) that is possibly present as seleno-amino acids incorporated into protein or peptides (Kang et al, 1991b), have been detected in soils. Volatile organic Se compounds, such as dimethylselenide ((CH 3 ) 2 Se) and dimethyldiselenide ((CH 3 ) 2 Se 2 ), are also formed in soils via soil microbial processes (Abu-Erreish et al, 1968;Doran and Alexander, 1977a).…”

Section: Selenium Speciation In Soilsmentioning

confidence: 99%

“…Methodology to determine Se speciation in soils has been explored intensively either using various single step soil extractions (Yamada and Hattori, 1989;Abrams et al, 1990a;Kang et al, 1991b;Gustafsson and Johnsson, 1992;Johnsson, 1992;Gustafsson and Johnsson, 1994;Alam et al, 2000;Keskinen et al, 2009;Tolu et al, 2011;Qin et al, 2012;Stroud et al, 2012) or sequential soil extractions (Chao General introduction and Sanzolone, 1989;Tokunaga et al, 1991;MacLeod et al, 1998;Mao and Xing, 1999;Wang and Chen, 2003;Hagarová et al, 2005). In general, these soil extractions represent different Se pools or Se fractions present in soils that are removed by the corresponding extractants, such as soluble Se, exchangeable Se, Se adsorbed to metal-(hydr)oxides or carbonates, and Se bound to organic matter or humic compounds, instead of specific Se species (Tokunaga et al, 1991).…”

Section: Selenium Speciation In Soilsmentioning

confidence: 99%

“…In environmental samples, organic Se species can be present as selenoamino acids, methylated compounds and selenoproteins (Pyrzyńska, 2002 (Abrams and Burau, 1989;Yamada and Hattori, 1989;Abrams et al, 1990a;Stroud et al, 2012;Tolu et al, 2014). In the solid organic matter, organic Se is present as Se associated with humic acids and fulvic acids, which may be in the forms of selenoamino acid incorporated into protein or peptides (Kang et al, 1991b). Through microbial activity, organic Se can be transformed into inorganic forms upon mineralization, and vice versa inorganic Se, mainly selenite (+4) can be reduced and incorporated into soil organic matter (Gustafsson and Johnsson, 1994).…”

Section: Introductionmentioning

confidence: 99%

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Selenium speciation and bioavailability in Dutch agricultural soils: the role of soil organic matter

Supriatin¹

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Selenium in soil humic acid

Cited by 40 publications

References 9 publications

The effect of humic acid on zinc accumulation in chicken broiler tissues

The effect of humic acid on zinc accumulation in chicken broiler tissues

Mise au point de techniques analytiques pour la spéciation du sélénium dans les boues de stations d'épuration d'eaux résiduaires urbaines

Selenium speciation and bioavailability in Dutch agricultural soils: the role of soil organic matter

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