64364-41-6Relevant academic research and scientific papers
The inhibitory effect of the amino acid complexes of Zn(II) on the growth of Aspergillus flavus and aflatoxin B1 production
Daryanavard, Marzieh,Jarrah, Nafiseh
, p. 1053 - 1060 (2019)
The zinc(II) complexes with amino acids as the ligands, Zn(Gln)2 (1), [Zn(Arg)2(OAc)]OAc·3H2O (2), Zn(His)2 (3), Zn(Gly)2 (4), Zn(Met)2 (5), and Zn(Cys)2 (6) (Gln = glutamine, Arg = arginine, His = histidine, Gly = glycine, Met = methionine, and Cys = cysteine) have been synthesized in aqueous solutions and characterized by elemental analysis and spectroscopic methods. In addition, the solid-state structure of 1 and 2 has been determined by single-crystal X-ray crystallography. X-ray analysis revealed that the central Zn(II) atom is six- and five- coordinated in 1 and 2, respectively. Furthermore, the antifungal activity of the synthesized complexes was investigated against the Aspergillus flavus fungus. The aqueous solutions of the zinc(II) amino acid complexes at various concentrations were added to the potato dextrose agar (PDA) medium containing spores of Aspergillus flavus, and the mixtures were then incubated at 25–30?°C for 6 days. The aflatoxin B1 produced in vitro was measured using enzyme-linked immunosorbent assay (ELISA). The increasing concentration of these complexes decreased the growth of Aspergillus flavus and aflatoxin B1 production, consequently. Furthermore, the results showed that the synthesized Zn(II) amino acid complexes are more antifungal active than the zinc(II) ion.
METHIONINE-METAL CHELATE AND MANUFACTURING METHOD THEREOF
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Paragraph 0046, (2020/09/09)
The present disclosure relates to a preparation method of a methionine-metal chelate, and the methionine-metal chelate, which is prepared by first reacting Ca(OH)2 and methionine and adding metal nitrate, can be widely used as feeds and feed additives.
METHIONINE-METAL CHELATE AND MANUFACTURING METHOD THEREOF
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Paragraph 0044, (2020/06/08)
The present disclosure relates to a preparation method of a methionine-metal chelate, and the methionine-metal chelate, which is prepared by first reacting Ca(OH)2 and methionine and adding metal chloride salts, can be used as feeds and feed additives.
Process for the preparation of an organozinc derivative and its use in a zinc-containing composition as nutritional supplement
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Page/Page column 5, (2008/06/13)
A method for the production of organic zinc compounds (I), especially for use as food supplements, involves heating a solvent-free mixture of zinc oxide and organic acid (II), especially amino-acid, to a temperature (T) below the decomposition temperature of (II) by heat input or irradiation and keeping the mixture at or below T during the reaction time. An independent claim is also included for zinc-containing food supplements for human or animal use, containing an at least 4-coordinated or di-substituted organic zinc compound and some zinc oxide.
