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The use of nitrogen-15 in microbial natural product discovery and biosynthetic characterization [PDF]
Frontiers in Microbiology, 2023 This mini-review covers the use of nitrogen-15 in bacterial and fungal natural product discovery and biosynthetic characterization from 1970 to 2022. Nitrogen is an important element in a number of bioactive and structurally intriguing natural products ...
Kalindi D. Morgan
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Direct enhancement of nitrogen-15 targets at high-field by fast ADAPT-SABRE. [PDF]
J Magn Reson, 2017 Signal Amplification by Reversible Exchange (SABRE) is an attractive nuclear spin hyperpolarization technique capable of huge sensitivity enhancement in nuclear magnetic resonance (NMR) detection.
Roy SS +3 more
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Frontiers in Environmental Science, 2021 The stable isotope 15N is an extremely useful tool for studying the nitrogen (N) cycle of terrestrial ecosystems. The affordability of isotope-ratio mass spectrometry has increased in the last decades and routine measurements of δ15N with an accuracy ...
Patrick Schleppi, Wim W. Wessel
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Multivariate analysis of stable isotope data in the traceability process for birds=Análise multivariada em dados de isótopos estáveis no processo de rastreabilidade em aves [PDF]
Acta Scientiarum: Animal Sciences, 2012 Isotope analysis has proved to be an extremely important tool in the traceability process; however, statistical analyses of the results show discrepancies, as the data depend on and originate from several chemical elements such as carbon, hydrogen ...
Maria Márcia Pereira Sartori +4 more
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Rastreability of bovine meat and bone meal using the stable isotope technique in egg production
Scientia Agricola, 2021 The present study aimed to verify whether the inclusion of other ingredients in the diet of laying hens could interfere with the traceability of bovine meat and bone meal (BMBM) in eggs through stable carbon and nitrogen isotope analysis. Two hundred and
Juliana Célia Denadai +8 more
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Agriculture, 2020 Sugarcane is the most promising among renewable biofuel-producing crops. An adequate availability of water and nutrients, especially nitrogen (N), is of utmost importance.
Nelmício Furtado da Silva +7 more
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Isotopic Niche Segregation among Darwin’s Finches on Santa Cruz Island, Galápagos
Diversity, 2021 Darwin’s finches are a classic example of adaptive radiation involving differential use of dietary resources among sympatric species. Here, we apply stable isotope (δ13C, δ15N, and δ2H) analyses of feathers to examine ecological segregation among eight ...
Mariana Villegas +4 more
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Revista Brasileira de Ciência do Solo, 2009 O feijão-comum e o feijão-caupi estão entre as principais fontes de proteína vegetal para grande parte da população mundial, sobretudo aquela de baixa renda, e o N é o principal constituinte de proteínas. Os objetivos deste trabalho foram de avaliar, por
Marciano de Medeiros Pereira Brito +2 more
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Substituent effects on the nitrogen-15 and carbon-13 shieldings of some N-arylguanidinium chlorides [PDF]
, 1980 The 13C and 15N chemical shifts of five N-arylguanidinium chlorides carrying polar substituents, ranging in character from 4-methoxy to 4-nitro groups, have been determined by NMR spectroscopy at the natural-abundance level of 13C and 15N in dimethyl ...
Botto, Robert E. +2 more
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Soil respiratory quotient determined via barometric process separation combined with nitrogen-15 labeling [PDF]
, 2004 The barometric process separation (BaPS) and ¹⁵N dilution techniques were used to determine gross nitrification rates on the same soil cores from an old grassland soil.
Andersen +31 more
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