Volume 8
Issue 4
Environmental Development
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES
Available Online: http://www.ejpau.media.pl/volume8/issue4/abs-64.html
THE EFFECT OF DIALDEHYDE STARCH DERIVATIVES ON HEAVY METAL UPTAKE BY MAIZE
Andrzej Para1, Jacek Antonkiewicz2
1 Department of Chemistry,
University of Agriculture, Cracow, Poland
2 Department of Agricultural Chemistry,
University of Agriculture, Cracow, Poland
ABSTRACT
Disemicarbazone and dihydrazone of dialdehyde starch were efficient ligands for metal ions. They immobilized heavy metal ions in contaminated soils as assessed based on bioaccumulation of Zn, Pb(II), Cu(II), Cd, and Ni(II) in maize grown in soil polluted with those metals. Heavy metal ions in soil drastically decreased the yield of tested crop. Dialdehyde starch dihydrazone and dialdehyde starch disemicarbazone applied to polluted soil, considerably protected maize from the effect of heavy metals by their immobilization. Concentration of heavy metals in green parts and roots of maize was significantly reduced. In aerial parts of the plant, particularly, uptake of Cd and Ni(II) ions was strongly inhibited whereas in roots, the derivatives offered better uptake control for Cu(II) and Pb(II) ions than for the other metal ions. Starch dialdehyde dihydrazone was more efficient immobilizer than corresponding disemicarbazone.
Key words: heavy metal immobilization, hydrazone, oxidized starch, semicarbazone, soil remediation.
Andrzej Para
Department of Chemistry,
University of Agriculture, Cracow, Poland
Al. Mickiewicza 21, 31-120 Cracow, Poland
phone: ( 48-12) 662-43-39
fax (48-12) 662-43-35
email: rrpara@cyf-kr.edu.pl
Jacek Antonkiewicz
Department of Agricultural Chemistry,
University of Agriculture, Cracow, Poland
Al. Mickiewicza 21, 31-120 Cracow, Poland
Responses to this article, comments are invited and should be submitted within three months of the publication of the article. If accepted for publication, they will be published in the chapter headed 'Discussions' and hyperlinked to the article.