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The Release of Organic Acids and Low Molecular Weight Carbohydrates from Matcha Tea After In Vitro Digestion.
Nutrients
November 2024
Department of Food Analysis and Chemistry, Faculty of Technology, Tomas Bata University in Zlín, Vavrečkova 5669, 760 01 Zlín, Czech Republic.
Background/objectives: This study tested the influence of in vitro digestion on the release of organic acids and low molecular weight saccharides of matcha.
Methods: The concentrations of analytes in the raw and undigested portion of matcha were measured using HPLC with spectrometric and refractometric detection to establish their residual values after a two-step enzymatic digestion that was finally presented as a retention factor.
Results: It was established that dry matter digestibility values after simulated gastric and both gastric and intestinal phases were 67.
Aggregation behavior of newly synthesized Gemini cationic surfactants in absence and in presence of different inorganic salts in 15% DMSO-water solvent.
Sci Rep
September 2024
Chemistry Department, Faculty of Science, Port-Said University, Port-Said, Egypt.
In this study, three Gemini cationic surfactants related to thiazol-2-amine with three hydrocarbon chain lengths including 3-hexylthiazol-3-ium (TAC6), 3-dodecylthiazol-3-ium (TAC12) and octadecylthiazol3-ium (TAC18) were prepared. Surfactant structures were confirmed with IR and HNMR Spectroscopies. Critical micelle concentrations for all surfactants in 15% DMSO-Water solvent were measured using conductometric, refractometric, and densitometric techniques.
View Article and Find Full Text PDFGradient nanoplasmonic imaging metasurface for rapid and label-free detection of SARS-CoV-2 sequences.
Talanta
October 2024
Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China. Electronic address:
Compact and user-friendly nucleic acid biosensors play a crucial role in advancing infectious disease research, particularly for coronavirus (COVID-19). While nanophotonic metasurface sensors hold promise for high-performance sensing, they face challenges due to their complexity and bulky readout instruments. In this study, we propose a gradient nanoplasmonic imaging (GNI) metasurface that incorporates the concept of an optical potential well, enabling label-free single-step detection of SARS-CoV-2 sequences.
View Article and Find Full Text PDFPlasmonic Titanium Nitride Nanohole Arrays for Refractometric Sensing.
ACS Appl Nano Mater
November 2023
Research Institute for Health Sciences and Technologies (SABITA), Istanbul Medipol University, Beykoz, Istanbul 34810, Turkey.
Group IVB metal nitrides have attracted great interest as alternative plasmonic materials. Among them, titanium nitride (TiN) stands out due to the ease of deposition and relative abundance of Ti compared to those of Zr and Hf metals. Even though they do not have Au or Ag-like plasmonic characteristics, they offer many advantages, from high mechanical stability to refractory behavior and complementary metal oxide semiconductor-compatible fabrication to tunable electrical/optical properties.
View Article and Find Full Text PDFMicrobiological and Physicochemical Variations during Spontaneous Fermentation of Plantain Must.
Int J Food Sci
September 2023
Department of Biochemistry and Genetics, Peleforo Gon Coulibaly University, BP 1328 Korhogo, Côte d'Ivoire.
Major losses are recorded every year in the plantain production sector in Côte d'Ivoire. These losses are mainly due to poor harvesting, transport, and storage conditions. Local processing of this food crop into other products could help limit postharvest losses.
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