- Comparative physicochemical characterization and sensory profiling of Western Algerian and Polish honeys. [AUT.] DALILA BEREKSI-REGUIG, [AUT. KORESP.] HOCINE ALLALI, [AUT.] SALIM BOUCHENTOUF, NESSRINE KAZI TANI, GRAŻYNA KOWALSKA, DARIUSZ KOWALCZYK, JAKUB WYROSTEK, EWELINA ZIELIŃSKA, [AUT. KORESP.] RADOSŁAW KOWALSKI. PloS One 2025 Vol. 20 Iss. 10 Aricle number: e0334514, il., bibliogr., sum. DOI: 10.1371/journal.pone.0334514
Background An in-depth analysis was conducted on 37 honey samples from western Algeria representing diverse floral sources—lavender, rosemary, sweet white mustard, thyme, milk thistle, carob, orange, euphorbia, eucalyptus, camphor, jujube, sage, harmal, and multifloral blends. The objective was to evaluate their physicochemical properties and sensory characteristics, with Polish honeys serving as references. Methods Key physicochemical traits were measured, including moisture, pH, free acidity, electrical conductivity, hydroxymethylfurfural (HMF), proline, specific optical rotation, sugar profile (fructose, glucose, sucrose), and colour in CIELAB space (L*, a*, b*, and ). Sensory evaluation was performed using a five-point hedonic scale (+2 = “like very much” to –2 = “dislike very much”) and an 11-descriptor Check-All-That-Apply (CATA) questionnaire. Results All values satisfied European quality limits (moisture 14.67–20.87%, pH 3.47–5.60, free acidity 8.00–40.33 meq/kg, conductivity 0.16–1.18 mS/cm, …
- Modifying antibiotic activity of synthetic thiadiazine analogs against MDR bacteria and ADMET analysis. [AUT.] JOÃO ARTHUR DE OLIVEIRA BORGES, PRISCILLA RAMOS FREITAS, ISAAC MOURA ARAÚJO, RAY SILVA DE ALMEIDA, IGOR JOSÉ DOS SANTOS NASCIMENTO, JOÃO XAVIER DE ARAÚJO-JÚNIOR, EDEILDO FERREIRA DA SILVA-JÚNIOR, THIAGO MENDONÇA DE AQUINO, FRANCISCO JAIME BEZERRA MENDONÇA JUNIOR, EMMANUEL SILVA MARINHO, DOS SANTOS HELCIO SILVA, [AUT. KORESP.] RADOSŁAW KOWALSKI, [AUT.] GRAŻYNA KOWALSKA, MELO COUTINHO HENRIQUE DOUGLAS, TINTINO SAULO RELISON, ANA CAROLINA JUSTINO DE ARAÚJO. ChemistryOpen 2025 Vol. 14 Iss. 10 Aricle number: e202500260, il., bibliogr., sum. DOI: 10.1002/open.202500260
The indiscriminate use of antibiotics has led to the selection of resistant bacterial strains, significantly reducing the effectiveness of conventional treatments. In this context, thiadiazines have emerged as promising agents due to their antioxidant and antibacterial properties. This article aims to evaluate the antibacterial potential of synthetic thiadiazine analogs against selected bacterial strains. The synthesized compounds are purified using high-performance liquid chromatography, and absorption, distribution, metabolism, excretion, and toxicity analyses are performed, including interaction profiling with over 370,000 bioactive compounds. The bacterial strains Staphylococcus aureus 10 and Pseudomonas aeruginosa 24 are used as test organisms. When combined with standard antibiotics, thiadiazine compounds significantly reduced the minimum inhibitory concentration. However, some analogs exhibited antagonistic effects, particularly against gentamicin and erythromycin. Direct antibacterial activity is limited, with compounds IJ26 and IJ28 showing …
- The significance of selected collagens and their connection with relevant extracellular matrix proteins in bovine early-mid-pregnancy and parturition with and without retained foetal membranes. [AUT.] WAWRZYKOWSKI JACEK, JAMIOŁ MONIKA, [AUT. KORESP.] KANKOFER MARTA. Biomolecules 2025 Vol. 15 Iss. 2 Article number: 167, il., bibliogr.,sum. DOI: 10.3390/biom15020167
Appropriate placental structure and function assure foetal development, delivery of nutrients, and removal of waste. Collagens, as structural proteins, are crucial for the maintenance of placental growth and function. The aim of this study was to describe the profile of collagen 1 and 4 in the placental tissues of cows and to correlate it to previously described activities of collagenases and adhesive proteins. Placental samples were collected from pregnant cows in the slaughterhouse (2nd, 4th, and 6th month; n = 12) and during parturition after caesarean section. Samples taken during caesarean section were retrospectively divided into retained (R; n = 6) and not retained foetal membranes (NR; n = 6). Determinations were performed of maternal and foetal parts separately after tissue homogenisation. Supernatants were used for the determination of COL1 …
- Characterization of selenium accumulation in Lactiplantibacillus plantarum strains: a biotechnological approach. [AUT. KORESP.] JAGODA SZAFRAŃSKA, [AUT.] MAŁGORZATA ZIARNO, [AUT. KORESP.] MAREK KIELISZEK. Int. J. Vitam. Nutr. Res. (Online) 2025 Vol. 95 Iss. 5 Aricle number: 44231, il., bibliogr., sum.
Selenium, a trace element with antioxidant properties, plays a vital role in the metabolism of microorganisms. Meanwhile, supplementation with selenium may also modify the activity of probiotics. Thus, this study aimed to analyze the effect of selenium sup- plementation on the growth, tolerance, and selenium binding capacity of two probiotic strains: Lactiplantibacillus plantarum DSM24730 and 299v. In particular, this study aimed to determine whether introducing this microelement into the culture environment would affect the growth capacity and detoxification mechanisms of these bacteria. Additionally, the ability of the selected strains to absorb and store selenium was analyzed, which could have potential benefits for both human health and the quality of probiotic preparations. Methods: Bacterial cultures of Lactiplantibacillus plantarum DSM24730 and 299v were grown in specially prepared media supplemented with different concentrations …
- Influence of arabic gum/gelatin/ascorbyl palmitate coating on quality parameters of hazelnut kernels stored in plastic boxes. [AUT. KORESP.] DARIUSZ KOWALCZYK, [AUT.] KATARZYNA NIEDŹWIADEK, TOMASZ SKRZYPEK, EMIL ZIĘBA, JAROMIR JARECKI. Molecules (Basel,Online) 2025 Vol. 30 Iss. 20 Aricle number: 4126, il., bibliogr., sum. DOI: 10.3390/molecules30204126
Edible coatings enriched with antioxidants offer a promising approach to prolong the shelf life of oxidation-sensitive foods such as nuts. Nonetheless, not all formulations provide the expected protection, and understanding why is equally important. The aim of this study was to assess the effect of an Arabic gum/gelatin/ascorbyl palmitate (GAR/GEL/AP) coating on the quality of hazelnut kernels during storage at 23 °C and ~40% relative humidity. The coating was applied by dipping hazelnuts in a 20% ethanolic solution containing GAR/GEL 75/25 blend (10% w/w), glycerol (1% w/w), Tween 80 (0.25% w/w), and AP (2% w/w), followed by drying. Control (uncoated) and coated hazelnuts were stored in plastic containers and evaluated at 1, 2, 4, 8, and 16 weeks for weight loss, moisture content, hardness, color, 2,2-diphenyl-1-picrylhydrazyl radical (DPPH*) scavenging activity, …
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