Botanical Origin Influence on Some Honey Physicochemical Characteristics and Antioxidant Properties.

Five types of honey (multifloral, sunflower, linden, rapeseed, and acacia), from Southern Romania, were classified using chemometrics methods coupled with IR spectroscopy. The botanical origin's effect on the physicochemical characteristics of honey was studied to highlight the most valuable plant source of honey. Except for antioxidant activity, the moisture, ash, electrical conductivity (EC), pH, free acidity (FA), total sugar content (TSC), hydroxymethylfurfural (HMF), total phenolic (TPC), tannin (TTC), and flavonoid content (TFC) were significantly influenced by the botanical origin of the honey.

Biochemical Evaluation of Some Fruit Characteristics of Blueberry Progenies Obtained from 'Simultan × Duke'.

The popularity of blueberry cv. has increased over time because its fruits are highly valued for their taste, aroma, and multiple ways of use. A field trial with two genotypes and their hybrids was organized during 2021-2022 at the Research Institute for Fruit Growing Pitesti-Maracineni, Romania.

DNA influence on norfloxacin fluorescence.

The emission properties of norfloxacin, a quinolone antibiotic, in presence of salmon sperm DNA were studied at room temperature and in conditions of acid, alkaline and neutral pH. It was found that norfloxacin molecules are inserted between the DNA base pairs, as evidenced by the emission spectra features and the significant increases in relative viscosity of DNA by the addition of norfloxacin. The fluorescence quenching process was characterized by Stern-Volmer plots which display a positive deviation from the linearity.