Publications by authors named "A Wisniewska"
Background: Aldehyde dehydrogenase class 1 (ALDH1) is an enzyme that is ubiquitously distributed in adult tissues and may serve as a prognostic marker in various cancer types. In blood, 99% of ALDH1 is found in erythrocytes; although, it was also demonstrated that leukocytes and platelets exhibit ALDH activity. No ALDH activity was detected in plasma, even when employing the highly sensitive fluorometric method with 7-methoxy-1-naphthaldehyde as a substrate.
View Article and Find Full Text PDFTwo donor-acceptor dyes with an -phenylene-linked carbazole electron donor and a benzothiazole-fused boron heterocyclic acceptor were designed, synthesized, and spectroscopically investigated. Due to the steric effects of boron heterocyclic units, the dyes demonstrate different conformations in the crystalline state. The presence of numerous hydrogen-bonding intermolecular interactions and the very weak π-π stacking in the molecular packing results in intense solid-state emission with photoluminescence quantum yields of 40 and 18% for crystals and 50 and 42% for host-based light-emitting layers.
View Article and Find Full Text PDFArticle Synopsis
- - Pumpkin is a nutritious fruit that is often turned into juice to minimize waste due to its perishability; this study focused on fermenting pumpkin juice using various lactic acid bacteria (LAB) strains.
- - Heat treatment before fermentation showed minimal effects on most components except for a decrease in carotenoid and polyphenol levels; fermentation consistently increased acidity and decreased pH without significant differences among LAB strains.
- - The study confirms that certain LAB strains are effective for fermenting pumpkin juice, emphasizing the importance of thermal processing to enhance shelf life, nutritional value, and safety in the food industry.