Inducible mineralization of TSA (4-toluenesulphonate) by Comamonas testosteroni T-2 is initiated by a secondary transport system, followed by oxygenation and oxidation by TsaMBCD to 4-sulphobenzoate under the regulation of TsaR and TsaQ. Evidence is presented for a novel, presumably two-component transport system (TsaST). It is proposed that TsaT, an outer-membrane porin, formed an anion-select...

One of the promising types vegetable raw materials in Ukraine, which can be used for development resource-saving technologies, are oils. The products their processing serve as obtaining surface-active substances, production food additives, pharmaceutical products, detergents and cosmetics, biofuels additives. most common oil Ukraine is sunflower, which, like other oils, processed to form fatty ...

Developing the bio-based barrier material to substitute petroleum-based one is trend in functional packaging applications. Utilization of abundantly underappreciated bark biomass attractive from sustainability point view; however, an upgraded approach required maximize performances lignin-containing cellulose nanofibril (LCNF) films willow bark. Herein, hot water extraction (HWE) and microfluid...

Asymmetric telechelic α-hydroxyl-ω-(carboxylic acid)-poly(ε-caprolactone) (HA-PCL), α-hydroxyl-ω-(benzylic ester)-poly(ε-caprolactone) (HBz-PCL) and an asymmetric telechelic copolymer α-hydroxyl-ω-(carboxylic acid)-poly(ε-caprolactone-co-γbutyrolactone) (HA-PCB) were synthesized by ring-opening polymerization of εcaprolactone (CL). CL and CL/γ-butyrolactone mixture were used to obtain homopolym...

The increase in total Kjeldahl nitrogen (TKN) concentrations is correlated with increases cyanobacterial bloom biomass. Standard methods for the measurement of TKN are tedious, costly, time-consuming and involve use hazardous catalysts, such as mercury, high temperatures significant amounts toxic acids bases. Since plays a pivotal role influencing algal blooms, there an urgent need to develop s...

The synthesis of 4-styryl-substituted 2,3,8-trioxabicyclo[3.3.1]nonanes, peroxides with the core structure of the bioactive 1,2,4-trioxane ring, was conducted by a multistep route starting from the aryl methyl ketones 1a-1c. Condensation and reduction/oxidation delivered enals 4a-4c that were coupled with ethyl acetate and reduced to the 1,3-diol substrates 6a-6c. Highly diastereoselective phot...

A novel means of combining thin-layer chromatography (TLC) with laser desorption/ionization mass spectrometry using a liquid matrix is proposed. Surface-assisted laser desorption/ionization (SALDI) mass spectrometry, which uses a mixture of a micrometer-sized carbon powder (graphite or activated carbon, the SALDI solid) and 15% sucrose/glycerol, dissolved in an equal volume of methanol (SALDI l...

The concept of an organic reaction between two macroscopic solid particles is investigated. Thus, we study several reactions that have been recently reported to proceed "in the solid phase" and clearly show that, in most cases, grinding the two solid reactants together results in the formation of a liquid phase. This is true both for catalytic transformations (e.g., aldol condensations and olig...