Article
Agriculture, Multidisciplinary
Yi-Hsuan Huang, Tsai-Hua Kao, Baskaran Stephen Inbaraj, Bing-Huei Chen
Summary: This study developed an analytical method for determining the levels of furan and its derivatives in commercial foods. The method used headspace-solid phase microextraction coupled with gas chromatography-tandem mass spectrometry. The results showed that different commercial food samples had varying levels of furan, with brewed coffee and canned coffee having the highest levels.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2022)
Article
Environmental Sciences
Mohammed Mousa Alshehri, Mohamed Ali Ouladsmane, Taieb Ali Aouak, Zeid Abdullah ALOthman, Ahmed Yacine Badjah Hadj Ahmed
Summary: Phthalates are widely used synthetic chemicals mainly used as plasticizers. This study developed a method for concentration of phthalate residues leached from PET bottles and found that several bottled water brands contain different concentrations of phthalates, with DnBP being the most abundant.
Article
Chemistry, Applied
Yi Chen, Pao Li, Luyan Liao, Yeyou Qin, Liwen Jiang, Yang Liu
Summary: The study utilized a combination of HS-GC-IMS and HS-SPME-GC-MS to investigate the changes in volatile organic compounds (VOCs) during the fermentation of Liuyang Douchi, identifying 115 VOCs with distinct patterns at different fermentation stages. The research identified 49 marker VOCs that could distinguish the fermentation stages of Douchi based on their composition, with different VOCs contributing to the unique aromas of Douchi at each stage of fermentation.
Article
Food Science & Technology
Yin Wang, Xian Wang, Yuanyuan Huang, Tianli Yue, Wei Cao
Summary: Headspace solid-phase microextraction coupled with gas chromatography-mass spectrometry and headspace gas chromatography-ion mobility spectrometry were used to analyze the volatile organic compounds from chilled chicken contaminated with Staphylococcus aureus during early storage. Differential metabolites and their possible biotransformation pathways were analyzed using the KEGG database. Orthogonal partial least squares discriminant analysis was applied to identify biomarkers associated with the early stage of chicken meat contamination with S. aureus.
Article
Environmental Sciences
Xiaofang Yang, Xinmeng Zhu, Wei Gao, Ruyuan Jiao, Shan Zhao, Jianwei Yu Dongsheng Wang, Dongsheng Wang
Summary: The study found that MVOCs in sludge treatment processes are the main source of nuisance odors in wastewater treatment plants, and low-temperature thermal drying treatment can increase the odor intensity and MVOCs concentration of sludge. There is a significant positive correlation between bacterial community structures and key MVOC odorants.
ENVIRONMENTAL POLLUTION
(2022)
Article
Food Science & Technology
Xueting Liu, Xueli Wang, Yanwei Cheng, Yuangen Wu, Yan Yan, Zhen Li
Summary: In this study, changes in volatile organic compounds (VOCs) in Zhenyuan Daocai at different storage durations were analyzed. Various methods including electronic tongue (E-tongue), electronic nose (E-nose), and gas chromatography-ion mobility spectrometry (GC-IMS) were used. The results showed that the VOCs in Zhenyuan Daocai originated from raw materials and processing, and different compounds were responsible for different flavors. Furthermore, the characteristic VOCs changed after different durations of storage, contributing to floral, fruity, almond, roasted meat, fried coffee, and apple flavors.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2023)
Article
Food Science & Technology
Mouyong Zou, Hongbiao Tang, Xun Chen, Liqiong Guo, Junfang Lin
Summary: The flavor substances in different stages of Longpai soy sauce moromi fermentation were analyzed by HS-GC-IMS combined GC x GC-ToF-MS. A total of 374 VOCs were detected, with alcohols and esters being the most abundant. During the early stage, alcohols and aldehydes were the main flavor compounds. The content of esters, pyrazines, furans, and S-containing compounds improved with continuous fermentation. Cluster and PCA analysis showed that 63 VOCs were regarded as marker VOCs for soy sauce in different fermentation stages. Certain compounds, such as alcohols, 1-butanol, and 3-methyl-2-butenal, provided fruity and mellow aroma in the early stage, while caramel-like, malty, and sweet aroma were enhanced by compounds like 3-methyl-2(5H)-furanone, 3-methylbutanol, methional, and acetyl valeryl in the middle stage. Additionally, furfuryl alcohol, 2(5H)-furanone, methyl cyclopentenolone, and 2-Ethyl-6-methylpyrazine could serve as marker VOCs of matured Longpai soy sauce.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2023)
Article
Agriculture, Multidisciplinary
Xiaofeng Yue, Shiqiu Liu, Shichao Wei, Yulin Fang, Zhenwen Zhang, Yanlun Ju
Summary: This study investigated the effects of exogenous sucrose on monoterpene metabolism in Muscat Hamburg grape berries through transcriptomics and metabolomics. The results showed that sucrose application induced the accumulation of monoterpenes at harvest, with significant differential gene expression between control and treatment groups. Weighted gene correlation network analysis revealed a module likely correlated with monoterpene metabolism, providing new insights into the regulation of monoterpene biosynthesis in grape berries under exogenous sucrose.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2021)
Article
Biochemistry & Molecular Biology
Sarah Fruehwirth, Sandra Egger, Thomas Flecker, Miriam Ressler, Nesrin Firat, Marc Pignitter
Summary: The study found three different epoxidized triglycerides in margarine, which could potentially be used as new indicators for lipid oxidation. Acetone was identified for the first time as a lipid oxidation product in stored margarine and may serve as a new indicator for lipid oxidation.
Article
Chemistry, Applied
Mostafa H. Baky, Samir Nabhan Shamma, Jianbo Xiao, Mohamed Farag
Summary: This study explored the aroma and nutrient profiles of six cruciferous vegetables and found extensive variation among them. The differences provided a basis for distinguishing these vegetables, and several new markers were discovered. Additionally, this study compared the edible and inedible parts of cruciferous vegetables for the first time, suggesting new potential uses as functional foods.
Article
Environmental Sciences
Sarah Tabbal, Badr El Aroussi, Michele Bouchard, Genevieve Marchand, Sami Haddad
Summary: A method has been developed to quantify 21 mVOCs in urine and human blood using headspace solid phase micro-extraction coupled with gas chromatography-triple quadrupole mass spectrometry. The developed method showed good linearity, low limits of detection, high recoveries, and satisfactory accuracy and precision.
Article
Chemistry, Applied
Camilla Scavarda, Chiara Cordero, Giulia Strocchi, Cristian Bortolini, Carlo Bicchi, Erica Liberto
Summary: This study utilized HS-SPME-MS-enose in combination with chemometrics to detect cocoa smoky off-flavour, providing a fast, cost-effective, and objective approach for high throughput analytical screening.
Article
Chemistry, Applied
Xuemei Tian, Fenghua Wu, Guoxin Zhou, Jian Guo, Xingquan Liu, Tao Zhang
Summary: In this study, the volatile compounds in non-infested and S. oryzae-infested brown rice were analyzed to identify potential markers and facilitate pest monitoring. A reliable method to distinguish between non-infested and S. oryzae-infested brown rice was discovered. The findings of this study lay a foundation for further research on the brown rice infestation mechanism and safe storage monitoring.
Article
Food Science & Technology
Naissa Previde Bernardo, Aline de Oliveira, Renata Vieira da Mota, Francisco Mickael de Medeiros Camara, Isabela Peregrino, Murillo de Albuquerque Regina, Eduardo Purgatto
Summary: This study evaluated the impact of the lyre and Geneva double-curtain training systems on the volatile composition of sparkling wines and found that different training systems and seasons can lead to variations in the chemical composition of sparkling wines.
Article
Food Science & Technology
Chenguang Zhou, Yaojie Zhou, Yuqian Hu, Bin Li, Roujia Zhang, Kaiyi Zheng, Jie Liu, Jing Wang, Min Zuo, Siyao Liu
Summary: The study found that germinated brown rice (GBR) from Japonica rice cultivars contained higher levels of health-promoting compounds compared to Indica rice cultivars. No clear differences in volatile profiles were observed between the subspecies, but all volatile organic compounds exhibited significant reductions after germination, suggesting that Japonica cultivars might be preferred for health-conscious consumers seeking GBR products.
Article
Chemistry, Multidisciplinary
Joel Sanchez-Pinero, Paula Gomez-Meijide, Estefania Concha-Grana, Jorge Moreda-Pineiro, Soledad Muniategui-Lorenzo, Purificacion Lopez-Mahia
Summary: This study measured the oral bioavailability of PAHs in PM10 using a simulated digestive system test, and found that the bioavailability was below 5%, with fluorene, anthracene, acenaphthene, and phenanthrene being the most bioavailable PAHs. Health risk assessment showed no carcinogenic risk from orally bioavailable PM10-bound PAHs.
ENVIRONMENTAL CHEMISTRY LETTERS
(2022)
Article
Environmental Sciences
Adrian Lopez-Rosales, Jose Andrade, Veronica Fernandez-Gonzalez, Purificacion Lopez-Mahia, Soledad Muniategui-Lorenzo
Summary: The frequent reports of microplastics in fish stomachs have raised societal and environmental concerns as they can accumulate along the food chain. The analysis of microplastics in fish requires addressing two main challenges: sample treatment and final characterization. This study proposes a novel method using a quantum cascade laser-based device for faster characterization, but it also faces challenges in sample processing and particle handling.
MARINE POLLUTION BULLETIN
(2022)
Article
Environmental Sciences
Joel Sanchez-Pinero, Natalia Novo-Quiza, Cristina Pernas-Castano, Jorge Moreda-Pineiro, Soledad Muniategui-Lorenzo, Purificacion Lopez-Mahia
Summary: Inhalation exposure to PM2.5 has adverse effects on human health. The bioaccessibility of organic pollutants in PM2.5 samples was evaluated, and correlations between PM2.5 composition and bioaccessibility were analyzed. The health risk assessment of target PAHs indicated that the average human health risks were within safe levels.
ENVIRONMENTAL POLLUTION
(2022)
Article
Environmental Sciences
Borja Ferreiro, Jose M. Andrade, Carlota Paz-Quintans, Veronica Fernandez-Gonzalez, Purificacion Lopez-Mahia, Soledad Muniategui
Summary: This study explores the use of infrared spectra combined with pattern recognition techniques to identify different polymers, regardless of their aging. The results show that it is possible to successfully identify them using a reduced number of spectral wavenumbers with coherent chemical meaning.
MARINE POLLUTION BULLETIN
(2022)
Review
Chemistry, Analytical
V. Fern, J. M. Andrade-Garda, S. Muniategui-Lorenzo
Summary: The low percentages of PVC reported in academic studies may be due to various factors, highlighting the need for suitable spectroscopic databases that include PVC weathered standards.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2022)
Article
Environmental Sciences
Joel Sanchez-Pinero, Natalia Novo-Quiza, Jorge Moreda-Pineiro, Isabel Turnes-Carou, Soledad Muniategui-Lorenzo, Purificacion Lopez-Mahia
Summary: The occurrence of multiple pollutants in atmospheric particulate matter samples collected at an automotive manufacturing industrial area in Vigo, Spain was studied, and their concentrations, sources, and risks were evaluated.
ENVIRONMENTAL RESEARCH
(2022)
Article
Environmental Sciences
Estefania Concha-Grana, Carmen Ma Moscoso-Perez, Purificacion Lopez-Mahia, Soledad Muniategui-Lorenzo
Summary: The hydrophobicity of persistent organic pollutants (POPs) allows them to adsorb onto microplastics in the marine environment, affecting their distribution and transfer in the food chain. This study investigated the adsorption of two pesticides and six musk fragrances on polyamide and polyhydroxybutyrate in seawater, considering the influence of water temperature and plastic weathering. The results showed that PHB had higher adsorption capacity for the pollutants compared to PA, and PA was more affected by temperature and plastic weathering.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Meeting Abstract
Toxicology
A. Alba-Gonzalez, N. Fernandez-Bertolez, A. Quelle-Regaldie, L. Sanchez, J. Moreda-Pineiro, J. Yanez, B. Laffon, V. Valdiglesias, M. Folgueira
TOXICOLOGY LETTERS
(2022)
Article
Environmental Sciences
Natalia Novo-Quiza, Silvia Sanroman-Hermida, Joel Sanchez-Pinero, Jorge Moreda-Pineiro, Soledad Muniategui-Lorenzo, Purificacion Lopez-Mahia
Summary: A novel in-vitro method was developed to assess the inhalation bioavailability of metal(oid)s in PM2.5 samples using synthetic body fluids, human physiological conditions, and a simulated air-blood barrier. Metal(oid)s such as Cu and Mo showed the highest bioavailability, while Al, Co, Cr, Fe, Ni, Ti, and Tl had low bioavailability. Health risk assessment suggested no risk to human health based on inhalation exposure scenarios and hazard indexes. The chemical composition of PM2.5 influenced the bioavailability of certain metals.
ENVIRONMENTAL POLLUTION
(2023)
Article
Chemistry, Applied
Carmen Maria Moscoso-Perez, Veronica Fernandez-Gonzalez, Jorge Moreda-Pineiro, Purificacion Lopez Mahia, Soledad Muniategui-Lorenzo
Summary: Although the European Parliament has set limits for the environmental quality of organotin compounds (OTs) in Directive 2013/39/EU, the marine environment continues to be affected due to global maritime circulation. OTs accumulate in fish and seafood, making them the main source of OTs in human consumption. A robust and fast method for quantifying OTs in fish and seafood, using ultrasound-assisted extraction and gas chromatography-tandem mass spectrometry, has been validated and applied.
FOOD ADDITIVES & CONTAMINANTS PART B-SURVEILLANCE
(2023)
Article
Environmental Sciences
Carlos Ramos-Contreras, Maria Pineiro-Iglesias, Estefania Concha-Grana, Joel Sanchez-Pinero, Jorge Moreda-Pineiro, Amaya Franco-Uria, Purificacion Lopez-Mahia, Francisco Molina-Perez, Soledad Muniategui-Lorenzo
Summary: This study examines the spatio-temporal variations of PM10 mass concentrations and associated pollutants in Medellin and Itagui, Colombia. The study provides valuable data on the chemical characterization of PM10, including metal(oid)s concentrations and polycyclic aromatic hydrocarbons (PAHs) concentrations. The results show that combustion processes and secondary aerosols are the major sources of PM10 in the study area. Additionally, the study reveals a moderate carcinogenic risk from PM10-bound PAHs exposure and a significant carcinogenic risk from carcinogenic metal(oid)s exposure during the sampling period.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Correction
Biochemical Research Methods
Yong Wang, Suhua Yu, Rui Li, Jing Wan, Yuheng Wang, Zongli Huo, Chunyong Wu, Li Mi, Songqin Liu
JOURNAL OF CHROMATOGRAPHY A
(2024)
Review
Biochemical Research Methods
Israel D. Souza, Maria Eugenia C. Queiroz
Summary: Organic-silica hybrid monolithic materials have gained significant attention in separation science and sample preparation due to their unique properties. This review summarizes the characteristics, current status, and recent developments of these materials, as well as discusses synthesis methods, characterization techniques, and strategies for improving extraction efficiency in various applications.
JOURNAL OF CHROMATOGRAPHY A
(2024)
Article
Biochemical Research Methods
Bhagwat Upreti, Bhanu Prasad Vempatapu, Jagdish Kumar, Pankaj K. Kanaujia
Summary: Lubricating oils are essential for the effective performance of internal combustion engines. This study presents a new HPLC method for determining additives in finished lubricating oils and polar substances in used engine oils.
JOURNAL OF CHROMATOGRAPHY A
(2024)
Article
Biochemical Research Methods
Zongqing Huang, Haoju Hua, Xiuzhen Du, Zipeng Zhen, Wei Zhao, Jun Feng, Ji-an Li
Summary: This study successfully isolated VHHs against the SUMO protein for the first time using biopanning of an immune camelid nanobody library. The VHHs were coupled to agarose resins to form affinity chromatography resins, allowing for one-step purification of various SUMO fusions.
JOURNAL OF CHROMATOGRAPHY A
(2024)
Article
Biochemical Research Methods
Xueting Qiu, Xuben Hou, Yue Yang, Hao Fang, Fei Cui, Xinying Yang
Summary: In this study, a new method based on electrophoretically mediated microanalysis was developed for the investigation of PTPRO enzymatic activity. The method was successfully used to determine the kinetics of PTPRO and the inhibitory concentration of PTPRO inhibitors. The method exhibited improved accuracy and reduced consumption compared to traditional methods.
JOURNAL OF CHROMATOGRAPHY A
(2024)
Article
Biochemical Research Methods
Feifei Luo, Mengmeng Hao, Lei Zhang, Yangguo Xie, Wei Hou, Hongya Wang, Zhongli Zhang
Summary: In this study, a comprehensive screening and structure elucidation of 23 nonvolatile organic compounds (NVOCs) in two antibody drugs was conducted. Seven previously unreported compounds were identified. A quantitative method with high sensitivity, accuracy, and precision was developed for evaluating the safety of NVOCs in drug products.
JOURNAL OF CHROMATOGRAPHY A
(2024)
Article
Biochemical Research Methods
Zuzana Vosahlova, Kveta Kalfkova, Martin Gilar, Jakub Szymarek, Maria Mazurkiewicz-Beldzinska, Sylwia Studzi
Summary: A hydrophilic interaction liquid chromatography method was developed for the separation and identification of oligonucleotide impurities and metabolites, and successfully applied to the analysis of serum samples from Spinraza-treated patients.
JOURNAL OF CHROMATOGRAPHY A
(2024)
Article
Biochemical Research Methods
Aswanidevi Kongasseri, Thirumalai Madhesan, Sangeetha Krishna Kumar, Sushmitha Pedugu Sivaraman, Suchashrita Mitra, Pitchaiah Kancharlapalli Chinaraga, C. V. S. Brahmmananda Rao, Sivaraman Nagarajan, Prabhakaran Deivasigamani, Akhila Maheswari Mohan
Summary: This study focuses on the sequential separation of trivalent lanthanides using modified C-18 silica-packed supports and reversed-phase HPLC technique. By tuning the column modifiers and separation parameters, the researchers achieved systematic separation of Ln(3+). The results showed that the choice of column modifiers and fine-tuning of the modification procedure were crucial for achieving excellent separation.
JOURNAL OF CHROMATOGRAPHY A
(2024)
Article
Biochemical Research Methods
Raquel Perez-Robles, Szabolcs Fekete, Robert Kormany, Natalia Navas, Davy Guillarme
Summary: There is a mismatch between the sample diluent and the mobile phase in HILIC analysis, leading to analyte breakthrough and peak distortion. Adding a weak solvent for pre-injection can effectively prevent these issues and improve sensitivity.
JOURNAL OF CHROMATOGRAPHY A
(2024)
Article
Biochemical Research Methods
Oleg Pokrovskiy, Irina Rostovschikova, Konstantin Ustinovich, Ilya Voronov, Dmitry Kosyakov
Summary: A chromatography-like propagation of water through the material bed was observed during supercritical fluid extraction of aroma plants with high moisture content, which could be significant for modeling the kinetics of supercritical fluid extraction of non-volatile compounds.
JOURNAL OF CHROMATOGRAPHY A
(2024)
Article
Biochemical Research Methods
Yasar Kemal Recepoglu, Ozguer Arar, Asli Yuksel
Summary: Biosorption using phosphorylated hazelnut shell waste (FHS) is a promising method for lithium removal and recovery. This study investigated the performance of a continuous-flow packed-bed column system using FHS for ultra-low level lithium removal. The results showed that the lihium biosorption capacity of the FHS column was unaffected by the bed height, but decreased with increasing flow rate.
JOURNAL OF CHROMATOGRAPHY A
(2024)
Article
Biochemical Research Methods
Jian Sun, Zheheng Zheng, Zixiao Jia, Jiabin Wang, Xucong Lin
Summary: In this study, an ionic covalent organic framework (iCOF) surface grafting monolithic sorbent was prepared for in-tube solid-phase microextraction (SPME) of aristolochic acids (AAs) in various samples. The density of quaternary ammonium ions in the iCOF was modulated for enhanced adsorption of AAs. The iCOF surface grafting monolithic sorbent was confirmed by different means. Several operating conditions were optimized to develop the online in-tube SPME-HPLC method, which showed good linearity, low limits of detection, and high recoveries for AAs in serum samples. This study presents a feasible approach for the application of COF-based monolithic sorbents in sample preparation.
JOURNAL OF CHROMATOGRAPHY A
(2024)
Article
Biochemical Research Methods
Zeng Wen, Ruihan Peng, Die Gao, Jing Lin, Jia Zeng, Zhou Li, Famin Ke, Zhining Xia, Dandan Wang
Summary: A chitosan-alginate sponge with multiple cross-linking networks was developed for adsorption and enrichment of anionic dyes from food samples. The sponge showed better three-dimensional network structure, mechanical behavior, and stability compared to pure chitosan and alginate sponges. The adsorption performance and selectivity of the sponge were systematically studied, and it maintained high adsorption capacity and selectivity for anionic dyes. The sponge also showed satisfactory reusability and was successfully combined with high-performance liquid chromatography for the enrichment and detection of anionic dyes in candy and cocktail samples.
JOURNAL OF CHROMATOGRAPHY A
(2024)
Article
Biochemical Research Methods
Hairong Zhang, Xiaojuan Jiang, Dandan Zhang, Yuexin Yang, Qiang Xie, Caisheng Wu
Summary: Analysis of in vivo exposure to traditional Chinese medicine using mass spectrometry is helpful for identifying effective ingredients and developing new drugs. This study focused on Forsythia suspensa (Lian Qiao) and used metabolomics technology to explore its in vivo exposure. By comparing the differences before and after administration, a complete set of nontargeted analysis strategies for TCM exposure was established. The study identified 393 Lian Qiao-related chemical components in mice after administration, including prototypes and metabolites. This study provides a reference for research on the active ingredients of Lian Qiao in vivo.
JOURNAL OF CHROMATOGRAPHY A
(2024)
Article
Biochemical Research Methods
Oscar Castejon-Musulen, Ricardo Lopez, Ignacio Ontan, Vicente Ferreira
Summary: A quantitative analytical method was developed and validated in this study to determine the concentrations of 81 aroma-relevant wine volatiles. The method utilizes stir bar sorptive extraction and multidimensional gas chromatography with flame ionization detector or mass spectrometer. The method demonstrated good linearity, reproducibility, and recovery, and was successfully applied to analyze 20 wine samples.
JOURNAL OF CHROMATOGRAPHY A
(2024)