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MetabolomicsEvaluation of ambient mass spectrometry tools for assessing inherent postharvest pepper quality

Horticulturists are interested in evaluating how cultivar, environment, or production system inputs can affect postharvest quality. Ambient mass spectrometry approaches enable analysis of minimally processed samples under ambient conditions and offer an attractive high-throughput alternative for ...

2022-03-04 | MTBLS2587 | MetaboLights
MetabolomicsSeawater Analysis by Ambient Mass Spectrometry-Based Seaomics

A transmission mode-direct analysis in real time-quadrupole time of flight-mass spectrometry (TM-DART-QTOF-MS)-based analytical method coupled to multivariate statistical analysis was developed to interrogate lipophilic compounds in seawater samples without the need of desalin...

2020-05-19 | MTBLS1198 | MetaboLights
MetabolomicsLipid Profiles of Human Brain Tumors Obtained by High-Resolution Negative Mode Ambient Mass Spectrometry

Alterations in cell metabolism, including changes in lipid composition occurring during malignancy, are well characterized for various tumor types. However, a significant part of studies that deal with brain tumors have been performed using cell cultures and animal models. Here, we present a data...

2021-11-18 | MTBLS1558 | MetaboLights
MetabolomicsComprehensive profiling of semi‐polar phytochemicals in whole wheat grains (Triticum aestivum) using liquid chromatography coupled with electrospray ionization quadrupole time-of-flight mass spectrometry

INTRODUCTION: Wheat (Triticum aestivum) it is one of the most important staple food crops worldwide and represents an important resource for human nutrition. Besides starch, proteins and micronutrients wheat grains accumulate a highly diverse set of phytochemicals.

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2024-05-01 | MTBLS2276 | MetaboLights
MetabolomicsAn ambient-temperature storage and stabilization device performs comparably to flash-frozen collection for stool metabolomics in infants

BACKGROUND: Stool metabolites provide essential insights into the function of the gut microbiome. The current gold standard for storage of stool samples for metabolomics is flash-freezing at - 80 °C which can be inconvenient and expensive. Ambient temperature storage of stool is ...

2021-01-27 | MTBLS201 | MetaboLights
MetabolomicsAssessing the potential of sputtered gold nanolayers in mass spectrometry imaging for metabolomics applications (Brain MALDI-MSI assay)

Mass spectrometry imaging (MSI) is a molecular imaging technique that maps the distribution of molecules in biological tissues with high spatial resolution. The most widely used MSI modality is matrix-assisted laser desorption/ionization (MALDI), mainly due to the large variety of analyte classes...

2022-01-21 | MTBLS588 | MetaboLights
MetabolomicsAssessing the potentiality of sputtered gold nanolayers in mass spectrometry imaging for metabolomics applications (Liver MALDI-MSI assay)

Mass spectrometry imaging (MSI) is a molecular imaging technique that maps the distribution of molecules in biological tissues with high spatial resolution. The most widely used MSI modality is matrix-assisted laser desorption/ionization (MALDI), but some organic matrices used in classical MALDI ...

2022-01-21 | MTBLS589 | MetaboLights
MetabolomicsCombining peak- and chromatogram-based retention time alignment algorithms for multiple chromatography-mass spectrometry datasets
Spring wheat (Triticum aestivum L.) was grown in a free-air carbon dioxide (CO2) enrichment (FACE) field experiment. Grain and biomass yield and its components were determined at maturity and the grain metabolome was analysed by gas chromatography-mass spectrometry (GC-MS) for elevated and ambient C...
2012-09-21 | MTBLS21 | MetaboLights
MetabolomicsMaternal steroids during pregnancy and their associations with ambient air pollution and temperature during preconception and early gestational periods
Hormones play critical roles in facilitating pregnancy progression and the onset of parturition. Several classes of environmental contaminants, including fine particulate matter (PM2.5) and ambient temperature, have been shown to alter hormone biosynthesis or activity. However, epidemiolo...
2024-06-27 | MTBLS2245 | MetaboLights
MetabolomicsHuman basal cell carcinoma samples analysed by laser desorption rapid evaporative ionisation mass spectrometry (LD-REIMS) imaging

Laser ablation rapid evaporative ionisation mass spectrometry (LA-REIMS) was used to analyse human basal cell carcinoma (BCC) samples. 14 samples are presented here, along with H&E-stained histological images.

2025-07-28 | MTBLS12786 | MetaboLights
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