Biotechnological application of homo- and heterotrinuclear iron(III) furoates for cultivation of iron-enriched Spirulina

• Published in: Inorganica Chimica Acta Vol. 373; no. 1; pp. 167 - 172
• Main Authors: Melnic, Silvia, Prodius, Denis, Simmons, Charles, Zosim, Liliana, Chiriac, Tatiana, Bulimaga, Valentina, Rudic, Valeriu, Turta, Constantin
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 15-07-2011
• Subjects: Iron(III) furoates; Mössbauer spectroscopy; Spirulina platensis; Iron(III) furoates; Spirulina platensis; Mössbauer spectroscopy
• ISSN: 0020-1693; 1873-3255
• DOI: 10.1016/j.ica.2011.04.011

New trinuclear iron(III) furoates with the general formula [Fe
3O(α-fur)
6(R–OH)
3]
X, where α-fur
C
4H
3OCOO, R
=
CH
3 (
1), C
2H
5 (
2),
n-C
3H
7 (
3),
n-C
4H
9 (
4), X
=
NO
3
− (
1–
4); [Fe
3O(α-Fur)
6(DMF)(CH
3OH)
2]NO
3 (
5); [Fe
3O(α-Fur)
6(H
2O)(CH
3OH)
2]Cl (
6); [Fe
2MO(α-Fur)
6(L)(H
2O)
2], where L
=
THF (
7–
9), DMF (
10–12), M
=
Mn
2+ (
7,
10), Co
2+ (
8,
11), Ni
2+ (
9,
12) and [Fe
2MO(α-Fur)
6(3Cl-Py)
3], where M
=
Mn
2+ (
13), Co
2+ (
14), Ni
2+ (
15); have been prepared and investigated by Mössbauer and IR spectroscopy. The X-ray crystal structure for the
1·2CH
3OH complex indicates that it crystallizes in the monoclinic crystal system (
P2
1/
n) and has a structure typical of μ
3-O-bridged trinuclear iron(III) compounds. Coordination compounds
1,
4,
7,
8 can be used as regulators of the biochemical composition of cyanobacterium
Spirulina platensis biomass. The supplementation of these compounds, in concentrations exceeding 5–10
mg/l, increases the content of iron, amino acids, peptides and carbohydrates in
Spirulina.
[Display omitted]
► Synthesis and structural characterization of new homo- and hetero(μ
3-oxo)trinuclear iron(III) furoates. ► Coordination compounds as regulators of the biochemical composition of cyanobacterium
Spirulina platensis biomass. ► Investigation of iron transformations in Algae products using Mössbauer spectroscopy. ► Cultivation of iron-enriched
Spirulina.
New trinuclear iron(III) furoates with the general formula [Fe
3O(α-fur)
6(R–OH)
3]
X, where α-fur
C
4H
3OCOO, R
=
CH
3 (
1), C
2H
5 (
2),
n-C
3H
7 (
3),
n-C
4H
9 (
4),
X
=
NO
3
− (
1–
4); [Fe
3O(α-Fur)
6(DMF)(CH
3OH)
2]NO
3 (
5); [Fe
3O(α-Fur)
6(H
2O)(CH
3OH)
2]Cl (
6); [Fe
2MO(α-Fur)
6(L)(H
2O)
2], where L
=
THF (
7–
9), DMF (
10–
12), M
=
Mn
2+ (
7,
10), Co
2+ (
8,
11), Ni
2+ (
9,
12) and [Fe
2MO(α-Fur)
6(3Cl-Py)
3], where M
=
Mn
2+ (
13), Co
2+ (
14), Ni
2+ (
15); have been prepared and investigated by Mössbauer and IR spectroscopy. The X-ray crystal structure for the
1·2CH
3OH complex indicates that it crystallizes in the monoclinic crystal system (
P2
1/
n) and has a structure typical of μ
3-O-bridged trinuclear iron(III) compounds. Coordination compounds
1,
4,
7,
8 can be used as regulators of the biochemical composition of cyanobacterium
Spirulina platensis biomass. The supplementation of these compounds, in concentrations exceeding 5–10
mg/l, increases the content of iron, amino acids, peptides and carbohydrates in
Spirulina.