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Gao Z, Fan W, Zhang R, Li P, Yang X, Gao X, Ji X, Wei Y, Lai M. Synthesis, Thermal Stability and Antifungal Evaluation of Two New Pyrrole Esters. Chem Biodivers 2024; 21:e202301684. [PMID: 38224313 DOI: 10.1002/cbdv.202301684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 01/12/2024] [Accepted: 01/15/2024] [Indexed: 01/16/2024]
Abstract
To develop new chemicals that are stable at high temperatures with biological activity, a pyrrole intermediate was firstly synthesized using glucosamine hydrochloride as raw materials through cyclization and oxidation. Further, two novel pyrrole ester derivatives were prepared via Steglich esterification from pyrrole intermediate with vanillin and ethyl maltol, respectively. Nuclear magnetic resonance (1 H-NMR, 13 C NMR), infrared spectroscopy (IR) and high resolution mass spectrometry (HRMS) were used to confirm the target compounds. Thermal behavior of the compounds was investigated by thermogravimetry (TG), differential scanning calorimeter (DSC) and the pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) methods. The plausible pyrolytic mechanism was proposed. Additionally, their biological activities against the pathogens Fusarium graminearum, Fusarium oxysporum, Fusarium moniliforme, Phytophthora nicotianae, and Rhizoctonia solani were assessed. These target compounds showed outstanding antifungal activities and the highest inhibitor rates of 62.50 % and 68.75 % against R. solani with EC50 values of 0.0296 and 0.0200 mg mL-1 , respectively. SDHI protein sequence was molecularly docked to identify the binding mechanisms in the active pocket and examine the interactions between both the molecules and the SDHI protein.
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Affiliation(s)
- Ziting Gao
- Flavors and Fragrance Engineering & Technology Research Center of Henan Province, College of Tobacco Science, Henan Agricultural University, No. 218, Ping'an Avenue, Zhengdong New District, Zhengzhou, 450046, P. R. China
| | - Wenpeng Fan
- Flavors and Fragrance Engineering & Technology Research Center of Henan Province, College of Tobacco Science, Henan Agricultural University, No. 218, Ping'an Avenue, Zhengdong New District, Zhengzhou, 450046, P. R. China
- Hubei Zhongyan Industry Co. Ltd., WuHan, 430048, P. R. China
| | - Ruiting Zhang
- Co-construction State Key Laboratory of Wheat and Maize Crop Science, College of Agronomy, Henan Agricultural University, No. 218, Ping'an Avenue, Zhengdong New District, Zhengzhou, 450046, P. R China
| | - Pengyu Li
- Flavors and Fragrance Engineering & Technology Research Center of Henan Province, College of Tobacco Science, Henan Agricultural University, No. 218, Ping'an Avenue, Zhengdong New District, Zhengzhou, 450046, P. R. China
| | - Xiaopeng Yang
- Flavors and Fragrance Engineering & Technology Research Center of Henan Province, College of Tobacco Science, Henan Agricultural University, No. 218, Ping'an Avenue, Zhengdong New District, Zhengzhou, 450046, P. R. China
| | - Xue Gao
- Flavors and Fragrance Engineering & Technology Research Center of Henan Province, College of Tobacco Science, Henan Agricultural University, No. 218, Ping'an Avenue, Zhengdong New District, Zhengzhou, 450046, P. R. China
| | - Xiaoming Ji
- Flavors and Fragrance Engineering & Technology Research Center of Henan Province, College of Tobacco Science, Henan Agricultural University, No. 218, Ping'an Avenue, Zhengdong New District, Zhengzhou, 450046, P. R. China
| | - Yuewei Wei
- Flavors and Fragrance Engineering & Technology Research Center of Henan Province, College of Tobacco Science, Henan Agricultural University, No. 218, Ping'an Avenue, Zhengdong New District, Zhengzhou, 450046, P. R. China
| | - Miao Lai
- Flavors and Fragrance Engineering & Technology Research Center of Henan Province, College of Tobacco Science, Henan Agricultural University, No. 218, Ping'an Avenue, Zhengdong New District, Zhengzhou, 450046, P. R. China
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Yuan J, Feng Y, Hu Q, Kuang J, Cheng Z. A Ratio Fluorescence Method Based on Dual Emissive Copper Nanoclusters for the Detection of Vanillin. J Fluoresc 2024:10.1007/s10895-024-03582-3. [PMID: 38231366 DOI: 10.1007/s10895-024-03582-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 01/04/2024] [Indexed: 01/18/2024]
Abstract
In this study, a novel double-emission fluorescence probe at 340 and 400 nm was synthesized by one-pot method using phenylalanine (Phe) and ascorbic acid (AA) as stabilizing and reducing agents. It was found that the fluorescence intensity of the probe at 400 nm could be controlled by controlling the temperature within a certain range, and the ratio of double-emission fluorescence probe could be further regulated. Under the optimal conditions, the fluorescence intensity at 340 nm decreased significantly, while it only showed a slight decrease at 400 nm, which constituted the ratio fluorescence probe. The synthesized fluorescence probe showed good linearity in the range of 0.2-32 μM, and its detection limit was 63.4 nM. Moreover, the method was successfully employed to determine VA in vanilla drink and perfumes, and corresponding results were consistent with those of HPLC.
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Affiliation(s)
- Jingxue Yuan
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong, 637002, China
| | - Yao Feng
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong, 637002, China
| | - Qingqing Hu
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong, 637002, China
| | - Jianhua Kuang
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong, 637002, China
| | - Zhengjun Cheng
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong, 637002, China.
- Institute of Applied Chemistry, China West Normal University, Nanchong, 637002, China.
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3
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Zheng Z, Wei L, Zhu M, Qian Z, Liu J, Zhang L, Xu Y. Effect of lactic acid bacteria co-fermentation on antioxidant activity and metabolomic profiles of a juice made from wolfberry and longan. Food Res Int 2023; 174:113547. [PMID: 37986427 DOI: 10.1016/j.foodres.2023.113547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 09/29/2023] [Accepted: 10/01/2023] [Indexed: 11/22/2023]
Abstract
Lactic acid bacteria (LAB) fermentation is frequently employed to improve the nutritional, functional, and sensory characteristics of foods. Our study explored the effects of co-fermentation with Lacticaseibacillus paracasei ZH8 and Lactococcus lactis subsp. lactis YM313 on the physicochemical properties, antioxidant activity, and metabolomic profiles of wolfberry-longan juice (WLJ). Fermentation was carried out at 35 °C for 15 h. The results suggest that WLJ is a favorable substrate for LAB growth, reaching a total viable count exceeding 8 log CFU/mL after fermentation. LAB fermentation increased acidity, reduced the sugar content, and significantly impacted the juice color. The total phenolic and flavonoid contents of the WLJ and the antioxidant capacities based on 2,2-diphenyl-1-picrylhydrazyl (DPPH), ABTS radical scavenging abilities and FRAP were significantly improved by LAB fermentation. Nontargeted metabolomics analysis suggested that the contents of small molecule substances in WLJ were considerably affected by LAB fermentation. A total of 374 differential metabolites were identified in the juice before and after fermentation, with 193 significantly upregulated metabolites and 181 siginificantly downregulated metabolites. The regulation of metabolites is important for improving the flavor and functions of juices, such as L-eucylproline, Isovitexin, Netivudine, 3-Phenyllactic acid, vanillin, and ethyl maltol, ect. This study provides a theoretical foundation for developing plant-based foods fermented with LAB.
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Affiliation(s)
- Zhenjie Zheng
- College of Food and Health, Jinzhou Medical University, Jinzhou 121000, China.
| | - Linya Wei
- College of Food and Health, Jinzhou Medical University, Jinzhou 121000, China.
| | - Manli Zhu
- College of Food and Health, Jinzhou Medical University, Jinzhou 121000, China.
| | - Zhenning Qian
- College of Food and Health, Jinzhou Medical University, Jinzhou 121000, China.
| | - Jiao Liu
- College of Food and Health, Jinzhou Medical University, Jinzhou 121000, China.
| | - Lili Zhang
- College of Food and Health, Jinzhou Medical University, Jinzhou 121000, China.
| | - Yunhe Xu
- College of Food and Health, Jinzhou Medical University, Jinzhou 121000, China.
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Du H, Duan Y, Ai J, Kong D, Wang D, Hu H, Wang H, Yang Y. Electrochemical determination of ethylvanillin based on LaV@GAC nanocomposite. ANAL SCI 2023; 39:2049-2058. [PMID: 37668882 DOI: 10.1007/s44211-023-00422-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 08/24/2023] [Indexed: 09/06/2023]
Abstract
Ethyl vanillin (EVA) is widely used as a flavor additive in foods, and sensitive monitoring of EVA is of great significance for food safety. In this paper, the biomass of gum arabic derived carbon (GAC) coated with lanthanum vanadate (LaV) was constructed for the EVA sensor based on the synergistic effects of the electrochemical catalytic ability of LaV, the enhanced electrical conductivity with the GAC coating and the oxygen-containing functional groups in LaV@GAC. The as-developed LaV@GAC sensor showed a remarkable linear range from 0.06 μM to 100 μM and a low detection limit (LOD) of 6.28 nM. The electrochemical oxidation of EVA is limited by a diffusion-controlled process involving 2 electrons and 2 protons. Moreover, the LaV@GAC sensor has good recoveries (94.5-103.05%) for the detection of EVA in real milk powder samples. The proposed LaV@GAC sensor has good repeatability, high stability, and great potential for sensitive detection of flavor additives in food.
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Affiliation(s)
- Haijun Du
- School of Chemical Engineering, Guizhou Minzu University, Guiyang, 550025, Guizhou, China
- Laboratory of Xinjiang Native Medicinal and Edible Plant Resources Chemistry, Kashi University, Kashi, Xinjiang, 844000, People's Republic of China
| | - Yu Duan
- School of Chemical Engineering, Guizhou Minzu University, Guiyang, 550025, Guizhou, China
| | - Jixing Ai
- School of Chemical Engineering, Guizhou Minzu University, Guiyang, 550025, Guizhou, China
| | - Dabin Kong
- School of Chemical Engineering, Guizhou Minzu University, Guiyang, 550025, Guizhou, China
| | - Dexiang Wang
- School of Chemical Engineering, Guizhou Minzu University, Guiyang, 550025, Guizhou, China
| | - Huali Hu
- School of Chemical Engineering, Guizhou Minzu University, Guiyang, 550025, Guizhou, China
| | - Hong Wang
- Laboratory of Xinjiang Native Medicinal and Edible Plant Resources Chemistry, Kashi University, Kashi, Xinjiang, 844000, People's Republic of China
| | - Yang Yang
- School of Mechanical Engineering, Chengdu University, Chengdu, 610106, Sichuan, China.
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Mei F, Wang H, Zhang Y, Zhang M, Zhou S, Shi H, Jiang Y. Development and Validation of a Stable Isotope Dilution Headspace-SPME-GC/MS Method for the Determination of Vanillin in Fragrant Vegetable Oils. Molecules 2023; 28:7288. [PMID: 37959708 PMCID: PMC10650462 DOI: 10.3390/molecules28217288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 10/22/2023] [Accepted: 10/25/2023] [Indexed: 11/15/2023] Open
Abstract
It has been reported that vanillin has been intentionally added to enhance the taste and flavor of low-quality vegetable oils. Therefore, it is crucial to investigate the accurate concentrations of vanillin in three types of fragrant vegetable oils commonly consumed in China. In this study, a method has been developed for the quantification of vanillin in commercial fragrant vegetable oils using the stable isotope dilution assay (SIDA) and headspace-solid-phase microextraction (HS-SPME) coupled with gas chromatography/mass spectrometry (GC/MS). The limit of detection (LOD) and limit of quantification (LOQ) of the analyte were determined to be 20 µg kg-1 and 50 µg kg-1, respectively. The validation study demonstrated that the recoveries ranged from 89% to 101%, with intra-day and inter-day precision being less than 7.46%. A survey of 80 commercially available fragrant vegetable oils was performed using the present method. Vanillin was found to be widely present in fragrant vegetable oils, with sesame oils showing the highest average content (842.6 µg kg-1), followed by rapeseed oils (262.1 µg kg-1) and peanut oils (115.0 µg kg-1). The results indicate that the proposed method is a simple, accurate, and eco-friendly approach for determining the presences of vanillin in fragrant vegetable oils.
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Affiliation(s)
- Fangyi Mei
- Wilmar (Shanghai) Biotechnology Research & Development Center Co., Ltd., Shanghai 200137, China (S.Z.)
| | - Hongling Wang
- Wilmar (Shanghai) Biotechnology Research & Development Center Co., Ltd., Shanghai 200137, China (S.Z.)
| | - Yuquan Zhang
- Wilmar (Shanghai) Biotechnology Research & Development Center Co., Ltd., Shanghai 200137, China (S.Z.)
| | - Mei Zhang
- Yihai Kerry (Qingdao) Oils & Grains Industries Co., Ltd., Qingdao 266321, China
| | - Shuai Zhou
- Wilmar (Shanghai) Biotechnology Research & Development Center Co., Ltd., Shanghai 200137, China (S.Z.)
| | - Haiming Shi
- Wilmar (Shanghai) Biotechnology Research & Development Center Co., Ltd., Shanghai 200137, China (S.Z.)
| | - Yuanrong Jiang
- Wilmar (Shanghai) Biotechnology Research & Development Center Co., Ltd., Shanghai 200137, China (S.Z.)
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Yu HP, Ren HB, Cui YY, Yang CX. Room-temperature synthesis of dual-functionalized magnetic microporous organic network for efficient extraction of vanillins in food. Talanta 2023; 257:124391. [PMID: 36854206 DOI: 10.1016/j.talanta.2023.124391] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 02/20/2023] [Accepted: 02/21/2023] [Indexed: 02/26/2023]
Abstract
Microporous organic networks (MONs) are promising materials for the magnetic solid-phase extraction (MSPE) of trace targets from diverse complex samples. However, all the reported magnetic MONs (MMONs) are mono-functionalized and synthesized by refluxing at high temperatures, which is not an energy-efficient and environmentally friendly method. Here, for the first time, we report the room-temperature fabrication of a novel dual-functionalized MMON (MMON-B) for the efficient MSPE of typical vanillin additives from food samples prior to high-performance liquid chromatography (HPLC). The conjugated MMON-B with numerous -OH and -NH2 groups afforded good extraction for vanillins via π-π, hydrophobic, and hydrogen-bonding interactions. The factors affecting the extraction were studied in detail. Under the optimal conditions, the developed MMON-B-MSPE-HPLC-UV method exhibited wide linear range (0.50-1200 μg L-1), low limits of detection (0.10-0.15 μg L-1), and good reusability and stability. Therefore, MMON-B was successfully used to enrich vanillins in complex food samples. The morphology and extraction efficiency of the room-temperature synthesized MMON-B were comparable with those of the MMON-B synthesized via the conventional reflux method, indicating that the room-temperature fabrication method is a good alternative to the reflux method. This study presents the feasibility of using a room-temperature method for synthesizing dual-functionalized MONs, and the findings may significantly promote the application of MONs in the MSPE of trace targets from complex matrices.
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Affiliation(s)
- Hui-Ping Yu
- College of Chemistry, Research Center for Analytical Sciences, Nankai University, Tianjin, 300071, China
| | - Hu-Bo Ren
- Quality Supervision & Test Center, China National Tobacco Corporation Shandong Branch, Jinan, 250098, China
| | - Yuan-Yuan Cui
- School of Pharmaceutical Sciences, Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, 250117, China
| | - Cheng-Xiong Yang
- School of Pharmaceutical Sciences, Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, 250117, China.
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7
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Sensory-directed establishment of sensory wheel and characterization of key aroma-active compounds for spicy tallow hot pot seasoning. Food Chem 2022. [DOI: 10.1016/j.foodchem.2022.134904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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8
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Chen Y, Liu G, Lu X, Wang X. A water-stable new luminescent Cd(Ⅱ) coordination polymer for rapid and luminescent/visible sensing of vanillin in infant formula. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.121051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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9
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Mir JM, Malik BA, Khan MW. Glucosamine and maltol anchored Zinc(II) complex of COVID-19 health supplement relevance: DFT collaborated spectroscopic formulation with profound biological implications. J INDIAN CHEM SOC 2022. [PMCID: PMC9554624 DOI: 10.1016/j.jics.2022.100743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
In association with other antiviral drugs, Zinc is specially administered to the patients suffering from novel coronavirus infectious disease (nCOVID). Zn, maltol, and glucosamine are famous food and drug additives. The supplements made from them are helpful in minimizing malnutrition problems, and in enhancing immune power. Due to the well-pronounced effects of all these three components in the food and medicinal industry, a novel sugar Zn(II) complex of the general composition, [Zn(gls)(mal)], where Hmal is maltol and Hgls is referred to as glucosamine, was synthesized and formulated. The physicochemical methods that were used to establish the molecular structure include elemental analysis, 1HNMR, FT-IR, UV–Vis., thermal and mass spectrometry. Physical properties like decomposition temperature and molar conductance were also examined. The experimental results at each step of characterization were validated/compared with density functionalized spectroscopic/spectrometric data using the LANL2DZ basis set for the metal atom and 6–31 g(d,p) for other atoms under the B3LYP functional. From the study, a suitable square planar geometry is suggested for the complex. Among biological implications, superoxide dismutation (SOD) and antimicrobial actions were studied. Also, virtual screening using SWISS ADME and Autodock 4.0 program (against 6X2B, SARS-CoV-2 u1S2q 2 RBD Up Spike Protein Trimer) were evaluated for the complex. Good interactions were scored by glucosamine and the complex. The results obtained from antimicrobial sensitivity indicate low inhibition zones, but from the SOD data, the complex has shown satisfactory antioxidant behavior. Therefore, the proposed food supplement could act as a good antioxidant agent and could keep the flora of the intestinal tract less disturbed while going through a metabolic pathway.
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Wang M, Lu Y, Yang Y, Yu J, Chen Y, Tu F, Hou J, Yang Z, Jiang X. Source identification of vanillin in sesame oil by HPLC-MS/MS. Food Control 2022. [DOI: 10.1016/j.foodcont.2022.109283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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11
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Simultaneous determination of multiple flavorings in infant formula by direct analysis in real time-mass spectrometry. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.113586] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Luo X, Wang X, Du M, Xu X. Dispersive Liquid-Liquid Microextraction Followed by HS-SPME for the Determination of Flavor Enhancers in Seafood Using GC-MS. Foods 2022; 11:foods11101507. [PMID: 35627077 PMCID: PMC9140692 DOI: 10.3390/foods11101507] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 05/20/2022] [Accepted: 05/20/2022] [Indexed: 02/01/2023] Open
Abstract
The determination of flavor compounds using headspace solid-phase microextraction (HS-SPME) combined with gas chromatography–mass spectrometry (GC-MS) can be severely interfered with by complex food matrices in food systems, especially solid samples. In this study, dispersive liquid-liquid microextraction (DLLME) was applied prior to HS-SPME to efficiently reduce the matrix effect in solid seafood samples. The method had high sensitivity (the quantification limits of maltol and ethyl maltol were 15 and 5 μg/kg, respectively), an excellent linear relationship (R2 ≥ 0.996), and the sample recovery rate was 89.0–118.6%. The relative standard deviation (RSD %) values for maltol and ethyl maltol were lower than 10%. Maltol (from 0.7 to 2.2 μg/g) and ethyl maltol (from 0.9 to 34.7 μg/g) in seafood were detected in the selected samples by the developed method. Finally, DLLME coupled with HS-SPME effectively removed the influence of sample matrix and improved the sensitivity of the method. The developed method was applicable in the analysis of flavor enhancers in complex matrix foods.
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Zhang Y, Feng YS, Ren XH, He XW, Li WY, Zhang YK. Bimetallic molecularly imprinted nanozyme: Dual-mode detection platform. Biosens Bioelectron 2021; 196:113718. [PMID: 34673481 DOI: 10.1016/j.bios.2021.113718] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 09/27/2021] [Accepted: 10/14/2021] [Indexed: 02/07/2023]
Abstract
Molecularly imprinted polymer nanozyme (MIL-101(Co,Fe)@MIP) with bimetallic active sites and high-efficiency peroxidase-like (POD-like) activity were synthesized for the ratiometric fluorescence and colorimetric dual-mode detection of vanillin with high selectivity and sensitivity. Compared with the monometallic nanozyme, the POD-like activity of bimetallic nanozyme was greatly enhanced by changing the electronic structure and surface structure. Ratiometric fluorescence and colorimetric dual-mode detection of vanillin in aqueous solution was realized by vanillin entering specific imprinted cavities and blocking the molecular channels on the surface of MIL-101(Co,Fe)@MIP and the dual-mode visual detection was also realized. The limits of detection were as low as 104 nM and 198 nM, respectively. The method proposed in this paper was applied to the real samples of ice cream and candy. And the recoveries were between 93.3% and 105.5%, which also reached a satisfactory degree. The further detection of dexamethasone and prednisone, two drugs belonging to glucocorticoid, proved that the nanozyme analysis method based on MIL-101(Co,Fe)@MIP could be developed into a sensing platform.
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Affiliation(s)
- Yan Zhang
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Research Center for Analytical Sciences, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Yu-Sheng Feng
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Research Center for Analytical Sciences, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Xing-Hui Ren
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Research Center for Analytical Sciences, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Xi-Wen He
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Research Center for Analytical Sciences, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Wen-You Li
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Research Center for Analytical Sciences, College of Chemistry, Nankai University, Tianjin, 300071, China.
| | - Yu-Kui Zhang
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Research Center for Analytical Sciences, College of Chemistry, Nankai University, Tianjin, 300071, China; National Chromatographic Research and Analysis Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
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14
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Dong M, Zhao S, Lv Y, Chen F, Wang A, Fu L, Lin CT. Electroanalytical determination of vanillin using PdZn particles decorated ZnS fibers. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2021. [DOI: 10.1007/s11694-021-01025-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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15
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Qu B, Jiang J, Mao X, Dong G, Liu Y, Li L, Zhao H. Simultaneous determination of vanillin, ethyl vanillin and methyl vanillin in Chinese infant food and other dairy products by LC-MS/MS. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2021; 38:1096-1104. [PMID: 33938405 DOI: 10.1080/19440049.2021.1902573] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
An efficient and simple method for determining vanillin, methyl vanillin and ethyl vanillin in milk and dairy products was developed using a liquid-liquid extraction (LLE) procedure coupled to high-performance liquid chromatography-tandem mass spectrometry (LC-MS/MS). Different extraction procedures were tested and optimised by spiking three vanillin compounds into a blank matrix in which none of any food additives were detected, and the extraction with acetonitrile solution and n-hexane as cleaning sorbent allowed an efficient recovery of 87.6-101.7% with RSDs less than 5%. The limit of detection (LOD) ranged from 6.2 to 20.1 μg/kg. High sensitivity, accuracy and selectivity were found for the in-house validated method, which can eliminate the interferences from complicated matrices effectively, and fulfil the quality criteria for routine laboratory application for real samples. The developed method was then finally applied to screen the three analytes in 65 milk and dairy products including infant formula milk powders from local markets to check for compliance with Chinese Regulation. Concentrations of the total vanillin and ethyl vanillin ranged from 0.0323 to 246.3 mg/kg, which is within the limits of Chinese regulations.
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Affiliation(s)
- Baocheng Qu
- Dalian Ocean University, Dalian, China.,Key Laboratory of Environment Controlled Aquaculture, Ministry of Education, Dalian, China
| | - Jingqiu Jiang
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Dalian, China
| | - Xiqin Mao
- Dalian Center for Certification and Food and Drug Control, Dalian, China
| | - Guangbin Dong
- Dalian Center for Certification and Food and Drug Control, Dalian, China
| | - Yijun Liu
- Dalian Ocean University, Dalian, China
| | - Li Li
- Dalian Center for Certification and Food and Drug Control, Dalian, China
| | - Hongxia Zhao
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Dalian, China
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16
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Zhu S, Bai X, Wang T, Shi Q, Zhu J, Wang B. One-step synthesis of fluorescent graphene quantum dots as an effective fluorescence probe for vanillin detection. RSC Adv 2021; 11:9121-9129. [PMID: 35423426 PMCID: PMC8695316 DOI: 10.1039/d0ra10825a] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2020] [Accepted: 02/19/2021] [Indexed: 11/23/2022] Open
Abstract
This study proposes an easy bottom-up method for the synthesis of photoluminescent (PL) graphene quantum dots (GQDs) using citric acid as the carbon source. The obtained GQDs were characterized by high-resolution transmission electron microscopy (HRTEM), UV-vis absorption spectroscopy, fluorescence spectroscopy, and Fourier transform infrared spectroscopy (FT-IR). The synthesised GQDs have an average diameter of 4.76 ± 0.96 nm, with a lattice spacing of 0.24 nm. The GQDs exhibit excitation-independent PL emission. The surface of the GQDs has a variety of functional groups (hydroxyl, carboxyl, and ether groups etc.) to enhance its stability and water solubility. In this study, a fluorescent "on-off" sensor is developed for the selective detection of vanillin in chocolates using GQDs as a fluorescent probe. Under optimal conditions, fluorescence intensity of the GQDs has a good linear relationship with the vanillin concentration (0.0-2.1 × 10-5 mol L-1), with a limit of detection of 2.5 × 10-8 mol L-1. For detection in real samples, the percent recovery of vanillin and the relative standard deviation were 88.0-108.9% and 0.90-5.4%, respectively. Thus, this GQDs-based method has good accuracy and precision and can be used for vanillin detection in practical applications.
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Affiliation(s)
- Sujuan Zhu
- College of Bioscience and Biotechnology, Yangzhou University Yangzhou Jiangsu 225009 P. R. China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University Yangzhou Jiangsu 225009 China
| | - Xuexue Bai
- College of Bioscience and Biotechnology, Yangzhou University Yangzhou Jiangsu 225009 P. R. China
| | - Ting Wang
- College of Bioscience and Biotechnology, Yangzhou University Yangzhou Jiangsu 225009 P. R. China
| | - Qiang Shi
- College of Bioscience and Biotechnology, Yangzhou University Yangzhou Jiangsu 225009 P. R. China
| | - Jing Zhu
- College of Bioscience and Biotechnology, Yangzhou University Yangzhou Jiangsu 225009 P. R. China
| | - Bing Wang
- Center for Disease Control and Prevention Yangzhou Jiangsu 225009 P. R. China
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