نتایج جستجو برای: ethylene diamine
تعداد نتایج: 32040 فیلتر نتایج به سال:
Calcium disodium ethylenediaminetetraacetate (Calcium Disodium EDTA, C10H12CaN2Na2O8.2H2O) is a derivative of EthylenediamineTetraacetic Acid and is an approved food additive (E385). It is used as preservative, sequestrant, flavouring agent, and colour retention agent in foods. As a drug it is used for the reduction of blood and mobile depot lead in the treatment of acute and chronic lead poiso...
This study is aimed to examine citric acids as a potential chelating agent decrease colloidal impurities in patchouli oil improve its quality. It covers colour, specific density, refractive index, acid value, iron content, oleoresin and alcohol. Complete Randomized Design with factorial design used two factors repeated 3 times. Factors are (1) concentration consists of 0.25%, 0.5%, 1.0% 1.50% (...
0020-1693/$ see front matter 2011 Elsevier B.V. A doi:10.1016/j.ica.2011.07.031 ⇑ Corresponding author. Tel.: +39 49 8275172; fax: E-mail address: [email protected] (D. Mo The polymeric [PdCl(dithiocarbamate)]n complexes, in which the ligand ion is dimethyldithiocarbamate (DMDT), pyrrolidine dithiocarbamate (PyDT, (CH2)4NCS2 ) and sarcosine ethyl ester dithiocarbamate (ESDT, EtO2CCH2N(CH...
We have recently presented evidence that diamine oxidase is rcsponsiblc for a portion of the metabolism of histamine in several species (1, 2). This evidence is largely based on the alteration of histamine metabolism produced by compounds which are known to inhibit diamine oxidase in vitro. The inhibitors used were isonicotinylhydrazine (3) and aminoguanidine. The latter is reported to be the m...
Polyamines, such as spermidine (Spd) spermine (Spm) and their direct precursor, the diamine putrescine (Put) are vital essential aliphatic amines which also present in plants. Although ethylene polyamines involved fruit ripening, genes coding them must take part other biosynthetic pathways. In play an important role development of salt stress tolerance, responses for biotic abiotic stresses. Ex...
A FUNDAMENTAL DIFFICULTY in estimating calcium in serum by photometry arises from the fact that the normal range is narrow relative to the concentration of calcium. In the cases of sodium and chloride which also possess narrow normal ranges, the automation problem has been approached in two different ways. For sodium the Technicon Flame Photometer incorporates an electrical range expander. In t...
Diamine oxidase is continuously released from the intestinal mucosa and carried to the circulation by the lymphatics. The effect of nutrients on this release was examined. Rats were prepared with duodenal and intestinal lymph cannulas. Test mixtures of lipid emulsions containing triolein, oleic acid, or tricaprylin and solutions of carbohydrate and protein were infused into the duodenum. The en...
The synthesis of the new potentially hexadentate ligands N,N'-bis(2,2'-bipyridin-6-ylmethyl)butane-1,4-diamine (bmbu), N,N'-bis(2,2'-bipyridin-6-ylmethyl)pentane-1,5-diamine (bmpt) and N,N'-bis(2,2'-bipyridin-6-ylmethyl)octane-1,8-diamine (bmot) from the condensation of 2,2'-bipyridine-6-carbaldehyde with the appropriate diamine (butane-1,4-diamine, pentane-1,5-diamine and octane-1,8-diamine, r...
Increased plasma histamine levels were associated with significantly lowered diamine and type B monoamine oxidase activities in platelet-rich plasma of atopic eczema (AE) patients. The diamine oxidase has almost normal cofactor levels (pyridoxal phosphate and Cu(2+)) but the cofactor levels for type B monoamine oxidase (flavin adenine dinucleotide and Fe(2+)) are lowered. The biogenic amines pu...
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