Rapid non-invasive quality control of semi-finished products for the food industry by direct injection mass spectrometry headspace analysis: the case of milk powder, whey powder and anhydrous milk fat

2016 ◽  
Vol 51 (9) ◽  
pp. 782-791 ◽  
Author(s):  
Salim Makhoul ◽  
Sine Yener ◽  
Iuliia Khomenko ◽  
Vittorio Capozzi ◽  
Luca Cappellin ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Quality Control ◽  
Milk Fat ◽  
Food Industry ◽  
Direct Injection ◽  
Milk Powder ◽  
Headspace Analysis ◽  
Anhydrous Milk Fat ◽  
Non Invasive ◽  
Direct Injection Mass Spectrometry

scholarly journals Comparative Metabolomic Study of Drosophila Species with Different Lifespans

2021 ◽  
Vol 22 (23) ◽  
pp. 12873
Author(s):  
Dmitry L. Maslov ◽  
Nadezhda V. Zemskaya ◽  
Oxana P. Trifonova ◽  
Steven Lichtenberg ◽  
Elena E. Balashova ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Metabolite Profiling ◽  
Direct Injection ◽  
Lifespan Extension ◽  
World Population ◽  
Comparison Study ◽  
Age Related ◽  
The World ◽  
Direct Injection Mass Spectrometry ◽  
Metabolomic Study

The increase in life expectancy, leading to a rise in the proportion of older people, is accompanied by a prevalence of age-related disorders among the world population, the fight against which today is one of the leading biomedical challenges. Exploring the biological insights concerning the lifespan is one of the ways to provide a background for designing an effective treatment for the increase in healthy years of life. Untargeted direct injection mass spectrometry-based metabolite profiling of 12 species of Drosophila with significant variations in natural lifespans was conducted in this research. A cross-comparison study of metabolomic profiles revealed lifespan signatures of flies. These signatures indicate that lifespan extension is associated with the upregulation of amino acids, phospholipids, and carbohydrate metabolism. Such information provides a metabolome-level view on longevity and may provide a molecular measure of organism age in age-related studies.

Development of a new phenotypic roadmap to improve strawberry aroma based on direct injection mass spectrometry

2021 ◽  
pp. 971-978
Author(s):  
B. Farneti ◽  
I. Khomenko ◽  
M. Pietrella ◽  
P. Martinatti ◽  
F. Emanuelli ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Direct Injection ◽  
Direct Injection Mass Spectrometry

scholarly journals Evaluation and validation of an analytical approach for high-throughput metabolomic fingerprinting using direct introduction–high-resolution mass spectrometry: Applicability to classification of urine of scrapie-infected ewes

2018 ◽  
Vol 25 (2) ◽  
pp. 251-258 ◽  
Author(s):  
Estelle Rathahao-Paris ◽  
Sandra Alves ◽  
Nawel Boussaid ◽  
Nicole Picard-Hagen ◽  
Véronique Gayrard ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
High Resolution ◽  
High Throughput ◽  
Biological Samples ◽  
Matrix Effects ◽  
Mass Measurement ◽  
Direct Injection ◽  
Mass Spectrometry Data ◽  
Direct Injection Mass Spectrometry

Direct injection–mass spectrometry can be used to perform high-throughput metabolomic fingerprinting. This work aims to evaluate a global analytical workflow in terms of sample preparation (urine sample dilution), high-resolution detection (quality of generated data based on criteria such as mass measurement accuracy and detection sensitivity) and data analysis using dedicated bioinformatics tools. Investigation was performed on a large number of biological samples collected from sheep infected or not with scrapie. Direct injection–mass spectrometry approach is usually affected by matrix effects, eventually hampering detection of some relevant biomarkers. Reference compounds were spiked in biological samples to help evaluate the quality of direct injection–mass spectrometry data produced by Fourier Transform mass spectrometry. Despite the potential of high-resolution detection, some drawbacks still remain. The most critical is the presence of matrix effects, which could be minimized by optimizing the sample dilution factor. The data quality in terms of mass measurement accuracy and reproducible intensity was evaluated. Good repeatability was obtained for the chosen dilution factor (i.e., 2000). More than 150 analyses were performed in less than 16 hours using the optimized direct injection–mass spectrometry approach. Discrimination of different status of sheeps in relation to scrapie infection (i.e., scrapie-affected, preclinical scrapie or healthy) was obtained from the application of Shrinkage Discriminant Analysis to the direct injection–mass spectrometry data. The most relevant variables related to this discrimination were selected and annotated. This study demonstrated that the choice of appropriated dilution faction is indispensable for producing quality and informative direct injection–mass spectrometry data. Successful application of direct injection–mass spectrometry approach for high throughput analysis of a large number of biological samples constitutes the proof of the concept.

High Throughput and Low Bias DNA Methylation and Hydroxymethylation Analysis by Direct Injection Mass Spectrometry

2021 ◽  
pp. 338880
Author(s):  
Yan Sun ◽  
Stephanie Stransky ◽  
Jennifer Aguilan ◽  
Sanjay Koul ◽  
Scott J. Garforth ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Dna Methylation ◽  
High Throughput ◽  
Direct Injection ◽  
Direct Injection Mass Spectrometry

Gas-Liquid Chromatographic Headspace Method for Vinyl Chloride in Vinegars and Alcoholic Beverages

1976 ◽  
Vol 59 (1) ◽  
pp. 30-31
Author(s):  
David T Williams
Keyword(s):  
Mass Spectrometry ◽  
Vinyl Chloride ◽  
Limit Of Detection ◽  
Direct Injection ◽  
Headspace Analysis ◽  
Alcoholic Beverages ◽  
Gas Chromatography Mass Spectrometry ◽  
Injection Methods ◽  
Liquid Chromatographic

Abstract Vinyl chloride (VC) is determined in vinegars and alcoholic beverages by gas-liquid chromatographic headspace analysis. The lower limit of detection is 10 ppb and confirmation by gas chromatography-mass spectrometry, single ion monitoring at m/e 62, is possible at this level. Comparison of the headspace and the direct injection methods for the determination of VC in vinegars and alcoholic beverages showed that the results obtained by the 2 methods were not significantly different (P>0.05).

Determination of naphthalene and total methylnaphthalenes in gasoline using direct injection-mass spectrometry

Talanta ◽  
2007 ◽  
Vol 72 (1) ◽  
pp. 256-262 ◽  
Author(s):  
J PAVON ◽  
M SANCHEZ ◽  
M LAESPADA ◽  
C PINTO ◽  
B CORDERO
Keyword(s):  
Mass Spectrometry ◽  
Direct Injection ◽  
Direct Injection Mass Spectrometry
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