Article
Chemistry, Multidisciplinary
Kangyi Zhang, Lingling Gao, Can Zhang, Tao Feng, Haining Zhuang
Summary: A rapid and accurate method for detecting volatile components of corn was established using GC-IMS and GC-MS. The fingerprints of corns under different treatments were analyzed, and key flavor compounds were identified. The corns were classified into four categories, consistent with the results of sensory evaluation. Steamed, boiled, and fried corns were found to be more popular.
FRONTIERS IN CHEMISTRY
(2022)
Article
Chemistry, Analytical
Meriem Gaida, Caitlin N. Cain, Robert E. Synovec, Jean-Francois Focant, Pierre-Hugues Stefanuto
Summary: In this study, a new tile-based supervised analysis method called tile-based RF analysis is introduced, which combines the four-grid tiling scheme for F-ratio analysis with Random Forest algorithm. The RF approach allows analysis of unbalanced data sets and provides more stringent feature selection. It is a promising method for identifying class-distinguishing analytes in complex biological matrices characterized by high between-class variance and high within-class variance.
ANALYTICAL CHEMISTRY
(2023)
Article
Agriculture, Dairy & Animal Science
Katarzyna Pluta, Peter R. H. Jones, Natalia Drabinska, Norman Ratcliffe, Stephen D. Carrington, Patrick Lonergan, Alexander C. O. Evans
Summary: This study identified volatile organic compounds (VOC) in bovine cervicovaginal mucus that could be potential biomarkers of estrus and ovulation. The results may contribute to the development of a sensor device based on VOC for detecting estrus and ovulation in cattle, particularly in the dairy industry where most females are bred by artificial insemination. The VOC identified in mucus samples included 2-butanone, acetone, 2-pentanone, 4-methyl-2-pentanone, 1-(1-methylethoxy)-2-propanone, ethanol, 2-methyl-2-propanol, and 2-butanol.
JOURNAL OF DAIRY SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Colin Hastie, Adrian Thompson, Mark Perkins, Vaughan S. Langford, Michael Eddleston, Natalie Z. M. Homer
Summary: Self-poisoning with professional agricultural pesticide products accounts for about 20% of global suicides, with the majority occurring in South Asia and China. Faster detection of co-formulants can aid in early identification of pesticide poisoning and reduce mortality rates. SIFT-MS, a direct mass spectrometry technique, shows great promise as an alternative analytical tool for analyzing cyclohexanone and cyclohexanol in plasma, providing higher sample throughput compared to conventional GC/MS methods.
Article
Chemistry, Analytical
Sophia A. Schreckenbach, Denina Simmons, Adam Ladak, Lauren Mullin, Derek C. G. Muir, Myrna J. Simpson, Karl J. Jobst
Summary: This study developed a suspect screening method based on industrial compounds with bioaccumulation potential. Results showed that SQDIA has a significantly lower false-positive rate compared to standard DIA. Through suspect screening and nontargeted screening, multiple pollutants were identified, with some compounds confirmed through standards and structural analysis.
ANALYTICAL CHEMISTRY
(2021)
Article
Biochemical Research Methods
Yanchao Xing, Zhenyan Yu, Xiaohan Hu, Jiaxin Yin, Tianci Fan, Zhifei Fu, Guixiang Pan, Erwei Liu, Jianpeng Zhou, Lifeng Han
Summary: This study presents a comprehensive analysis of volatile organic compounds (VOCs) in raw Polygonum multiflorum Thunb. (PM) and its processed products. A simple and effective method based on volatile markers is proposed to determine the extent of PM processing. Analysis techniques including HS-SPME-GC-MS, HS-GC-IMS, PCA, fingerprint analysis, Cluster-KDE, and EFA are utilized to identify raw PM, analyze VOC content and distribution, and distinguish different groups of PM based on processing methods.
JOURNAL OF CHROMATOGRAPHY A
(2022)
Article
Food Science & Technology
Sha Yan, Xuan Wang, Minghui Sun, Wenqian Wang, Liming Wu, Xiaofeng Xue
Summary: Royal jelly is a popular nutraceutical with unique lipid composition, including phospholipids and trans-10-hydroxy-2-decenoic acid. This study found that the lipid composition of royal jelly is influenced by its botanical origin.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2022)
Article
Food Science & Technology
Shi Nie, Laihao Li, Yueqi Wang, Yanyan Wu, Chunsheng Li, Shengjun Chen, Yongqiang Zhao, Di Wang, Huan Xiang, Ya Wei
Summary: This study identified and quantified volatile organic compounds (VOCs) in fermented sea bass using gas chromatography-ion mobility mass spectrometry (GC-IMS) and gas chromatography-mass spectrometry (GC-MS). Aldehydes were found to be the principal contributors to the overall flavor of fermented sea bass, and several characteristic VOCs were identified. GC-IMS was demonstrated to rapidly detect VOCs, providing a theoretical basis for studying flavor formation in fermented sea bass.
Article
Multidisciplinary Sciences
Taiyun Kim, Owen Tang, Stephen T. Vernon, Katharine A. Kott, Yen Chin Koay, John Park, David E. James, Stuart M. Grieve, Terence P. Speed, Pengyi Yang, Gemma A. Figtree, John F. O'Sullivan, Jean Yee Hwa Yang
Summary: A new computational workflow is developed to remove unwanted data variation while preserving biologically relevant information in large scale metabolomics studies.
NATURE COMMUNICATIONS
(2021)
Article
Food Science & Technology
Mark M. Skinner, Jared T. Seale, Maranda S. Cantrell, Joseph M. Collins, Matthew W. Turner, Owen M. McDougal
Summary: This experimental study aimed to detect acrylamide in French fries using methods suitable for the food processing industry, comparing the pros and cons of each method to provide decision-making suggestions for food processors.
Article
Biochemical Research Methods
Hilaire Yam Fung Cheung, Cristina Coman, Philipp Westhoff, Mailin Manke, Albert Sickmann, Oliver Borst, Meinrad Gawaz, Steve P. Watson, Johan W. M. Heemskerk, Robert Ahrends
Summary: This study presents a quantitative targeted ion chromatography-mass spectrometry-based workflow for measuring phosphoinositides, which improves the accuracy of quantification. The workflow was validated in various tissues and demonstrated robustness for analyzing less-abundant phosphoinositides.
JOURNAL OF PROTEOME RESEARCH
(2021)
Article
Food Science & Technology
Zewei Zhang, Hongwu Ji, Di Zhang, Shucheng Liu, Xiaoshan Zheng
Summary: In this study, the role of amino acids in the formation of volatile substances during the drying process of Penaeus vannamei was investigated. The results showed that the type and content of volatile components significantly increased in samples with moisture contents between 30% and 5%, and basic amino acids (Arg, Lys, and His) had a strong correlation with the formation of pyrazines.
Article
Engineering, Chemical
Jaroslaw Widelski, Konstantia Graikou, Christos Ganos, Krystyna Skalicka-Wozniak, Ioanna Chinou
Summary: The study investigated the essential oils of nine selected Apiaceae plants cultivated in Poland, identifying over 60 different metabolites using Gas Chromatography-Mass Spectrometry. The essential oils from S. devenyense, H. dulce, T. japonica and P. luxurians were reported for the first time. Among all species examined, H. dulce, S. devenyense and S. libanotis showed the strongest antimicrobial activity against Gram-positive bacteria strains.
Article
Chemistry, Analytical
Mohammed Moufid, Michael Hofmann, Nezha El Bari, Carlo Tiebe, Matthias Bartholmai, Benachir Bouchikhi
Summary: The presence of wastewater and air pollution poses a significant risk to citizens and the country's image. Electronic nose and Voltammetric Electronic tongue are utilized to discriminate between polluted and clean environmental samples, with chemometric tools for data processing. These systems are proven to be valuable for analyzing polluted matrices.
Review
Spectroscopy
Raffaella Pascale, Maria A. Acquavia, Alberto Onzo, Tommaso R. I. Cataldi, Cosima D. Calvano, Giuliana Bianco
Summary: Surfactants are widely used in personal care products, detergents, and industrial applications, requiring sensitive analytical methods for determining their low concentration levels in complex matrices. The introduction of mass spectrometry techniques has significantly expanded research in the field, allowing for the analysis of complex mixtures and degradation products of surfactants at trace levels.
MASS SPECTROMETRY REVIEWS
(2021)