Article
Biochemistry & Molecular Biology
Yiyue Yang, Ming Yang, Tong Zhao, Lingyi Pan, Li Jia, Lufei Zheng
Summary: This study describes the variation in residue behavior of fluopyram in soil, carrot root, and carrot leaf samples after the application of fluopyram. The results show that the residue levels in edible parts were higher than the maximum residue limit in China when fluopyram was applied by root irrigation, while most of the fluopyram dissipated from the surface of carrot leaves when applied by foliar spray.
Article
Chemistry, Applied
Yudan Wang, Jia 'an Qin, Qian Lu, Jiao Tian, Tongwei Ke, Mengyue Guo, Jiaoyang Luo, Meihua Yang
Summary: In this study, a green analytical method was developed to extract and detect 20 analytes in edible herbs, including 10 neonicotinoid insecticides and their 10 major toxic metabolites. The QuEChERS and LC-MS/MS techniques were used for the analysis of these analytes in five edible herbs. Among the 109 herbal samples tested, 90 samples were found to be positive for the residues of the 20 neonicotinoid insecticides and their metabolites, with the range of total neonicotinoid insecticides residue being 0.26-139.28 μg/kg. Acetamiprid, imidacloprid, and their metabolites were the most frequently detected compounds in herbs. Positive correlations were observed between imidacloprid/acetamiprid and their metabolites in Lycii fructus and Citri reticulatae pericarpium. Therefore, the residue of neonicotinoid insecticides in edible herbs should be given more attention in the future.
Article
Chemistry, Applied
Xu Pang, Xiuhua Liu, Liangrui Peng, Zhijun Chen, Jing Qiu, Xin Su, Changyuan Yu, Jiguang Zhang, Rui Weng
Summary: This study developed a sensitive and reliable multi-residue pesticide analysis method for beef using 129 pesticides, with satisfactory sensitivity and accuracy demonstrated during method validation. The method was optimised using an orthogonal array design, significantly enhancing scientific rigor and simplifying the process.
Article
Food Science & Technology
Zhaoxiang Wang, Xiaoyi Chen, Qianqian Liu, Lin Zhang, Shuai Liu, Yingyue Su, Yamei Ren, Chunlong Yuan
Summary: This study successfully discriminated the geographical origin and vintage of wines using an untargeted metabolomic approach based on LC-IM-QTOF-MS. Wines were well discriminated according to region and vintage with OPLS-DA. Differential metabolites were screened and used for wine region and vintage discrimination, achieving an accuracy over 84.2% in the external verification trial. LC-IM-QTOF-MS-based untargeted metabolomics was demonstrated to be a feasible tool for wine geographical origin and vintage discrimination.
FOOD RESEARCH INTERNATIONAL
(2023)
Article
Chemistry, Applied
T. P. Ahammed Shabeer, Ramhari Somkuwar, Ajay Kumar Sharma, Umakant Deshmukh, Sandip Hingmire
Summary: This study assessed the transfer rate and processing factor of thirteen commonly recommended fungicides in grape during wine making. The results indicate that wine making significantly reduces the residue levels of fungicides, enhancing consumer safety.
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
(2023)
Article
Food Science & Technology
Hyun-Ho Noh, Seung-Hyeon Jo, Hyeon-Woo Shin, Dong-Ju Kim, Young-Jin Ham, Jun-Young Kim, Dan-Bi Kim, Hye-Young Kwon, Kee-Sung Kyung
Summary: This study investigates the dissipation of residual pesticides in persimmons and their processing products, finding that the residual concentration decreases significantly over time and remains stable during processing. Certain pesticides can be effectively removed through processing methods, providing important data for ensuring the safety of residual pesticides in processed products in the future.
Article
Biochemical Research Methods
Lorena Manzano-Sanchez, Suganthi Angappan, Jose Antonio Martinez, Ana Aguilera, Amadeo Rodriguez Fernandez-Alba
Summary: In this study, an automated micro solid-phase extraction (SPE) clean-up method was used for multi-residue analysis of pesticides in spice matrices. The method showed good recovery rates and stability, and demonstrated a 20% increase in output compared to manual clean-up.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2023)
Article
Biochemical Research Methods
Lorena Manzano-Sanchez, Suganthi Angappan, Jose Antonio Martinez, Ana del Real Aguilera, Amadeo Rodriguez Fernandez-Alba
Summary: In this study, an automated clean-up method was used to analyze pesticide residues in various spice matrices. By using sorbent materials suitable for multiple co-extractives and an automated clean-up process, the analysis efficiency and stability were effectively improved. The results of this study demonstrate that this method can provide accurate pesticide residue results in a short amount of time.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2023)
Article
Biochemistry & Molecular Biology
Marcin Gruba, Emilia Jozwik, Mariusz Chmiel, Katarzyna Tyskiewicz, Marcin Konkol, Anna Watros, Krystyna Skalicka-Wozniak, Grzegorz Wozniakowski
Summary: A multi-residue determination method for pesticide residues in dried hops was developed, employing acetate buffered QuEChERS method and dSPE sorbents. The study revealed that mixtures containing Z-Sep+ sorbent provided the best clean-up results. LC-MS/MS analysis was used for quantification, and the method was validated according to SANTE/11813/2017 guidelines. The validated method was successfully applied to the analysis of 15 real dried hop samples, providing data on detected residues.
Article
Chemistry, Applied
Tarik Balkan, Ozlem Yilmaz
Summary: In this study, the QuEChERS method was optimized and validated for the determination of 260 pesticides using liquid chromatography-tandem mass spectrometry (LC-MS/MS). The method showed suitable linearity, low limits of detection and quantification, and was used to detect pesticide residue levels in leafy vegetables.
Article
Environmental Sciences
Hanh Thi Duong, Nguyen Hai Doan, Ha Thu Trinh, Kiwao Kadokami
Summary: Vietnam is a developing country in Southeast Asia with increasing air pollution, particularly in major cities. Pesticide concentrations in atmospheric particulate matter are limited but may pose health risks. Research findings suggest that most population groups in Vietnam have low exposure risks to pesticides.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Food Science & Technology
Shuang Zhang, Zhiyong He, Maomao Zeng, Jie Chen
Summary: With the increasing popularity of multi-residue pesticide analysis method, optimal matrix-matched calibration protocols and LC-MS conditions are crucial for reducing matrix effects (MEs). In this study, a ME analysis strategy was established by distinguishing systematic ME variations induced by matrix species and mass spectrometry. The results showed that the time-of-flight-mass spectrometry (TOF-MS) scan under the information-dependent acquisition (IDA) mode achieved a simultaneous weakening of MEs on 24 pesticides in 32 different matrices compared to multiple reaction monitoring (MRM) scanning by tandem mass spectrometry (MS/MS). This study provided a novel strategy for ME analysis and revealed the interference of matrix species and mass spectrometry on MEs.
Article
Engineering, Environmental
Yan Chen, Enguang Nie, Xinqiang Zheng, Qingfu Ye, Hui Li, Haiyan Wang
Summary: This study found that caffeine was absorbed by Chinese flowering cabbage and water spinach, with most activity accumulated in the bottom leaves. At the subcellular level, 14C-activity was mainly distributed in the organelles in root and stem cells. The metabolism of caffeine was investigated, showing that it underwent demethylation and mineralization to release CO2.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Engineering, Environmental
Ryo Omagari, Mayuko Yagishita, Fujio Shiraishi, Shoji F. Nakayama, Masanori Terasaki, Tetsuya Tanigawa, Ichiro Yamauchi, Takuya Kubo, Daisuke Nakajima
Summary: 3,3',5-Triiodothyroacetic acid (TRIAC) is a major contributor to the activity of thyroid hormone receptor agonists in environmental water. It may cause disruption of the thyroid system in living aquatic organisms. The study found that T3 and T4 in influents of sewage treatment plants may be converted into TRIAC during treatment processes.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Food Science & Technology
Laia Sanchez Costa, Judit Pujol Boira, Miriam Arago Iglesias, Pilar Rodriguez Martinez, Mireia Medina Sala
Summary: This article presents a unified analytical methodology for determining the content of 181 pesticides in flowers, leaves, and tree trunks in compliance with current European legislation. The methodology was developed over a 7-year study, resulting in a Catalan agricultural production database that provides a comprehensive view of the use of phytosanitary products in crops prior to harvest. The methodology includes a multi-residue analysis method, modified QuEChERS protocol for pesticide extraction, and liquid and gas chromatography coupled to a triple quadrupole mass spectrometer for analysis. The methodology was validated according to SANTE/11312/2021 guidelines, demonstrating good sensitivity, selectivity, accuracy, precision, and linearity.
FOOD ANALYTICAL METHODS
(2023)
Article
Chemistry, Applied
M. Graca Dias, Elsa Vasco, Francisco Ravasco, Lufsa Oliveira
Summary: This study estimated the vitamin D intake of "adults" and "elderly" populations in Portugal using the TDS methodology. The results showed that the majority of people had inadequate vitamin D intake, well below the Dietary Reference Values.
Article
Chemistry, Applied
Yanan Wang, Jiachen Shi, Yong-Jiang Xu, Chin-Ping Tan, Yuanfa Liu
Summary: This study investigates the variations in lipid digestion profiles among individuals of different ages using in vitro digestion models. The findings suggest that adults have a more comprehensive lipid digestion compared to infants, and infants tend to release shorter chain length and more saturated free fatty acids during digestion. Additionally, the particle sizes in the stomach of the elderly were consistently larger. This study enhances our understanding of how lipids with different degrees of unsaturation undergo digestion in diverse age groups.
Article
Chemistry, Applied
Hyunjong Yu, Huisu Kim, Pahn-Shick Chang
Summary: Chitosan-pectin emulsion-filled hydrogel (EFH) was developed to enhance the bioaccessibility of lipophilic bioactive compounds through intestinal delivery. The EFH, prepared without crosslinking agents, demonstrated improved mechanical strength and compactness with higher pectin concentration. It retained the emulsion at pH 2.0 and released it at pH 7.4, resulting in enhanced release of free fatty acids and improved bioaccessibility of curcumin.
Article
Chemistry, Applied
Tongze Zhang, Siqi Hong, Jia-Rong Zhang, Pin-He Liu, Siyi Li, Zixian Wen, Jianwei Xiao, Guirong Zhang, Olivier Habimana, Nagendra P. Shah, Zhongquan Sui, Harold Corke
Summary: Lactic acid fermentation significantly affects the morphology and physicochemical properties of proso millet starch, including the formation of surface indentations and small pores, decrease in gelatinization temperatures, and changes in hardness and adhesiveness.
Article
Chemistry, Applied
Liqin Kong, Feng Hong, Peng Luan, Yiping Chen, Yaoze Feng, Ming Zhu
Summary: This study presents a novel impedance biosensor using composite nanomaterials and T1R1 as a signal probe, which can competitively and ultra-sensitively detect umami intensity. The biosensor exhibits exceptional analytical performance and is suitable for food flavor evaluation.
Article
Chemistry, Applied
Kunying Lv, Yixin Yang, Qilong Li, Ran Chen, Liang Deng, Yiwei Zhang, Ning Jiang
Summary: Horse's milk, with its high nutritional value and low allergenic proteins, could be a substitute for cow's milk in infant consumption. A proteomic method was used to identify and compare milk fat globule membrane (MFGM) and whey proteins from different horse breeds. The study found differences in protein composition and functionality, which could support the development of formulas more suitable for human infants.
Article
Chemistry, Applied
Enrique Jacobo Diaz-Montana, Helene Brignot, Ramon Aparicio-Ruiz, Thierry Thomas- Danguin, Maria Teresa Morales
Summary: Sensory perception of virgin olive oil is influenced by phenols and volatiles, which are affected by the composition of the oil and biological factors. This study investigated the effect of saliva and phenols on the release of volatiles, and found that the presence of phenols decreased the release of saturated volatiles.
Article
Chemistry, Applied
Wei Zhou, Rui Zhang, Zhen Cai, Fangfang Wu, Yong Hu, Chao Huang, Kun Hu, Yun Chen
Summary: Environmentally friendly and outstanding pH-responsive cationic starch nanoparticles (CSNP) were prepared from pH-sensitive starch. CSNP exhibited nanosize and regular sphere, highly free-flowing molecular chains, and demonstrated excellent pH responsiveness through multiple emulsion/demulsification transitions.
Article
Chemistry, Applied
Andrea Koo, Vinayak Ghate, Weibiao Zhou
Summary: This study suggests that direct seeding may negatively affect the nutritional quality of crops, causing a decrease in ascorbic acid, vitamin K, and total glucosinolate content.
Article
Chemistry, Applied
Tonghao Du, Yazhou Xu, Xiaoyan Xu, Shijin Xiong, Linli Zhang, Biao Dong, Jinqing Huang, Tao Huang, Muyan Xiao, Tao Xiong, Mingyong Xie
Summary: This study successfully improved the ACE inhibitory activity of black sesame seeds by fermenting them with Lactobacillus Plantarum NCU116 and hydrolyzing them using acid protease. The RF-PSO model was used to predict the ACE inhibitory activity during the hydrolysis process. Eight peptides with ACE inhibitory activity were identified from fermented black sesame seed hydrolysates after separation and screening.
Article
Chemistry, Applied
Yao Liu, Songyi Lin, Kexin Liu, Shan Wang, Qiaozhen Liu, Na Sun
Summary: This study analyzed the structural changes of shrimp proteins during digestion, predicted the immunodominant epitopes, and validated their allergenicity. The results showed that shrimp proteins were degraded into peptides during digestion, but still carried IgE epitopes that trigger allergic reactions.
Article
Chemistry, Applied
Tiantian Fu, Hongwei Cao, Yu Zhang, Xiao Guan
Summary: This study investigates the impact of milling on the active components in rice, with a focus on the stability and bioaccessibility of phenols, VB1, and alpha-GABA during cooking and digestion. The findings show that milling exacerbates the instability of gamma-GABA during cooking and VB1 during digestion, and it affects the bioaccessibility of these active compounds.
Article
Chemistry, Applied
Zhihao Yang, Yanru Hou, Min Zhang, Puxin Hou, Chang Liu, Lu Dou, Xiaoyu Chen, Lihua Zhao, Lin Su, Ye Jin
Summary: This study investigated the molecular mechanism of feeding regimes on lamb flavor by using TMT labeling combined with MS. The results showed that pasture-fed groups had higher levels of amino acids and volatile flavor substances compared to concentrate-fed groups. Additionally, several differentially abundant proteins associated with lamb flavor were identified.
Article
Chemistry, Applied
Zixuan Xie, De Zhang, Junyu Zhu, Qianqian Luo, Jun Liu, Jingtao Zhou, Xiaoyong Wang, Yuqiong Chen, Zhi Yu, Dejiang Ni
Summary: This study investigated the acidification of aroma-enhanced black tea during storage. Analysis of non-volatile substances and organic acids using UPLC-Q-TOF/MS and HPLC revealed a decrease in soluble sugars and amino acids, while an increase in organic acids such as oxalic acid, malic acid, and quinic acid. In vitro experiments further demonstrated that the acidification is a result of the decomposition of sugars and amino acids by heating, as well as the oxidation of aromatic aldehydes. Additionally, the study showed that the taste composition of tea infusion is altered, with reduced amino acids, catechins, soluble sugars, and flavonoids. This research provides a theoretical basis for improving the quality of black tea.
Article
Chemistry, Applied
Lin Wang, Falai Ma, Zihan Li, Yan Zhang
Summary: This study developed time-temperature integrators based on amyloglucosidase@Cu3(PO4)2 nanoflowers for monitoring the freshness of chilled pork. The results showed that the integrators were highly reliable and accurate in predicting the quality of chilled pork.