Complexes [Fe(β-diketonate)3] (β-diketonate = 2-acetylcyclopentanoate (3a), = 2-acetylcyclohexanoate (3b), = 4,4-dimethyl-1-phenyl pentanedionate (3c)) were synthesized by the reaction of FeCl3 with the respective β-diketones in presence of NaOH. The molecular structures of 3a and 3c in the s...

n-Alkylamines (CnH2n+1NH2,n=2–6) have been intercalated into orthophosphoric acid by exposing the solid to the vapour of the amines. Compounds were obtained of both the (CnH2n+1NH3)(H2PO4) and (CnH2n+1NH3)2(HPO4)·H2O formulae. In the novel monohydrogen phosphates, n-alkylamines form a bimolecu...

Biomass conversion to value-added chemicals and fuels over heterogeneous catalysts is one of the top issues in green chemistry. This review focuses on recent advances in the application of solid catalysts for producing three prominent bio-based chemicals, hydroxymethylfurfural (HMF), levulinic a...

Bio-hydrogenated diesel (BHD) produced from two different raw materials—palm oil fatty acid distillate and fatty acid methyl ester—was compared in terms of environmental impacts using the life cycle assessment (LCA) technique with the SimaPro 7.3 software. The energy consumption, greenhouse ga...

Carboxylates, hydroxamates and organic phosphoric acids are typical collectors used for rare earth mineral flotation. Carboxylates are not selective, while hydroxamates, though selective, require high concentrations to recover a significant amount of rare earth minerals. Other collectors such as...

The present study is focused on determination of the liquid-liquid equilibrium (LLE) data for (water + phosphoric acid + 2-pentanol or 4-methyl-2-pentanol) ternary systems at T = (298.2, 308.2, and 318.2) K and p = 0.1 Mpa. Despite of the structural similarity of the chosen sec-alcohols, their p...

Phosphoric acid and phosphoric acid doped polymer membranes are widely used as electrolytes in hydrogen based fuel cells operating at elevated temperatures. Such electrolytes have been explored for direct oxidation of methanol to further increase the versatility of the systems, however, with dem...

The methyl esters loss in the glycerol phase was studied for three methods of transesterification stopping by neutralisation of catalyst by (i) carbon dioxide gas, (ii) carbon dioxide gas with addition of water to accelerate the separation and (iii) exact amount of phosphoric acid. It was found ...

In this study, experimental liquid-liquid equilibria were studied for the {water + phosphoric acid + ester (n-propyl- and n-amyl acetates)} systems at T = (298.2, 308.2, and 318.2) K and p = 101.3 kPa. The studied systems exhibit type-1 binodal curves. Solubility curves data were measured by clo...

This paper focused on the removal of free fatty acids from the ester phase. Transesterification was stopped by neutralization of the catalyst (KOH) by phosphoric acid addition to the reaction mixture. The advantages of this method are a very fast separation, an ester phase that does not contain ...

Staphylococcal enterotoxin D (SED) is one of the most frequently recovered enterotoxins in staphylococcal food poisoning (SFP) outbreaks. The expression and production of SED were investigated in three ham products, i.e. boiled ham, smoked ham and dry-cured Serrano ham incubated at room temperat...

Food safety has been an established research field for many decades. This report describes the antibacterial and anti-staphylococcal enterotoxin properties of major phenolic compounds found in essential oils (cinnamaldehyde, citronellol, eugenol, geraniol and terpineol). The determination of min...

Fluorescent eggshell membrane-templated gold nanoclusters (Au-ESM) can be obtained in a facile and low-cost manner in this study. The fluorescence of the Au-ESM may be significantly quenched by mercapto-compounds and peroxidase-like activity of Au-ESM could be regulated by the reaction process w...

Staphylococcal food poisoning results from ingestion of enterotoxins produced by Staphylococcus aureus. Staphylococcal enterotoxin D (SED) is one of the most common toxins detected in S. aureus strains associated with intoxications. The effect of sodium nitrite on enterotoxin production has been...

ABSTRACTIntoxication by staphylococcal enterotoxins (SE) is among the most common causes of food-poisoning outbreaks resulting from the consumption of raw milk or products made thereof. The aim of our study was to analyze the thermal stability of SE and evaluate the inactivation of SE types A, B...

Staphylococcal enterotoxins (SEs) are produced by some Staphylococcus aureus strains contaminating foodstuffs and are the real causative agents of staphylococcal food poisoning. To date, 24 different SEs have been described, based on sequence homology but only a few of them have been fully chara...

Staphylococcal enterotoxins cause food poisoning of various degrees of severity. For milk and meat products, there is a high probability of contamination with staphylococcal enterotoxin H (SEH). In this regard specific and sensitive methods are required to be developed for its detection and moni...

Various food-related stress and intracellular regulators have been previously demonstrated the influence on enterotoxin genes expression, detail information about specific meat nutritional factors promoting enterotoxin genes expression via intracellular regulators still remain unclear. In this s...

Staphylococcal enterotoxin B (SEB) is an important enterotoxin which is a major reason for food poisoning and a potential biologic agent. Hence, rapid and accurate detection is very important. An amplified luminescent proximity homogeneous assay (AlphaLISA) for SEB detection was established here...

Staphylococcal scarlet fever (SSF) is characterized by an exanthem without enanthem, bullae, or exfoliation, and is known to be related to Staphylococcus aureus toxins, especially superantigens. It has been reported in children and young adults. Herein, we report the first case of an elderly pat...