Results 21 to 30 of about 1,111,397 (348)

A real case study on the physicochemical changes in crude palm oil (Elaeis guineensis) during the deep-frying of akara, traditional cowpea-paste balls, in Brazil

open access: yesGrasas y Aceites, 2019
The objective of this study was to evaluate the physicochemical changes in crude palm oil during a real case of deep-frying of akara, cowpea-paste balls, fried and sold in the streets of Brazil.
S. Feitosa   +6 more
doaj   +1 more source

NMR and Microorganisms [PDF]

open access: yesCurrent Issues in Molecular Biology, 2001
This article is an introduction to the use of NMR for the investigation of microbial physiology and metabolism. NMR parameters which determine the sensitivity and resolving power of the method are reviewed. A broad survey of current applications follows.
openaire   +2 more sources

Chemical shift extremum of 129Xe(aq) reveals details of hydrophobic solvation

open access: yesScientific Reports, 2018
The 129Xe chemical shift in an aqueous solution exhibits a non-monotonic temperature dependence, featuring a maximum at 311 K. This is in contrast to most liquids, where the monotonic decrease of the shift follows that of liquid density.
Petri Peuravaara   +5 more
doaj   +1 more source

DEEP picker is a deep neural network for accurate deconvolution of complex two-dimensional NMR spectra

open access: yesNature Communications, 2021
The analysis of nuclear magnetic resonance (NMR) spectra for the comprehensive and unambiguous identification and characterization of peaks is a difficult, but critically important step in all NMR analyses of complex biological molecular systems.
Da-Wei Li   +4 more
semanticscholar   +1 more source

NMR-based metabolomics analysis of organic and conventionally produced formula milk: preliminary results

open access: yesJournal of Pediatric and Neonatal Individualized Medicine, 2019
Proceedings of the 15th International Workshop on Neonatology and the 40th Congress UMEMPS (Union of Middle-Eastern and Mediterranean Pediatric Societies) • Cagliari (Italy) • October 24th-26th, 2019 • Children of the Middle-Eastern and Mediter­ranean ...
Sara Corbu   +5 more
doaj   +1 more source

Structural Characterization of the S-glycosylated Bacteriocin ASM1 from Lactobacillus plantarum

open access: yesMagnetochemistry, 2020
In order to protect their environmental niche, most bacteria secret antimicrobial substances designed to target specific bacterial strains that are often closely related to the producer strain.
Alexander K. Goroncy   +4 more
doaj   +1 more source

Determinação da Estrutura de Diferentes Álcoois Terpênicos: Um Estudo Teórico e Experimental

open access: yesOrbital: The Electronic Journal of Chemistry, 2013
Terpene compounds is a major class of natural products found in nature, although having a relatively simple structure, their 1H-NMR spectra and 13C are complex and have many overlapping signals.
Naiara Letícia Marana   +2 more
doaj   +1 more source

Intramolecular hydrogen bonds in 1,4-dihydropyridine derivatives [PDF]

open access: yesRoyal Society Open Science, 2018
1,4-Dihydropyridine (1,4-DHP) derivatives have been synthesized and characterized by 1H, 13C, 15N nuclear magnetic resonance (NMR) spectroscopy, secondary proton/deuterium 13C isotope shifts, variable temperature 1H NMR experiments and quantum-chemical ...
M. Petrova   +4 more
doaj   +1 more source

Blueprint for nanoscale NMR [PDF]

open access: yesScientific Reports, 2019
AbstractNitrogen vacancy (NV) centers in diamond have been used as ultrasensitive magnetometers to perform nuclear magnetic resonance (NMR) spectroscopy of statistically polarized samples at 1–100 nm length scales. However, the spectral linewidth is typically limited to the kHz level, both by the NV sensor coherence time and by rapid molecular ...
Ilai Schwartz   +7 more
openaire   +5 more sources

NMR Spectroscopy for Metabolomics Research

open access: yesMetabolites, 2019
Over the past two decades, nuclear magnetic resonance (NMR) has emerged as one of the three principal analytical techniques used in metabolomics (the other two being gas chromatography coupled to mass spectrometry (GC-MS) and liquid chromatography ...
A. Emwas   +10 more
semanticscholar   +1 more source

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