1997
DOI: 10.1016/s0003-2670(96)00633-2
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Evaluation of selective uptake of selenium (Se(IV) and Se(VI)) and antimony (Sb(III) and Sb(V)) species by baker's yeast cells (Saccharomyces cerevisiae)

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Cited by 81 publications
(45 citation statements)
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“…For comparison purposes, fundamental studies of accumulation of heavy metals should be carried out in buffered solutions. Searching in the literature for the pH conditions and pH buffers usually used in metal uptake studies by S. cerevisiae, we found that although many works (Norris and Kelly, 1977;Gadd and Mowll, 1983;Kessels et al, 1987;Avery and Tobin, 1992;Lin et al, 1993;Volesky et al, 1993;Brady and Duncan, 1994a,b;Pérez-Corona et al, 1997;Gadd and Laurence, 1996) describe the use of a pH buffer, there are also other ones recently published (Engl and Kunz, 1995;Singleton and Simmons, 1996;Omar et al, 1997;Suh et al, 1998a,b), where no pH buffer was used. However, it is important that the pH buffers be chosen with caution, since they can be simultaneously complexing agents, and appreciable amount of heavy metals can be bound by these compounds, reducing the extent of metal uptake by the cells.…”
Section: Discussionmentioning
confidence: 97%
“…For comparison purposes, fundamental studies of accumulation of heavy metals should be carried out in buffered solutions. Searching in the literature for the pH conditions and pH buffers usually used in metal uptake studies by S. cerevisiae, we found that although many works (Norris and Kelly, 1977;Gadd and Mowll, 1983;Kessels et al, 1987;Avery and Tobin, 1992;Lin et al, 1993;Volesky et al, 1993;Brady and Duncan, 1994a,b;Pérez-Corona et al, 1997;Gadd and Laurence, 1996) describe the use of a pH buffer, there are also other ones recently published (Engl and Kunz, 1995;Singleton and Simmons, 1996;Omar et al, 1997;Suh et al, 1998a,b), where no pH buffer was used. However, it is important that the pH buffers be chosen with caution, since they can be simultaneously complexing agents, and appreciable amount of heavy metals can be bound by these compounds, reducing the extent of metal uptake by the cells.…”
Section: Discussionmentioning
confidence: 97%
“…O micro-organismo foi utilizado com sucesso na determinação seletiva de espécies de As, Cr, Hg, Sb, Se e Cd. [24][25][26][27][28][29][30][31] Nestes métodos, o As(III), Cr(III), metilmercúrio, Sb(III), Se(IV) e Cd(II) na presença de As(V), Cr(VI), Hg(II), Sb(V), Se(VI) e Cd-metalotioneina, respectivamente, foram quantitativamente (e seletivamente) retidos pela levedura. O micro-organismo também foi utilizado para determinação de Sn(II) e Sn(IV).…”
Section: Introductionunclassified
“…Moreover, they constitute natural sorbents that can be easily produced at low cost and in high quantities. Free cells of Saccharomyces cerevisiae were successfully applied to the separation of mercury [27], selenium [28], arsenic [29] and tin species [30]. Antimony speciation by S. cerevisiae was also investigated by Perez-Corona et al [28].…”
Section: Introductionmentioning
confidence: 99%
“…Free cells of Saccharomyces cerevisiae were successfully applied to the separation of mercury [27], selenium [28], arsenic [29] and tin species [30]. Antimony speciation by S. cerevisiae was also investigated by Perez-Corona et al [28]. Nevertheless, several parameters that strongly affect binding rate and/or efficiency were not varied during optimization process or were varied in an inadequate range of values.…”
Section: Introductionmentioning
confidence: 99%