A5010888757- Metabolomics and Mass Spectrometry Studies
- Horticultural and Viticultural Research
- Fermentation and Sensory Analysis
- Diet and metabolism studies
- Computational Drug Discovery Methods
- Phytochemicals and Antioxidant Activities
- Nutritional Studies and Diet
- Gut microbiota and health
- Analytical Chemistry and Chromatography
- Ginseng Biological Effects and Applications
- Bioinformatics and Genomic Networks
- Tea Polyphenols and Effects
- Muscle metabolism and nutrition
- Advanced Proteomics Techniques and Applications
- Plant biochemistry and biosynthesis
- Plant Physiology and Cultivation Studies
- Phytochemistry and Biological Activities
- Alkaloids: synthesis and pharmacology
- Plant Surface Properties and Treatments
- Chemical synthesis and alkaloids
- Traditional Chinese Medicine Analysis
- Glutathione Transferases and Polymorphisms
- Gene expression and cancer classification
- Plant nutrient uptake and metabolism
- Protein Hydrolysis and Bioactive Peptides
University of Copenhagen
2010-2024
Fondazione Edmund Mach
2015-2022
IT University of Copenhagen
2021
Liquid chromatography-mass spectrometry (LC-MS)-based untargeted metabolomics experiments have become increasingly popular because of the wide range metabolites that can be analyzed and possibility to measure novel compounds. LC-MS instrumentation analysis conditions differ substantially among laboratories experiments, thus resulting in non-standardized datasets demanding customized annotation workflows. We present an ecosystem R packages, centered around MetaboCoreUtils, MetaboAnnotation...
Demands in research investigating small molecules by applying untargeted approaches have been a key motivator for the development of repositories mass spectrometry spectra and automated tools to aid compound identification. Comparatively little attention has afforded using retention times (RTs) distinguish compounds liquid chromatography there are currently no coordinated efforts share exploit RT information. We therefore present PredRet; first tool that makes community sharing information...
Background and Aims This study evaluated the impact that non-Saccharomyces yeasts, Torulaspora delbrueckii (TD), Lachancea thermotolerans (LT), Pichia kluyveri (PK), Metschnikowia pulcherrima (MP), Candida zemplinina (CZ) Kazachstania aerobia (KA), in sequential inoculation with Saccharomyces cerevisiae (SC), had on volatile chemical profile of Shiraz wine. Methods Results grape must was inoculated monocultures which were allowed to ferment until 2% v/v ethanol concentration reached at...
Whey protein has been demonstrated to improve fasting lipid and insulin response in overweight obese individuals. To establish new hypotheses for this effect investigate the impact of stomach emptying, we compared plasma profiles after intake whey isolate (WI), casein, gluten (GLU), cod (COD). Obese, nondiabetic subjects were included randomized, blinded, crossover meal study. Subjects ingested a high fat containing one four sources. Plasma samples collected at five time points metabolites...
We analyzed via untargeted UHPLC-ESI-Q-TOF-MS the metabolome of berry tissues (skin, pulp, seeds) some American Vitis species (Vitis cinerea, californica, arizonica), together with four interspecific hybrids, and seven vinifera cultivars, aiming to find differences in metabolomes sp. versus vinifera. Apart from known differences, that is, more complex content anthocyanins stilbenoids grapes, we observed higher procyanidin accumulation (tens hundreds times) skin seeds comparison berries,...
Abstract Hairy root (HR) cultures are quickly evolving as a fundamental research tool and bio-based production system for secondary metabolites. In this study, an efficient protocol establishment elicitation of anthocyanin-producing HR from black carrot was established. Taproot hypocotyl explants four cultivars were transformed using wild-type Rhizobium rhizogenes. growth performance on plates monitored to identify three fast-growing lines, two originating (lines NB-R 43-R) one explant (line...
The exposure of human DNA to genotoxic compounds induces the formation covalent adducts, which may contribute initiation carcinogenesis. Liquid chromatography (LC) coupled with high-resolution mass spectrometry (HRMS) is a powerful tool for adductomics, new research field aiming at screening known and unknown adducts in biological samples. lack databases bioinformatics this limits applicability adductomics. Establishing comprehensive database will make identification process faster more...
Prediction of retention times (RTs) is increasingly considered in untargeted metabolomics to complement MS/MS matching for annotation unidentified peaks. We tested the performance PredRet (http://predret.org/) predict RTs plant food bioactive metabolites a data sharing initiative containing entry sets 29-103 compounds (totalling 467 compounds, >30 families) across 24 chromatographic systems (CSs). Between 27 and 667 predictions were obtained with median prediction error 0.03-0.76 min...
Feature-Based Molecular Networking (FBMN) is a popular analysis approach for LC-MS/MS-based non-targeted metabolomics data. While processing LC-MS/MS data through FBMN fairly streamlined, downstream handling and statistical interrogation often key bottleneck. Especially, users new to struggle effectively handle analyze complex matrices. In this protocol, we provide comprehensive guide the of results. We explain structure principles clean-up normalization, as well uni- multivariate...
The fatty acid (FA) composition of milk from six European areas, as well the alteration in FA profile during cheese production, was studied using both a targeted GC‐FID and an untargeted GC‐MS approach. By applying principal component, partial least square discriminant chemical similarity enrichment analysis, discrimination geographical areas could be achieved highlighting important classes such odd‐ branched‐chain FAs for differentiation. remained constant aroma compounds have been...
Abstract Purpose Aleurone is a cereal bran fraction containing variety of beneficial nutrients including polyphenols, fibers, minerals and vitamins. Animal human studies support the role aleurone consumption in reducing cardiovascular disease (CVD) risk. Gut microbiota fiber fermentation, polyphenol metabolism betaine/choline may part contribute to physiological effects aleurone. As primary objective, this study evaluated whether wheat supplemented foods could modify plasma homocysteine....
Necrotising enterocolitis (NEC) is a serious gut inflammatory condition in premature neonates, onset and development of which depend on the microbiome. Attenuation microbiome by antibiotics can reduce NEC incidence severity. However, how antibiotics-suppressed affects whole-body metabolism NEC-sensitive neonates unknown. In formula-fed preterm pigs, used as model for infants, plasma urinary metabolomes were investigated LC-MS 1H NMR, with without antibiotic treatment immediately after birth....
Severe acute malnutrition (SAM) is one of the leading nutrition-related causes death in children under five years age. The clinical features SAM are well documented, but a comprehensive understanding development from normal physiological state to lacking. Characterizing temporal metabolomic change may help understand disease progression and define nutritional rehabilitation strategies. Using piglet model we hypothesized that progressing degree induces marked plasma metabolite changes....