Food Chemistry-X
·
2025
·
IF 8.2
Bao-Zhu Jia,Yan-Yan Liu,Feng-Yan Chen,Phannika Tongchai,Sumed Yadoung,Anurak Wongta,Zhen-Lin Xu,Lin Luo,Surat Hongsibsong
Dichlorvos (DDVP), a widely used yet environmentally hazardous organophosphate pesticide, necessitates rapid field monitoring due to increasing regulatory restrictions. In this study, we firstly present a gold-nanoparticle-based lateral flow immunochromatographic assay (LFIA) employing a highly specific anti-DDVP monoclonal antibody for onsite DDVP detection within 20 min. The optimized LFIA exhibited exceptional analytical performance, with limits of detection spanning 16 μg/kg to 108 μg/kg across six fruit and vegetable matrices—all below the established maximum residue limits in foods. Method validation with spiked fruit and vegetable samples showed recovery rates of 87.3–109.4 % and 89.2–103.3 %, respectively, with coefficients of variation below 8.3 % and 7.9 %, respectively, confirming the accuracy and precision of the assay. Notably, LFIA exhibited good agreement with standard GC–MS/MS analysis when applied to 144 authentic samples, further validating its reliability for real-world applications. This LFIA offers key advantages including portability, cost-effectiveness, and compatibility with regulatory thresholds, making it an ideal alternative to conventional instrumental methods for routine pesticide residue screening in food safety supervision settings.
研究领域:
食品安全
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分析化学
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环境科学
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产品关联
DOI
PubMed
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2025
·
IF 6.2
Kuang Luo,Ao Chen,Yiting Liu,Jie Yang,Ning Cai,Jumei Li
Surface-enhanced Raman spectroscopy (SERS) has been perceived as a valuable tool in ensuring food safety due to its rapid and intuitive nature. In this study, we demonstrate a novel cellulose-ZIF-8-noble metal nanostructure as a SERS substrate for the analysis of pesticide residues in food. Cellulose nanocrystal (CNC) acting as a scaffold, we systematically integrate ZIF-8 and Ag nanoparticles to fabricate tailored necklace-like CNC/ZIF-8/Ag core/shell nanostructures. SERS analysis reveals the CNC/ZIF-8/Ag presents an high enhancement factor of 6.39 × 10 4 , a low limit of detection (LOD) of 10 −9 mol/L, and a relative standard deviation of 10.24 % across 20 substrate batches for 4-mercaptobenzoic acid, underscoring its robust sensitivity and reproducibility. Moreover, its utility extends to the quantification of diquat dibromide (DQ) in standard solutions and green tea leaves, showcasing LODs of 6.61 × 10 −9 mol/L and 6.76 × 10 −8 mol/L, respectively, thereby exhibiting promising capabilities for ultra-sensitive pesticide detection in food. The exceptional SERS property can be ascribed to the enriching properties of the porous ZIF-8 nanostructures. Significantly, when exposed to UV light, the CNC/ZIF-8/Ag nanostructures efficiently degrade DQ within 60 min. Furthermore, their practical reusability under UV light is proved by high SERS performance across five detection cycles. These results emphasize the immense potential of CNC/ZIF-8/Ag in SERS-based trace pesticide detection.
研究领域:
食品科学
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材料科学
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环境科学
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产品关联
DOI
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2024
·
IF 12.2
Yanhao Zhang,Zifang Peng,Peiru Luo,Lin Zhu,Qingyun He,Congcong Pei,Dan Yin,Wenfen Zhang,Shusheng Zhang,Zongwei Cai
The broad application of various pesticides guarantees the development of agriculture all over the word but has ultimately led to their ubiquitous release into the environment as hazardous chemical residues. Diamide insecticides (DAIs) are regarded as new choice for prevention and protection of agricultural crops and city landscaping plants from the pests in more and more countries. However, their presence in fine particulate matter (PM 2.5 ) and associated health risks have not been studied. We reported for the first time the extensive distributions of PM 2.5 -bound DAIs in rural and urban areas of China, one of the world’s largest agricultural countries. Eight DAIs were analyzed, and five were consistently detected in PM 2.5 samples at concentrations primarily of pg m −3 level. Evident spatial/temporal variations were observed, with generally more serious DAIs’ contamination and long-term health risks in rural areas during spring, summer and autumn. The first exploration of DAIs’ toxicities on human bronchial epithelial cells discovered their capability of inhibiting cell viabilities, further demonstrating the potential detrimental effects of these emerging pollutants in PM 2.5 . This study confirms the widespread appearance of DAIs in PM 2.5 , emphasizing the need and urgency for concern about their pollution in both rural and urban air.
研究领域:
环境科学
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毒理学
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公共卫生
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产品关联
DOI
PubMed
高影响因子
Foods
·
2024
·Vol. 13
·期 9
·1310
·
IF 4.7
Qinghua Yao,Desen Su,Yunyun Zheng,Hui Xu,Minmin Huang,Meizhen Chen,Shaoxiao Zeng
Residual pesticides inAgrocybe aegeritamushroom have emerged as a significant concern and bring much uncertainty due to processing procedures. In this study, a modified QuEChERS sample preparation procedure and UPLC-MS/MS were used to analyze the residual levels of four commonly used pesticides inA. aegeritafrom field to product processing. The field results showed that dissipation of these targeted chemicals was consistent with the first-order kinetics, and the half-life time ranged from 20.4 h to 47.6 h. The terminal residues of the four pesticides at harvest time ranged from 9.81 to 4412.56 μg/kg in raw mushroom. The processing factors (PFs) of clothianidin, diflubenzuron, chlorbenzuron, and pyridaben ranged from 0.119 to 0.808 for the drying process and from 0.191 to 1 for the washing process. By integrating the data from the field trials, the PFs, and the consumption survey, the chronic dietary risks of the target chemicals viaA. aegeritaintake ranged from 2.41 × 10−5to 5.69 × 10−2for children and from 6.34 × 10−6to 1.88 × 10−2for adults, which are considerably below the threshold of 1, indicating no unacceptable risk to consumers in the Fujian province of China. This research offers foundational data for appropriate use and the maximum residue limit (MRL) establishment for these four insecticides inA. aegerita.
研究领域:
食品科学
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环境科学
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毒理学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Food Bioscience
·
2024
·
IF 4.8
Shunqian Zhuang,Jun Cheng,Songting Chen,Yuliang Li,Dazhi Ding,Zhilong Yu,Yunfei Xie
Lotus leaf is a super-hydrophobic material found in nature. Drawing inspiration from the micro-nano structure of lotus leaf surface, a hybrid surface-enhanced Raman spectroscopy (SERS) substrate owning both hydrophobic and hydrophilic properties was developed. The biomimetic part, which was fabricated by replicating the surface structure of lotus leaf using polydimethylsiloxane, exhibited a hydrophobic surface with a contact angle of 150.3°. Meanwhile, silver nanoparticles-coated filter paper was assembled on the top of the biomimetic part to render hydrophilic regions for SERS detection. Silver nanoparticles on the surface of filter paper owned a size of approximately 70–80 nm with an interval of about 5–10 nm. The hydrophobic/hydrophobic hybrid regions on the substrate significantly enhanced Raman signals of rhodamine 6g with mitigated coffee ring effects, showing a limit of detection low to 10 −10 M. Notably, the limit of detection of this technique for thiram on apple surface reached 0.5 ng/cm 2 , which was lower than the reported methods. The prepared substrate displayed exceptional uniformity and stability, with an RSD value of 7.21% calculated based upon 30 randomly selected Raman signals, and experienced a decrease in signal by only 29.7% after 30-d storage. This biomimetic substrate can be utilized for batch detection of pesticide residues on fresh produce with high sensitivity, thereby owning great potential for application as a rapid detection tool for food safety.
研究领域:
分析化学
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食品安全
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
SCIENCE OF THE TOTAL ENVIRONMENT
·
2024
·
IF 8.2
Fu-Rong Xiu,Xue Bai,Yingying Qi,Xiang Gao,Man Zhao
Pesticide residues in agricultural products are serious threat to people's health. Real-time monitoring of pesticides residues in the environment and agricultural products posed challenges to sustainable methods with high analytical performance for pesticide detection. Herein, waste PVC/coal fly ash (the mass ratio of PVC and coal fly ash was 4:1) was dechlorinated in subcritical water at low temperature to achieve nearly 100 % dechlorination of PVC and obtain carbon-based composite materials (CM-Fe/Al/Si-dPVC) with strong sening activity. For CM-Fe/Al/Si-dPVC, C Fe bonding resulted in strong electron migration, and nano/μm SiO 2 and Al 2 O 3 doping in the layered polyene C matrix provided large specific surface area , and silicon hydroxyl created good heterogeneous catalytic interfaces. CM-Fe/Al/Si-dPVC could strongly trigger luminol chemiluminescence (CL) reaction and produce intense CL signals. Neonicotinoid pesticides (acetamiprid and imidacloprid) bonded with CM-Fe/Al/Si-dPVC through coordination chelation and hydrogen bonding , which shielded the catalytic active site and increased the Fermi level of system, thus quenching CL reaction. Inspired by these, a cheap CL assay was constructed for detecting neonicotinoids combinations of acetamiprid and imidacloprid (NICs). The detection limits of NICs were 0.7 ng/L. Satisfactory recoveries were obtained for real agricultural products and environmental samples. The results of life cycle evaluation (LCA) revealed that the strategy had significantly small global warming potential (GWP). This work presented a sustainable method with environmental benefits for the detection of neonicotinoids, and also opened up new way for the recycling of organic solid wastes .
研究领域:
环境科学
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分析化学
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材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
FOOD CHEMISTRY
·
2021
·
IF 7.514
Murtaza Ali,Da-Wen Sun,Jun-Hu Cheng,Okon Johnson Esua
The effects of combined treatment (PAL-U) of plasma-activated liquid (PAL) including plasma-activated water (PAW) and plasma-activated buffer solution (PABS) and ultrasound (U) for the degradation of chlorothalonil fungicide on tomato fruit was investigated. Distilled water and buffer solution were activated by radiofrequency plasma jet for durations of 1, 3, 5, and 10 min to obtain PAL 1 to PAL 10 . Fruits were immersed in PAL for 15 min and also in distilled water with sonication for 15 min for individual treatments, and in PAL with sonication for 15 min for combined treatments. The maximum chlorothalonil fungicide residues were reduced by 89.28 and 80.23% for PAW 10 -U and PABS 10 -U, respectively. HPLC-MS characterization revealed chlorothalonil degradation pathway and formation of 2,4,5-trichloroisophthalonitrile, 2,4-dichloroisophthalonitrile, 4-chloroisophthalonitrile, isophthalonitrile and phenylacetonitrile as degradation products. Treatments also showed no negative effects on tomato quality. Therefore, PAL and PAL-U treatments could serve as effective methods for degrading pesticides on tomatoes.
研究领域:
食品科学
·
环境科学
✓ 已验证
DOI
PubMed
高影响因子
Journal of Materials Research and Technology-JMR&T
·
2021
·
IF 5.039
Chengli Yao,Xinna Gao,Xuan Liu,Yuhua Shen,Anjian Xie
It is a challenging and valuable work to synthesize surface enhanced Raman scattering (SERS) substrate with low cost and high performance by simple methods, and use it to detect pesticide residues in food. Here, Ferrero® chocolate-like Cu 2 O@Ag microspheres (FRC-Cu 2 O@Ag) were fabricated by a facile in-situ redox reaction. Cu 2 O directly acted as templates and reducing agents to induce the nucleation and growth of Ag nanoparticles on the microspheres surfaces. The prepared semiconductor-noble metal hybrids of Cu 2 O@Ag were utilized as SERS substrates to detect 4-mercaptobenzoic acid (4-MBA) and thiram molecules. The distinguished SERS effect was achieved when target molecules absorbed on the FRC-Cu 2 O@Ag composite. The substrate presented excellent sensitivity and reproducibility for the detection of 4-MBA and thiram with the limit of 10 −10 and 10 −9 M, respectively. Due to combining both advantages of electromagnetic enhancement of Ag metals and chemical enhancement of Cu 2 O semiconductors, the obtained FRC-Cu 2 O@Ag microspheres provided a SERS platform to conveniently detect molecules with thiol groups. When it was applied to detect thiram residues on apple peel and the detection limit was 1.2 × 10 −7 M, low than maximal residue limit (MRL) of 7 × 10 −6 M in fruit prescribed by the U.S. Environmental Protection Agency (EPA).
研究领域:
食品科学
·
分析化学
✓ 已验证
产品关联
DOI
高影响因子
LWT-FOOD SCIENCE AND TECHNOLOGY
·
2021
·
IF 4.952
Changjian Li,Jian Ju,Yunfei Xie,Hang Yu,Yahui Guo,Weirong Yao,He Qian
In industry, Polygalacturonase (PG) is typically used for enzymatic hydrolysis of fruit juice to increase the yield. In the present study, it was found that two pesticides, namely trichlorfon and carbosulfan, which are frequently applied to fruit trees, inhibited the activity of PG and reduced the yield of apple juice. The presence of trichlorfon and carbosulfan reduced the yield by 3.58% and 4.12% during enzymatic hydrolysis of apple juice, respectively. Undoubtedly, this might lead to enormous losses in the juice industry. Analysis of the catalytic mechanism of PG on pectin revealed that the N-acetyl-D-(+)-glucosamine (NAG-404) and tyrosine (TYR-197) residues in the active site played key roles in the process. Nonetheless, it was also determined that various moieties in the pesticides interacted with these amino acids , which led to a decrease in the catalytic activity of the enzyme. Evaluation of the flavor components in enzymatically hydrolyzed apple juice demonstrated that the two pesticide residues could reduce the content of esters, alcohols, and acids by 6.75%, 4.64%, and 3.20%, respectively. Thus, pesticide residues would not only lead to a decrease in the juice yield and change in flavor but would also exhibit potential inhibitory effects on fruit ripening.
研究领域:
食品科学
·
生物化学
·
植物保护学
✓ 已验证
DOI
高影响因子
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
·
2019
·
IF 2.931
Yuan-Yuan Yuan,Shu-Tao Wang,Shi-Yu Liu,Qi Cheng,Zhi-Fang Wang,De-Ming Kong
Pesticides are among the most widespread organic contaminants in aquatic environments. In this work, a new green fluorescence application was proposed for the simultaneous determination of four widely employed pesticides in environmental water samples. To overcome the highly overlapped spectra within the analytes, and with the tissue matrix interferences in complex solutions, we have used the multivariate calibration methods such as parallel factor analysis (PARAFAC) and unfolded partial least squares coupled to residual bilinearization (U-PLS/RBL). These four pesticides can be identified simultaneously, and the correlation coefficients between resolved and actual spectra are all above 0.95. The second-order advantage allowed the determination of four pesticides at the ng mL − 1 level, even in the presence of humic acid (HA). The best results were obtained with the limits of detection of 1.72–18.69 for Carbendazim (CBZ), 0.30–5.19 for carbaryl (CAR), 0.35–6.32 for chlorothalonil (CHL), and 4.92–29.96 for tsumacide (TSU) (ng mL − 1 ), which can fully meet the quantitative detection and analysis requirements of trace pesticides in water samples. The real water sample of Bohai Seawater was used to check the performance of this approach in practical applications, which have achieved good prediction results of U-PLS/RBL. This study demonstrated the proposed method is rapid, accurate, sensitive, low detection limit, and environmentally friendly to determinate multi-pesticide residues in environmental water samples.
研究领域:
分析化学
·
环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2020
·Vol. 44
·期 29
·12779-12784
·
IF 3.288
Lili Kong,Meizhen Huang,Jie Chen,Mengshi Lin
This study developed a simple, efficient and environmentally friendly fabrication method for surface-enhanced Raman spectroscopy (SERS) wipers for the rapid detection of individual and mixed pesticide residues in real samples. Non-toxic NaCl was used to overcome the electrostatic repulsion between cotton swabs and AgNPs in the decorating process. Cotton swabs containing NaCl molecules were immersed in a silver colloid to synthesize a silver-decorated cotton swab (SERS wiper). The fabrication conditions were optimized to improve the performance of the SERS wiper. Under optimal conditions, AgNPs were evenly and densely distributed on cotton swabs within 10 min of the synthesis process. Raman reporter molecules (Rhodamine 6G) were tested and good results were obtained: sensitivity was 2 × 10−9 M, RSDs were within 7.5%, showing good reproducibility and uniformity, and the storage life reached 32 days. Thiabendazole (TBZ), thiram, and their mixture in bitter gourds were successfully detected using the “wipe sampling-detection” method coupled with the SERS wipers. The detection limits of TBZ and thiram were 1 ng cm−2. Multiple linear regression (MLR) and leave-one-out cross-validation methods were employed for quantitative analysis. The linear correlation coefficients of the predicted results and reference concentrations of individual and mixed pesticide residues in bitter gourds were all above 0.99, and the RMSEs were within 7 ng cm−2. These results indicate that the SERS wipers combined with MLR models could accurately and quantitatively detect individual and mixed pesticide residues in real samples.
研究领域:
分析化学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES
·
2019
·
IF 2.813
Yanwei Fu,Xiaowen Dou,Lei Zhang,Jiaan Qin,Meihua Yang,Jiaoyang Luo
Developing an analysis of multi-pesticide residues for different herbal species-ready applications is a challenge. In the present work, a comprehensive analysis was proposed for rapid detection of 201 pesticides in various medicinal herbs. Samples were extracted and cleaned up with a high throughput pretreatment approach (modified QuEChERS), and then detected by gas chromatograph coupled to an electron impact ionization triple quadrupole mass spectrometer (GC-EI-MS/MS). The clean-up procedure has been optimized using four types of representative medicinal herbs with different primary or secondary metabolites . Moreover, a mixture of analyte protectants (APs) was to improve the peak shape and intensity of some compounds. The performance of the method was validated according to the European Union SANTE/11813/2017 regulatory guidelines. The limit of quantification (LOQ) was determined to be ≤10 ng mL − 1 , and the recovery was between 70.0%–120.0%, with ≤20% RSD for the majority of pesticides. Sixty samples belonging to different species of medicinal herbs (such radix, flos, cortex, fructus, and seeds) were analyzed to evaluate the applicability of the optimized method. High frequency of chlorpyrifos was found in Citri reticulatae pericarpium, Crataegi fructus and Cuscutae semen samples.
研究领域:
分析化学
·
植物学
·
药物科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）