The aim of this study was to search vegetable oil bleaching abilities 30 different adsorbent materials placed into four groups (natural clay, acid-activated natural synthetic adsorbent, metal-organic frames). After treatment against control sample, color (L, a*, b* values), weight loss (%), free fatty acidity (FFA), peroxide value (PV), and the specific extinctions K232 K270 were measured. Base...

A preparative method for the isolation of oligosaccharide peptides from lysozyme digests of Micrococcus Zysodeiklicus cell walls is described. The method involves chromatography on Dowex 1, gel filtration on Bio-Gel P-4 columns, and chromatography on Dowex 50. Four glycopeptides designated as GP-1, GP-la, GP-2, and GP-4 were isolated and their structures investigated by chemical and enzymatic t...

A preparative method for the isolation of oligosaccharide peptides from lysozyme digests of Micrococcus Zysodeiklicus cell walls is described. The method involves chromatography on Dowex 1, gel filtration on Bio-Gel P-4 columns, and chromatography on Dowex 50. Four glycopeptides designated as GP-1, GP-la, GP-2, and GP-4 were isolated and their structures investigated by chemical and enzymatic t...

The uptakes of molecular iodine and bromine by both strong acid cation (Dowex 50W-X4 and X8) and strong base anion (Dowex 1-X4 and X8) exchange resins have been studied in aqueous solutions at 25 degrees C. An empirical formula for the amount of solute taken up by the resin in mmol per gram of dry resin, Q, as a function of the solute concentration in M (mol dm(-3)), C, was derived. Direct prop...

PEMISAHAN DAN ANALISIS 137Cs DALAM LARUTAN ELEMEN BAKAR UJI U3Si2/Al DENSITAS 4,8 gU/cm3 DENGAN BURNUP 60% MENGGUNAKAN METODE PENUKAR KATION. Telah dilakukan pemisahan dan analisis isotop cesium dalam PEB densitas4,8 kode CBBJ 250 burnup dengan metode penukar kation menggunakan zeolit Lampung resin Dowex. Tujuan penelitian adalah untuk mengetahui berat di densitas 60%. Potongan pada bagian Bott...

There is clear evidence that plantparasitic nematodes secrete numerous orgallic substances (4, 5). As a part of our studies of root exudates in Meloidogyne incognita-infected and uninfected tomato plants (8), a quali tat ive and quanti tat ive identification was made of the amino acids and carbohydrates secreted by larvae of M. ineognita. Second-stage larvae of M. incognita (Kofoid and White) C...

Given the increasing demand for nickel (Ni) in Li-ion battery industry, agromining chain of processes, based on phytomining Ni combined with hydrometallurgy, has potential to form an important source Ni. Currently, plants grown Ni-rich soils (in this case Odontarrhena chalcidica), having hyperaccumulated Ni, are ashed, and is transferred from ash solution by sulfuric acid leaching. This work fo...

The method of Bruton and Hartley for the isolation of short NH2-terminal sequences of peptides has been applied to /3-galactosidase. Maleyl-P-galactosidase was hydrolyzed with thermolysin and the digest was acidified. After passage through Dowex 50, Thr-Met was obtained from the eluate. This procedure has been extended. For the isolation of a larger NH&erminal peptide, maleyl-protein was treate...

The effects of the functional groups and structures of two different resins, weak base/macroporous and strong base/gel type, Purolite A170 and Dowex 21K on the adsorption properties of Re(VII) ions were investigated experimentally and described by the isotherm, kinetic, and thermodynamic modeling. In this regard, four widely used adsorption isotherm models including Langmuir, Freundlich, Temkin...

The work is devoted to the development and study of antenna array based on Fabry-Perot cavity in radio band. element form a with circular polarization proposed, semitransparent mirror realized two-layer frequency-selective surface (FFS). A power divider thin waveguides feed size 2x8 was developed. А model manufactured. made by laser cutting sheet aluminum, resonator layer photolithography. tota...