APPLICATION OF NEW CHELATE AGENTS ON OILSEED FLAX

The article presents data on the effect of complex chelating agents Chelaton Extra and Chelate Zn on the oilseed flax variety Severny when grown at the field station of Russian State Agrarian University – Moscow Timiryazev Agricultural Academy. The study found that the agent Chelaton Extra increased the fiber yield better, and the agent Zn Chelate increased the seed yield by 0.7–1 c/ha and 2.4–2.5 c/ha, respectively. The agent Chelate Zn, relative to Chelaton Extra, increased proteins in seeds by 2.9–4%, lipids by 3.6–4.2%. The use of complex chelating agents increased the oil yield and the amount of unsaturated fatty acids. The essential α-linolenic (Omega 3) acid increased in the oil of the variant with Zn Chelate up to 62.2% relative to the control (55.5%). The microstructure of the shell of oil flax seeds in all variants of the experiments was smooth, without disturbances and damages. The seed nucleus has a distinct porous structure; no differences were found in the variants. Chelate Zn more affected the seed productivity and nutritional value of flaxseeds and flaxseed oil, and Helaton Extra more affected fiber yield. The authors found that the Zn Chelate agent influenced seeds’ chemical composition, promoting an increase in potassium, calcium, magnesium, sulfur, and phosphor by 1.5–5%.

STUDI TRANSPOR SENYAWA FENOL MENGGUNAKAN MEMBRAN CAIR POLIEUGENOL DENGAN PELARUT DIKLOROMETANA

Study on Phenol Compound Transport using Polieugenol Liquid Membrane with Dichloromrthane Solven Phenol is a component in waste water that is very dangerous, because it is toxic, corosif on skins and carcinogenics. It can be separated by using liquid membranes. Membrane can be a very specific filter. Liquid membrans transport technique used three phase. The phase are donor phase that contain substance to be separated, membrane phase that contains ligan in the organic solvents, and aceptore phase that contain base as release agent of ligans complex. Polyeugenol have a condition as a ligan that is capable as selective chelate agent for phenol coumpounds. In this research, polieugenol were used with dichloromethane solvents as a membrane for separating and transporting phenol separated, NaOH as release phase with variating pHs, concentrations of release phase, transport time and membrane concentrations. The result showed that liquid membrane of polieugenol in dichloromethane solvent can transport phenol at source phase pH 6.5, at optimum released concentration was 0.75 M, optimum transport times was 72 hours, and optimum membran concentrations was 1,5×10-3 with % transport was 65.2%.Keywords : Liquid membrane, polyeugenol, dichlorometane, phenol ABSTRAK Fenol merupakan salah satu komponen dalam air limbah yang sangat berbahaya, karena beracun dan bersifat korosif terhadap kulit serta karsinogenik. Fenol dapat dipisahkan dengan menggunakan membran cair. Membran dapat bertindak sebagai filter yang sangat spesifik. Teknik transpor membran cair melibatkan tiga fasa yaitu fasa donor, mengandung bahan yang akan dipisahkan, fasa membran berisi ligan dalam pelarut organik dan fasa akseptor yang berisi basa sebagai agen pelepas dari kompleks ligan.Polieugenol mempunyai syarat sebagai ligan sehingga mampu berfungsi sebagai agen pengkhelat yang selektif untuk senyawa fenol. Pada penelitian ini digunakan polieugenol dengan pelarut diklorometana sebagai membran untuk pemisahan dan transpor senyawa fenol, dan NaOH sebagai fasa pelucut dengan memvariasikan pH, konsentrasi fasa pelucut, waktu transpor dan konsentrasi membran. Hasil penelitian menunjukan bahwa membran cair polieugenol dalam pelarut diklorometana dapat mentranspor fenol pada pH fasa sumber optimum 6,5, pada konsentrasi pelucut optimum 0,75 M, waktu transpor optimum 72 jam, dan pada konsentrasi membran optimum 1,5×10-3 dengan % transpor 65,2%.Kata kunci : membran cair, polieugenol, diklorometana, fenol

Effects of Copper Ions and Chelate Agent on Output of Ascorbic Acid Fuel Cell

A catalyst plays an important role in fuel cell because of promotion of chemical reaction for room temperature type fuel cell. In general, platinum is adopted as a catalyst even though it is very expensive. An ascorbic acid aqueous solution is able to react without catalyst for the oxidation reaction. At first, authors made sure of generation of the electric output using ascorbic acid for fuel without the catalyst. Next, we were able to increase the electric output with adding to metal ions to ascorbic acid aqueous solution. Finally, high and stable electric output was obtained by using the chelating agent.

Synthesis and Luminescent Properties of Ce3+-Activated SrGa2O4 and Sr(Ga-Al)2O4

Ce3+-doped SrGa2O4 was synthesized by citrate-gel with citric acid as chelate agent and sintered in a slightly reduced atmosphere of hydrogen and nitrogen mixture. It was found that the phosphor synthesized by citrate-gel can be sintered at relatively lower temperature. The luminescent properties of Ce3+-activated SrGa2O4 and the complex Sr(Ga-Al)2O4 were studied.

Significance of supplementing microelements in preventing metabolic disorders in cattle

Inadequate diet can result in a series of undesired occurrences in cattle production, marked as nutritive diseases. In a certain number of cases there is a clearly defined deficiency of certain nutritive matter, with a typical clinical picture and recognizable symptoms. In a far greater number of cases, chronic conditions occur as a result of so-called graphic deficits, when the deficiency of certain components is so small that signs of deficiency develop over a longer time period. Such cases are at first accompanied by non-specific symptomatology, detection and prevention are much more difficult, while resulting damages in cattle production are substantial. The work gives a brief survey of the most important microelements added to cattle diet - iron, copper, manganese, zinc, iodine selenium, cobalt, and chromium. In addition to elementary data in connection with the contents of certain microelements in the organism of the animal the physiological role, natural sources, manner and place of resorption in the organism, and mechanisms of elimination, special attention is paid to symptoms of deficiency and sufficiency, and daily requirements in the ruminant diet. The conclusions direct the reader to several possible sources of mineral matter, with special emphasis on organically - bound microelements in the form of chelates - complexes swith one or more stable heterocyclic amino acid rings. Commercial mineral additives are described as proteinates, and bioplexes are mixes of amino acids and peptides. Chelate forms have been demonstrated aas very successful in stress situations and in diseased animals, when the organism exhibits increased needs, and the ability of feed utilization is reduced. Contrary to non-organic forms, which only temporarely increase concentration in blood, chelate forms secure considerably longer maintenance of the necessary concentration. Having in mind also the increased need of damaged tissue for certain amino acids their correct selection as a chelate agent can additionally stimulate the resorption of mineral matter. Moreover, the fact that retention and the biological half-life of mineral matter taken in through chelates are considerably longer than with conventional supplementation, it is clear that the end consumers have at their disposal a powerful and reliable method of securing the necessary microelements. By following theoretical knowledge about the necessary quantities in certain stages of breeding and production the problems of microelement deficiency, and thus consequently the resulting negative effects, can be prevented and avoided by choosing chelate forms.