Abstract
This study investigated the interactions of CrIII and CrVI present as free metal ions or as organic CrIII (Cr-L) with a Ca-polygalacturonate (Ca-PG) network. Ca-PG networks were treated with solutions of chromium (CrIII and CrVI) at different concentrations at three different pH values. The Cr-L complex were obtained by water extraction of hydrolysed leather. The CrVI had almost no interaction with the Ca-PG networks, whereas CrIII as a free metallic ion was strongly retained by the network. The calculated Langmuir adsorption isotherms showed a twofold increase in maximum CrIII adsorption but a decrease in the affinity of the metal with the Ca-PG networks. This would indicate that the different chromium species, i.e. CrIII and its hydrolytic species, interact in a different way with the polygalacturonate chains. In addition, thermal analysis showed that CrIII sorption modified the structure of the network. These modifications were reduced, and thermal stability increased if Ca-PG adsorbed Cr-L or L. Furthermore, the treatment of Ca-PG with hydrolysed leather water extract-reduced CrIII sorption by 94%. The hydrolysed leather fraction immobilized onto the Ca-PG networks probably consisted of peptides and could therefore represent an important source of organic N.
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References
Adriano DC (2001) Chromium. In: Adriano DC (ed) Trace elements in terrestrial environments: biogeochemistry, bioavailability, and risks of metals. Springer, New York, pp 315–348
Barceló J, Poschenrieder C (1997) Chromium in plants. In: Canali S, Tittarelli F, Sequi P (eds) Chromium environmental issues. Franco Angeli, Milan, Italy, pp 101–130
Branca M, Dessi A, Kozlowski H, Micera G, Swiatek J (1990) Reduction of chromate ions by glutatione tripeptide in the presence of sugar ligands. J. Inorg Biochem 39:217–226
Ciavatta C, Gessa C (1997) Chromium-containing fertilizers and their production. In: Canali S, Tittarelli F, Sequi P (eds) Chromium environmental issues. Franco Angeli, Milan, Italy, pp 61–68
Cunico R, Mayer AG, Wehr CT, Sheehan TL (1986) High sensittivity amino acids analysis using a novel automated precolumn derivatization system. Biochromatography 1:6–14
Deiana S, Gessa C, Usai M, Piu P, Seeber R (1991) Analytical study of the reduction of chromium (VI) by D-galacturonic acid. Anal Chim Acta 248:301–305
Deiana S, Manunza B, Palma A, Premoli A, Gessa CE (2001) Interaction and mobilization of metal ions at the soil–root interface. In: Gobran GR, Wenzel WW, Lombi E (eds) Trace elements in the rhizosphere. CRC, Boca Raton, FL, pp 127–148
Foster RC (1981) The ultrastrucuture and histochemistry of the rhizosphere. New Phytol 89:263–273
Foster RC (1982) The fine structure of the epidermal cell mucilages of roots. New Phytol 91:727–740
Foster RC (1986) The ultrastructure of the rhizoplane and rhizosphere. A review. Phytopathology 24:211–234
Hayes RJ (1980) Ion exchange properties of roots and ionic interactions within the root apoplasm: their role in ion accumulation by plants. Bot Rev 46:75–66
Katz SA, Salem H (1993) The toxicology of chromium with respect to its chemical speciation: a review. J Appl Toxicol 13:217–224
Marin N, Krzton A, Koch A, Robert D, Weber JV (1999) Etude du Comportement Thermique de la Cellulose par Spectroscopie Infra Rouge: II. Analyse in situ des évolutions spectrales entre 25 et 450. °. C. J Therm Anal Calorim 55:765–772
Mimmo T, Marzadori C, Francioso O, Deiana S, Gessa C (2003) Effects of aluminium sorption on a ca-polygalacturonate network used as a soil-root interface model. Biopolymers 70:655–661
Mimmo T, Marzadori C, Montecchio D, Gessa C (2005) Characterization of Ca-and Al-pectate gels by Thermal Analysis and FT-IR spectroscopy. Carbohydr Res 340:2510–2519
Nielsen PM, Petersen D, Dambmann C (2001) Improved method for determining food protein degree of hyrolysis. J Food Sci 66:642–646
Skeffington RA, Sherry PR, Peterson PJ (1976) Chromium uptake and transport in barley seedling (Hordeum vulgare L.). J Exp Bot 25:785–797
Yau WW, Kirkland JJ, Bly DD (1979) Modern size exclusion chromatography. Wiley, New York
Zayed AM, Terry N (2003) Chromium in the environment: factor affecting biological remediation. Plant Soil 249:139–156
Acknowledgements
This project was funded by MiUR (Ministero dell’Istruzione dell’Università e della Ricerca) PRIN 2004 (Grant number: 2004070459_003).
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Mimmo, T., Cavani, L., Reggiani, R. et al. Interactions of organic and inorganic chromium species with Ca-polygalacturonate. Biol Fertil Soils 44, 521–526 (2008). https://doi.org/10.1007/s00374-007-0238-2
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DOI: https://doi.org/10.1007/s00374-007-0238-2