An improved folate stable isotope dilution assay of unexploited food sources from Brazil [PDF]
Frontiers in Nutrition, 2023 Brazil has a diverse plant community, including underutilized non-conventional food crops (PANCs), which have the potential to be a rich source of food and contribute to food security.
Lisa Obermaier +10 more
doaj +8 more sources
Microalgae a Superior Source of Folates: Quantification of Folates in Halophile Microalgae by Stable Isotope Dilution Assay [PDF]
Frontiers in Bioengineering and Biotechnology, 2020 A multitude of human nutritional supplements based on Chlorella vulgaris biomass has recently been introduced to the specialty food market. In this study, an analysis of total folate contents in Chlorella sp.
Dirk Volker Woortman +7 more
doaj +10 more sources
Improved Stable Isotope Dilution Assay for Dietary Folates Using LC-MS/MS and Its Application to Strawberries [PDF]
Frontiers in Chemistry, 2018 Folates play an important role in the human body and a deficiency of this vitamin can cause several diseases. Therefore, a reliable analytical method is crucial for the determination of folate vitamers in strawberries and other dietary folate sources.
Lisa Striegel +4 more
doaj +4 more sources
Examination of paraben release from baby teethers through migration tests and GC–MS analysis using a stable isotope dilution assay [PDF]
BMC Chemistry, 2019 Parabens and sorbic acid are commonly used as food preservatives due to their antimicrobial effect. However, their use in foods for infants and young children is not permitted in the European Union.
Theodoros Potouridis +3 more
doaj +2 more sources
Stable isotope dilution assay for the accurate determination of mycotoxins in maize by UHPLC-MS/MS. [PDF]
Anal Bioanal Chem, 2012 A fast, easy-to-handle and cost-effective analytical method for 11 mycotoxins currently regulated in maize and other cereal-based food products in Europe was developed and validated for maize. The method is based on two extraction steps using different acidified acetonitrile–water mixtures.
Varga E +7 more
europepmc +4 more sources
Determination of tenuazonic acid in human urine by means of a stable isotope dilution assay [PDF]
Analytical and Bioanalytical Chemistry, 2013 The content of tenuazonic acid in human urine was determined by a stable isotope dilution assay (SIDA) that was recently developed for the analysis of food commodities and extensively re-validated for urine matrix in this study. Linearity of the response curve was proven between molar ratios n(labeled standard)/n(analyte) of 0.02-100.
Stefan Asam +2 more
exaly +5 more sources
Absolute quantification of tumor necrosis factor-alpha by isotope dilution mass spectrometry [PDF]
Frontiers in ChemistryTumor necrosis factor-α (TNF-α) is an important inflammatory mediator and has been widely recognized as a diagnostic biomarker for various autoimmune and infectious diseases in clinical practice, such as rheumatoid arthritis.
Chenchen Bao +8 more
doaj +2 more sources
Parkinson-dementia complex and development of a new stable isotope dilution assay for BMAA detection in tissue. [PDF]
Toxicol Appl Pharmacol, 2009 Beta-methylamino-L-alanine (BMAA) has been proposed as a global contributor to neurodegenerative diseases, including Parkinson-dementia complex (PDC) of Guam and Alzheimer's disease (AD). The literature on the effects of BMAA is conflicting with some but not all in vitro data supporting a neurotoxic action, and experimental animal data failing to ...
Snyder LR +5 more
europepmc +4 more sources
Quantitative Succinylacetone Measurement by Gas Chromatography‐Tandem Mass Spectrometry (GC–MS/MS) Facilitates Diagnosis, Monitoring, and Characterization of Tyrosinemia Type 1 and Other Hypersuccinylacetonemias [PDF]
JIMD ReportsTyrosinemia type 1 (HT1), due to deficient activity of fumarylacetoacetate hydrolase, causes accumulation of succinylacetone (SA). SA concentrations in urine and plasma of untreated HT1 patients are typically several thousand‐fold higher than normal ...
Denis Cyr +2 more
doaj +2 more sources
Redox Biology, 2022 Background: Hydrogen sulfide (H2S), a gaseous signaling molecule that impacts multiple physiological processes including aging, is produced via select mammalian enzymes and enteric sulfur-reducing bacteria.
Hind Malaeb +9 more
doaj +1 more source