The work is focused on the quality evaluation of Slovak honey samples on the basis of minor saccharide contents. The samples included unifloral and multifloral types of honeys. The saccharide contents were determined by HPLC with fluorescence detection. Derivatization of sugars with dansylhydrazine was used to increase detection sensitivity. The C18 type stationary phase was used for the separation of analytes and the mixture of acetonitrile and acetic acid was used as the mobile phase. The determined carbohydrates were saccharose, maltose, turanose, and also the main sugars glucose and fructose. Limits of detection were in the range from 15 to 100 μg.ml-1 and suggest that low quantities of all studied compounds can be detected. Differences in saccharide contents between Slovak samples and samples from different geographical regions (France, Croatia) for maltose, turanose and also for saccharose were obtained. Using multivariate statistical treatment, Slovak honeys can be distinguished from other tested honeys using the saccharide profiles.
Download full-text PDF |
Source |
---|
Front Cell Dev Biol
December 2024
Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River (Ministry of Education), College of Horticulture and Landscape Architecture, Southwest University, Chongqing, China.
Plant-driven extracellular vesicles (PEVs) have attracted significant interest due to their natural origin, remarkable bioactivity, and efficacy in drug encapsulation and target delivery. In our work, extracellular vesicles from Citri Reticulate Pericranium (CEVs) were isolated and investigated their physicochemical characteristics and biological activities. We identified the vesicle structures as regular, with a particle size of approximately 200 nm.
View Article and Find Full Text PDFDiagn Pathol
January 2025
Cell Culture Laboratory, School of Dentistry, Federal University of Para, Rua Augusto Correa, 01 Guama, Belem, PA, 66075110, Brazil.
Background: Considering the significant participation of the microenvironment in the local aggressiveness of odontogenic keratocysts, this study aims to evaluate the expression of ADAMTS-1 and its substrates, versican, aggrecan and brevican in this locally invasive odontogenic cyst.
Methods: Immunohistochemistry and polymerase chain reaction (PCR) were conducted on 30 cases of odontogenic keratocysts (OKCs) and 20 dental follicles (DFs).
Results: The immunohistochemical expression of these proteins was predominantly cytoplasmic and granular across all samples.
Sci Rep
January 2025
Food Toxicology and Contaminants Department, National Research Centre, Dokki, Cairo, 12622, Egypt.
Food commodities, including mycotoxins naturally produced from toxigenic fungi (pre- or post-harvest), are particularly vulnerable to contamination. The study intended to use unique bioactive composites loaded with antimicrobial constituents for food packaging. Three composite types are based on carboxymethyl cellulose/shellac (CMC/SH) and loaded with pomegranate extract (POE) with or without jojoba oil (JOE) at various concentrations.
View Article and Find Full Text PDFEnviron Res
January 2025
Thermochemical Processes Group, Aragón Institute for Engineering Research (I3A), University of Zaragoza, C/Mariano Esquillor s/n, 50.018, Zaragoza, Spain. Electronic address:
This work explores the synergies between N-rich (Chlorella pyrenoidosa) and N-deficient (Undaria pinnatifida) macroalgae for the production of N-containing hydrochar and solid biofuels via co-hydrothermal carbonization (co-HTC). The impact of the feedstock (each alga alone and all possible binary mixtures) was comprehensively assessed under different temperatures (180-260 °C) and times (60-240 min). The synergies between micro and macroalgae governed product distribution, nitrogen transformation pathways, and hydrochar quality, with these effects varying by processing conditions.
View Article and Find Full Text PDFPLoS One
January 2025
Graduate School of Education & Human Development, Nagoya University, Nagoya, Aichi, Japan.
The present study examined factors associated with trunk skeletal muscle thickness (MT, an index for the amount of skeletal muscle) and echo intensity (EI, an index for the content of non-contractile tissue, such as intramuscular adipose tissue) in young Japanese men and women in consideration of habitual dietary intake. Healthy men (n = 26) and women (n = 24) aged 20 to 26 were enrolled. Trunk MT and EI were evaluated using ultrasound imaging at the height of the 3rd lumbar vertebra.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!