Enhancing detection of low‑abundance metabolites in proton NMR through band‑selective suppression and presaturation.

ABSTRACT: Metabolomics provides powerful means to analyze metabolite profiles in biological samples, enabling insights into biochemical changes under genetic, environmental, or pathological conditions. Nuclear Magnetic Resonance (NMR) spectroscopy is central to metabolomics, but its utility is often constrained by the strong and overlapping resonances of abundant components, such as sugars in plant‑ and food‑derived materials, which obscure signals of lower‑abundance metabolites. Here, we introduce a modified NMR acquisition method that increases sensitivity and specificity by selectively suppressing dominant signals, while enhancing weaker metabolite signals across the spectrum. The method integrates water presaturation with excitation sculpting (ES), yielding a robust 1D presat‑¹H‑ES pu

SUBMITTER: Singh U 

PROVIDER: S-EPMC12790556 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature