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Copyright of Advances in Hygiene & Experimental Medicine / Postepy Higieny i Medycyny Doswiadczalnej is the property of Sciendo and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Abstract: The surface tension, σ, of binary mixtures of 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide [BMIm][NTf2] with tetrahydrofuran (oxolane, thf), acetonitrile, dimethylsulfoxide ((methylsufinyl)methane, dmso) and of 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl) imide [EMIm][NTf2] with dimethylsufoxide was measured between (293.15 and 313.15)K using the pendant drop method. On the basis of experimental σ values and activity coefficients of solutes in their solutions with ionic liquid obtained from vapor pressure measurement, Gibbs excess surface concentrations of thf, acetonitrile or dmso in mixtures with [BMIm][NTf2] or [EMIm][NTf2] were determined. The results are discussed in terms of possible interactions between ILs and aprotic polar substances. [Copyright &y& Elsevier]

Acousticproperties of three (1-ethyl-, 1-butyl-, and 1-octyl-)1-alkyl-3-methylimidazolium bis[(trifluoromethyl)sulfonyl] imide room-temperatureionic liquids are reported and discussed. The speeds of sound in RTILswere measured as a function of temperature in the range 288–323K by means of a sing around method. The densities and isobaric heatcapacities were determined from 288.15 to 363.15 K and from 293.15to 323.15 K, respectively. The related properties, like isentropicand isothermal compressibilities, isobaric coefficients of thermalexpansion, molar isochoric heat capacities, and internal pressures,were calculated. It was found that for some ionic liquids, temperaturedependence of isobaric coefficients of thermal expansion is smalland negative. All investigations were completed by the ultrasoundabsorption coefficient measurements in 1-ethyl- and 1-octyl-3-methylimidazoliumbis[(trifluoromethyl)sulfonyl] imide as a function of frequency from10 to 300 MHz at temperatures 293.15–298.15 K. The ultrasoundabsorption spectra indicate relaxation frequencies in the megahertzrange. [ABSTRACT FROM AUTHOR]

Summary: The quality of essential oils (EOs) was dependent on the optimised methods of drying. The highest yield of EOs was noted in plants elicited with 0.1% yeast extract (YE) and dried with the traditional method (1.4 mL 100 g dw−1); it was over twice as high as the yield of the control sample (0.58 mL 100 g dw−1). (Z)‐ligustilide, α‐terpinyl acetate and β‐phellandrene were the main compounds identified in the samples. The most effective antioxidant activity was exhibited by the sample obtained from plants elicited with 0.1% YE and subjected to freeze‐drying. The highest RP and LPO inhibition were determined in samples obtained from plants subjected to jasmonic acid (JA) elicitation and freeze‐drying (1.85 and 1.02 μL mL−1 respectively). The use of 0.1% JA and microwave‐drying was the most effective for inhibition of LOXI activity. The highest acetylcholinesterase inhibition was noted in the freeze‐dried sample obtained from plants elicited with YE (86.39 kIU mL−1). The samples exhibited the highest antibacterial activity against L. monocytogenes BBA‐2660. [ABSTRACT FROM AUTHOR]

An anamorphic Bjerkandera adusta CCBAS 930 strain isolated from soil was found to decolorize two anthraquinonic dyes: Remazol Brilliant Blue R and Poly R-478. The reduction in the level of phenolic compounds in liquid B. adusta cultures containing RBBR and Poly R-478 was correlated with decolorization of studied dyes, which suggested their biodegradation. It was shown that this process was coupled with induction of secondary metabolism (idiophase) and peak peroxidase activity in culture medium, and the appearance of aerial mycelium. Decolorization of dyes depended on the presence of glucose (cometabolism). [ABSTRACT FROM AUTHOR]

Abstract  The densities of propan-2-ol + pentan-1-ol, + hexan-1-ol, + heptan-1-ol, + octan-1-ol + nonan-1-ol and speeds of sound in propan-2-ol + pentan-1-ol, + heptan-1-ol, + nonan-1-ol have been measured over the whole composition range at 298.15 K. Excess molar functions determined from the experimental data have been plotted as functions of composition. The excess molar volumes have been interpreted on the basis of the Symmetrical Extended Real Associated Solution Model (S-ERAS). [ABSTRACT FROM AUTHOR]

• αNF and βNF enhance the TCS-stimulated effects on LDH release and caspase-3 activity. • αNF and βNF attenuate TCS-stimulated effects on ROS. • αNF inhibits XO activity more strongly than quercetin. Triclosan (TCS) is commonly used worldwide in a range of personal care and sanitizing products. A number of studies have revealed the presence of TCS in human tissues. It has recently been shown that TCS can interact with AhR in mouse neurons and the one of its effects is the stimulation of reactive oxygen species (ROS) production. Reactive oxygen species perform a wide spectrum of functions in neuronal cells, where they are generated as by-products of cellular metabolism. Therefore the aim of the study was to investigate effects of two synthetic naphthoflavones, the beta-naphthoflavone (βNF) and alpha-naphthoflavone (αNF), well known agonist and antagonist of AhR on TCS-stimulated cytotoxicity, apoptosis and ROS production in mouse primary cortical neurons in vitro cultures. The results showed that both agonist (βNF) and antagonist (αNF) of AhR enhanced the LDH release and caspase-3 activity stimulated by TCS. Interestingly, both naphthoflavones decreased the TCS-stimulated ROS production, however, they showed no scavenging properties as revealed by ABTS•+ and DPPH• methods. What's more, both βNF as well as αNF inhibited the activity of xanthine oxidase (XO) stimulated by TCS. Thus, we can assume that αNF or βNF act in a competitive way over TCS and inhibit its effect on antioxidant enzyme activity. [ABSTRACT FROM AUTHOR]

The aim of this study was to evaluate of possibility of biotransformation and toxicity effect of monoanthraquinone dyes in cultures of Bjerkandera adusta CCBAS 930. Phenolic compounds, free radicals, phytotoxicity (Lepidium sativum L.), ecotoxicity (Vibrio fischeri) and cytotoxicity effect were evaluated to determine the toxicity of anthraquinone dyes before and after the treatment with B. adusta CCBAS 930. More than 80% of ABBB and AB129 was removed by biodegradation (decolorization) and biosorption, but biodegradation using oxidoreductases was the main dye removing mechanism. Secondary products toxic to plants and bacteria were formed in B. adusta strain CCBAS 930 cultures, despite efficient decolorization. ABBB and AB129 metabolites increased reactive oxygen species (ROS) production in human fibroblasts, but did not increase LDH release, did not affect the resazurine reduction assay and did not change caspase-9 or caspase-3 activity. Image 1 • ABBB and AB 129 dyes were toxic to V. fischeri bacteria, L. sativum L. seeds and BJ skin fibroblast. • Initial 0.01% dyes caused apoptosis by mechanism associated with caspase-9 and -3 activities. • Bioremoval of 0.01% ABBB and AB 129 are related to activity of oxidoreductases. • Post-culture liquids of ABBB and AB129 did not activate the apoptosis, but strongly increased ROS. • After treatment by B. adusta CCBAS 930, ABBB and AB129 are less toxic to human fibroblast cell. [ABSTRACT FROM AUTHOR]