Food Analytical Methods最新文献_第9页

Determination of Bioactive Compounds in Buriti Oil by Prediction Models Through Mid-infrared Spectroscopy 通过中红外光谱预测模型测定布里提油中的生物活性化合物

IF 2.6 3区农林科学

Food Analytical Methods Pub Date : 2024-08-19 DOI: 10.1007/s12161-024-02658-x

Braian Saimon Frota da Silva, Nelson Rosa Ferreira, Renan Campos Chisté, Cláudio Nahum Alves

{"title":"Determination of Bioactive Compounds in Buriti Oil by Prediction Models Through Mid-infrared Spectroscopy","authors":"Braian Saimon Frota da Silva, Nelson Rosa Ferreira, Renan Campos Chisté, Cláudio Nahum Alves","doi":"10.1007/s12161-024-02658-x","DOIUrl":"10.1007/s12161-024-02658-x","url":null,"abstract":"<div><p>Buriti oil is a vegetable oil extracted from the pulp and seeds of buriti (<i>Mauritia flexuosa</i> L.), a palm commonly found in the Amazon region, and is used both in popular medicine and in the cosmetic and food industries. This work aimed to develop a faster and more accessible procedure to quantify the content of carotenoids, polyphenols, and total flavonoids in buriti oils, where predictive models emphasize figures of merit. The study was carried out with 50 buriti oil samples from the state of Pará, Brazil, which were sampled by combining attenuated total reflection (ATR) spectroscopy with mid-infrared Fourier transform (FT-MIR) together with partial least squares regression (PLSR). The confidence and validation matrix were obtained from ultraviolet–visible spectroscopy. The PLSR model regarding the total carotenoid content presented values between 335.33 and 1557.05 μg/g was validated by the concentration demonstration coefficient (<i>R</i><sup>2</sup>cal) equal to 0.9556, prediction demonstration coefficient (<i>R</i><sup>2</sup><sub>pred</sub>) equal to 0.85642, bias = 5.68.10<sup>−13</sup>, performance deviation ratio value (RDP) of 2.0135, and range error rate (RER) equal to 4.3747. Concentrations of phenolic compounds were predicted between 96.2964 and 121.857 GAE/100 g, where the model presented <i>R</i><sup>2</sup><sub>cal</sub> = 0.9762, <i>R</i><sup>2</sup><sub>pred</sub> = 0.8198, bias = 3.38.10<sup>−10</sup>, RDP = 5.9028, and RER = 5.7578. The flavonoid prediction model contains concentrations between 86.844 and 133.852 mg EC/100 g that circulate <i>R</i><sup>2</sup><sub>cal</sub> = 0.9445, <i>R</i><sup>2</sup><sub>pred</sub> = 0.8536, bias = 6.98.10<sup>−8</sup>, RDP = 6.7085, and RER = 6.7085. Buriti oil showed high levels of b-carotene. Prediction models are overwhelming and can be used for screening and quality control of natural products.</p></div>","PeriodicalId":561,"journal":{"name":"Food Analytical Methods","volume":"17 9","pages":"1359 - 1372"},"PeriodicalIF":2.6,"publicationDate":"2024-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12161-024-02658-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142209561","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Sustainable Nanomaterial Based on Gold Nanoparticles and Graphene for Highly Sensitive Electrochemical Sensing of Caffeic Acid in Coffees 一种基于金纳米颗粒和石墨烯的可持续纳米材料，用于高灵敏度电化学检测咖啡中的咖啡酸

IF 2.6 3区农林科学

Food Analytical Methods Pub Date : 2024-08-17 DOI: 10.1007/s12161-024-02668-9

Diogo Emanoel Felix dos Santos, Luan Gabriel Baumgarten, Eduardo Constante Martins, Juliana Priscila Dreyer, Edson Roberto Santana, João Paulo Winiarski, Iolanda Cruz Vieira

{"title":"A Sustainable Nanomaterial Based on Gold Nanoparticles and Graphene for Highly Sensitive Electrochemical Sensing of Caffeic Acid in Coffees","authors":"Diogo Emanoel Felix dos Santos, Luan Gabriel Baumgarten, Eduardo Constante Martins, Juliana Priscila Dreyer, Edson Roberto Santana, João Paulo Winiarski, Iolanda Cruz Vieira","doi":"10.1007/s12161-024-02668-9","DOIUrl":"10.1007/s12161-024-02668-9","url":null,"abstract":"<div><p>Caffeic acid contributes to the flavor and aroma of coffee. Monitoring its levels can be important to guarantee the quality of the coffee produced. An innovative electrochemical sensor for the determination of caffeic acid was developed using banana pulp (<i>Musa sapientum</i>) extract as the precursor for the green synthesis of gold nanoparticles. Microscopic images verified the presence of dispersed gold nanoparticles, with an average diameter of 14.4 ± 2.5 nm on graphene sheets. The electrochemical behavior of caffeic acid demonstrated reversibility, with oxidation and reduction peaks. Under optimized conditions, a calibration curve was developed in 0.1 mol L<sup>−1</sup> Britton-Robinson buffer (pH 2.0) with linear range from 0.05 to 10.0 µmol L<sup>−1</sup>, and a detection limit of 16 nmol L<sup>−1</sup>. The sensor was effective in coffee samples, and the results were comparable to those obtained using UV–vis spectrometry.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":561,"journal":{"name":"Food Analytical Methods","volume":"17 9","pages":"1348 - 1358"},"PeriodicalIF":2.6,"publicationDate":"2024-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142209563","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multivariate Optimization of an Analytical Method for Bisulfite Determination in Vinegar Samples Using Digital Images 利用数字图像对测定食醋样品中亚硫酸氢盐含量的分析方法进行多元优化

IF 2.6 3区农林科学

Food Analytical Methods Pub Date : 2024-08-16 DOI: 10.1007/s12161-024-02665-y

Joseane G. de Jesus, Marcos Levi C. M. dos Reis, Alailson F. Dantas, Leonardo S. G. Teixeira, Fabio de S. Dias

{"title":"Multivariate Optimization of an Analytical Method for Bisulfite Determination in Vinegar Samples Using Digital Images","authors":"Joseane G. de Jesus, Marcos Levi C. M. dos Reis, Alailson F. Dantas, Leonardo S. G. Teixeira, Fabio de S. Dias","doi":"10.1007/s12161-024-02665-y","DOIUrl":"10.1007/s12161-024-02665-y","url":null,"abstract":"<div><p>This work proposes an analytical method based on digital images to indirectly determine bisulfite in vinegar samples using the colorimetric reaction between Fe(II) and the complexing agent 2,2′-bipyridine. Optimization was conducted using a multivariate methodology. Firstly, a two-level full factorial design was performed to identify the factors with significant effects on the analytical response through a two-level full factorial design (2<sup>3</sup>). The studied variables included pH, 2,2′-bipyridine concentration, and sample volume. Subsequently, a Doehlert matrix was employed to establish the optimal conditions for the significant variables. The recommended procedure involved a reaction pH of 5.7 and a 0.0038 mol L<sup>−1</sup> 2,2′-bipyridine concentration, with a sample volume of 0.75 mL. The proposed method exhibited a linear response within the range of 0.45 to 300 mg L<sup>−1</sup> of bisulfite, with detection and quantification limits of 0.15 mg L<sup>−1</sup> and 0.45 mg L<sup>−1</sup>, respectively. The method’s precision, assessed through relative standard deviation, was 3.4% (<i>n</i> = 10, 1.0 mg L<sup>−1</sup>). Accuracy was evaluated through recovery tests, with results ranging from 97 to 114%. Furthermore, a comparison was made between the bisulfite concentrations determined using the proposed method and those obtained through a reference method based on iodometric titration. The method was successfully applied to determine bisulfite in commercial vinegar samples. The bisulfite concentration varied from (14 ± 1) mg L<sup>−1</sup> to (261 ± 3) mg L<sup>−1</sup>.</p></div>","PeriodicalId":561,"journal":{"name":"Food Analytical Methods","volume":"17 9","pages":"1327 - 1335"},"PeriodicalIF":2.6,"publicationDate":"2024-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142209562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Oil Adulteration Evaluation Using High Performance Thin Layer Chromatography 使用高效薄层色谱法评估油品掺假情况

IF 2.6 3区农林科学

Food Analytical Methods Pub Date : 2024-08-16 DOI: 10.1007/s12161-024-02659-w

Paul Rogeboz, Hélia Latado, Ajay Sharma, Neha Chaubey, Shalu Kadian, Enrico Chavez, Thi Kieu Tiên Do, Mathieu Dubois, Francesca Giuffrida, Amaury Patin, Maricel Marin-Kuan

{"title":"Oil Adulteration Evaluation Using High Performance Thin Layer Chromatography","authors":"Paul Rogeboz, Hélia Latado, Ajay Sharma, Neha Chaubey, Shalu Kadian, Enrico Chavez, Thi Kieu Tiên Do, Mathieu Dubois, Francesca Giuffrida, Amaury Patin, Maricel Marin-Kuan","doi":"10.1007/s12161-024-02659-w","DOIUrl":"10.1007/s12161-024-02659-w","url":null,"abstract":"<div><p>Assessment of food authenticity from upstream in the supply chain is critical for the food industry. Environmental challenges and geo-political situations are causing shortages of raw materials resulting in a potential risk for food fraud. An example of this issue is the adulteration of edible oils by the addition of low-price oil, frying oil, or even non-edible grade oils mixtures threatening foods industries, consumer safety, and trust. Reliable screening tools to assess raw materials authenticity are therefore needed. Assessment of an improved alternative approach using high performance thin layer chromatography (HPTLC) is shown as a tool to evaluate edible oil authenticity and adulteration. Two methods were tested including an untargeted method based on fingerprints profiling for detection of adulteration with vegetable oil and a targeted method for mineral oil adulteration detection (e.g., paraffin wax). Statistical analysis was applied to determine acceptance criteria range to assess variability, limit of adulteration detection, and reproducibility. The robustness of the method was tested within an interlaboratory study using palm oil. Detection of adulteration with edible oils was achieved at levels from 5 to 25% while < 5% was predicted for mineral oils adulteration. Both methods showed promising results in terms of adulteration detection capability making this approach a reliable, and efficient tool to assess and monitor edible oils quality with added value in the field.</p></div>","PeriodicalId":561,"journal":{"name":"Food Analytical Methods","volume":"17 9","pages":"1336 - 1347"},"PeriodicalIF":2.6,"publicationDate":"2024-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12161-024-02659-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142209568","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Application of Steady-State and Time-Resolved Fluorescence Spectroscopy in Identification of Bee Products 稳态和时间分辨荧光光谱法在蜜蜂产品鉴定中的应用

IF 2.6 3区农林科学

Food Analytical Methods Pub Date : 2024-08-14 DOI: 10.1007/s12161-024-02667-w

Beata Szukay, Krystian Gałęcki, Agnieszka Kowalska-Baron, Jacek Budzyński, Jacek J. Fisz

{"title":"Application of Steady-State and Time-Resolved Fluorescence Spectroscopy in Identification of Bee Products","authors":"Beata Szukay, Krystian Gałęcki, Agnieszka Kowalska-Baron, Jacek Budzyński, Jacek J. Fisz","doi":"10.1007/s12161-024-02667-w","DOIUrl":"10.1007/s12161-024-02667-w","url":null,"abstract":"<div><p>In this study, steady-state and time-resolved fluorescence spectroscopy techniques have been applied to determine fluorescence characteristics and fluorescence decay kinetics parameters (fluorescence lifetimes and their amplitudes) of available on the Polish market bee products, including several nectar honeys, royal jelly, bee bread in honey and in liquid artificial honey. The fluorescence properties of the tested bee products arise from the presence of a unique composition of aromatic amino acids, vitamins, phenolic compounds and Maillard reaction products. In the 300–550 nm region of the emission spectra (excited at 280 nm), each of the tested bee products exhibited (showed) a specific and distinctive vibronic structure, which was not observed in the spectrum of artificial honey. Quantitative and qualitative composition as well as specific interactions between fluorescent constituents determine the specific fluorescence characteristics of a given bee product providing a unique fingerprint that can be used in the identification of bee products of different botanical origin. Combination of stationary and time-resolved fluorescence techniques seems to be a promising approach in the identification, authentication and quality control of bee products to verify their health-beneficial properties.</p></div>","PeriodicalId":561,"journal":{"name":"Food Analytical Methods","volume":"17 9","pages":"1312 - 1326"},"PeriodicalIF":2.6,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12161-024-02667-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142209569","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Rapid detection of OTA and ZEN with dual quantum dots fluorescence immunochromatographic test strip 利用双量子点荧光免疫层析试纸条快速检测 OTA 和 ZEN

IF 2.6 3区农林科学

Food Analytical Methods Pub Date : 2024-08-13 DOI: 10.1007/s12161-024-02662-1

Qingbao Yang, Huawen Yan, Yumei Chen, Enping Liu, Chao Liang, Jingming Zhou, Aiping Wang

{"title":"Rapid detection of OTA and ZEN with dual quantum dots fluorescence immunochromatographic test strip","authors":"Qingbao Yang, Huawen Yan, Yumei Chen, Enping Liu, Chao Liang, Jingming Zhou, Aiping Wang","doi":"10.1007/s12161-024-02662-1","DOIUrl":"10.1007/s12161-024-02662-1","url":null,"abstract":"<div><p>Mycotoxin contamination in agri-food systems has been a serious global concern over the past few decades. Corn is easily contaminated by Ochratoxin A (OTA) and Zearalenone (ZEN), which seriously threaten the survival and health of humans and animals. Herein, a rapid and sensitive method of OTA and ZEN dual quantum dots (QDs) fluorescence immunochromatographic test strip was established in this study. OTA and ZEN fluorescence probes were prepared by carbodiimide. The OTA-OVA, ZEN-BSA and staphylococcal protein A were sprayed on the nitrocellulose filter membrane as the T1 line, T2 line and control line of the dual test strip, which exhibited high sensitivity, accuracy and specificity. For quantitative detection of OTA, the linear regression equation was y = 0.3222x + 0.3834 (R<sup>2</sup> = 0.9687), LOD and IC<sub>50</sub> were 0.132 ng/mL and 2.296 ng/mL, and the linear detection range was 0.269 ng/mL to 19.588 ng/mL. In addition, for quantitative detection of ZEN, its linear regression equation was y = 0.3077x + 0.3777 (R<sup>2</sup> = 0.9648), LOD and IC<sub>50</sub> were 0.125 ng/mL and 2.495 ng/mL, and the linear detection range was 0.264 ng/mL to 23.55 ng/mL. Briefly, the OTA and ZEN dual QDs immunochromatographic test strip was favored for the simultaneous detection of OTA and ZEN in corn.</p></div>","PeriodicalId":561,"journal":{"name":"Food Analytical Methods","volume":"17 9","pages":"1302 - 1311"},"PeriodicalIF":2.6,"publicationDate":"2024-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142209675","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

QuEChERS Method for Simultaneous Analysis of Tetracyclines from Chicken by HPLC–DAD 用 HPLC-DAD 同时分析鸡肉中四环素的 QuEChERS 方法

IF 2.6 3区农林科学

Food Analytical Methods Pub Date : 2024-08-12 DOI: 10.1007/s12161-024-02663-0

João Victor Morais Gurgel, Luciane Effting, Diego Galvan, Carlos Eduardo Domingues Nazário

{"title":"QuEChERS Method for Simultaneous Analysis of Tetracyclines from Chicken by HPLC–DAD","authors":"João Victor Morais Gurgel, Luciane Effting, Diego Galvan, Carlos Eduardo Domingues Nazário","doi":"10.1007/s12161-024-02663-0","DOIUrl":"10.1007/s12161-024-02663-0","url":null,"abstract":"<div><p>Tetracyclines (TCs) are among the most widely used antibiotics worldwide for treating bacterial infections (both Gram-positive and Gram-negative) in humans and animals. In Brazil, chicken is one of the most produced and traded meats, with TCs being the primary antibiotics used in its production. This study applied two experimental designs to optimize the QuEChERS method for simultaneous quantitative analysis by HPLC–DAD of three TCs (tetracycline, chlortetracycline, and oxytetracycline) in chicken. The optimized conditions of the QuEChERS method for the preconcentration of TCs were 500 mg of sample, 1000 mg of Na<sub>2</sub>SO<sub>4</sub>, 700 mg of NaCl, 100 mg C18, 100 mg of PSA in 10 mL of the extracting solvent, vortex for 1 min, and centrifugation 4000 rpm for 5 min with a total run time of 10 min. LOQ values were lower than the MRL for all antibiotics established by ANVISA, precision in intra-day and inter-day ranged from 0.1 to 5.0%, and recovery ranged from 80 to 101%, greatly improving the work efficiency. The analytical method was applied to four commercial chicken breast samples and other proteins, one for beef and one for pork, of which no residues were found. The “GREEnness” of the optimized method demonstrated that the proposed approach made it possible to develop a “greener” method than traditional methods.</p></div>","PeriodicalId":561,"journal":{"name":"Food Analytical Methods","volume":"17 9","pages":"1292 - 1301"},"PeriodicalIF":2.6,"publicationDate":"2024-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141932125","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Screening of Bioactive Compounds in Lettuce: Multivariate Optimization of an Ultrasound-Assisted Solid–Liquid Extraction Procedure 生菜中生物活性化合物的筛选：超声辅助固液萃取程序的多元优化

IF 2.6 3区农林科学

Food Analytical Methods Pub Date : 2024-08-10 DOI: 10.1007/s12161-024-02656-z

Aldana Ayelén Lemos, Verónica Carolina Soto Vargas, Rodolfo Germán Wuilloud, Roxana Elizabeth González

{"title":"Screening of Bioactive Compounds in Lettuce: Multivariate Optimization of an Ultrasound-Assisted Solid–Liquid Extraction Procedure","authors":"Aldana Ayelén Lemos, Verónica Carolina Soto Vargas, Rodolfo Germán Wuilloud, Roxana Elizabeth González","doi":"10.1007/s12161-024-02656-z","DOIUrl":"10.1007/s12161-024-02656-z","url":null,"abstract":"<div><p>Lettuce (<i>Lactuca sativa</i> L.) is one of the most consumed vegetables worldwide and is considered a good source of health-promoting compounds. The objective of this work was to apply a multivariate design of experiments through a screening stage followed by optimization of factors that affect the extraction of phytochemicals present in lettuce. A response surface methodology was employed and, specifically, a central composite design model, for the optimization of the methods. The optimal conditions for the extraction of chlorophyll a, b, and total carotenoids were as follows: 4.8 mL of acetone:water (80:20 v/v) and 10 mg of sample with ultrasound-assisted extraction for 5 min. On the other hand, for anthocyanin and phenolic compounds, the optimal conditions were as follows: 5 mL of acetone:acidified water (80:20 v/v) and 20 mg of sample for 5 min with ultrasound-assisted extraction. The experimental model was followed by spectrophotometry methodology for a comprehensive characterization. Optimal conditions were applied for the simultaneous extraction and determination of the above-mentioned compounds in different lettuce cultivars. Both extraction methods successfully extract different phytochemicals by reducing the volume of solvent, sample mass, and extraction time compared to previously reported methods. The results obtained showed a significant variability in the content of phytochemicals; therefore, it could be estimated that the different cultivars of lettuce evaluated will exhibit different beneficial health effects.</p></div>","PeriodicalId":561,"journal":{"name":"Food Analytical Methods","volume":"17 9","pages":"1281 - 1291"},"PeriodicalIF":2.6,"publicationDate":"2024-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141920489","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development and Application of Novel Extraction Method to Analyze Herbal Supplements and Adulterant Determination by GCxGC/Q-TOFMS 利用 GCxGC/Q-TOFMS 开发和应用新型萃取方法分析草药补充剂并测定掺假物质

IF 2.6 3区农林科学

Food Analytical Methods Pub Date : 2024-08-06 DOI: 10.1007/s12161-024-02657-y

Jhonatan Bispo de Oliveira, Maria Fernanda Mendes Carvalho, Patterson Patrício de Souza, Zenilda de Lourdes Cardeal

{"title":"Development and Application of Novel Extraction Method to Analyze Herbal Supplements and Adulterant Determination by GCxGC/Q-TOFMS","authors":"Jhonatan Bispo de Oliveira, Maria Fernanda Mendes Carvalho, Patterson Patrício de Souza, Zenilda de Lourdes Cardeal","doi":"10.1007/s12161-024-02657-y","DOIUrl":"10.1007/s12161-024-02657-y","url":null,"abstract":"<div><p>This manuscript proposes a new extraction method for analyzing natural compounds in herbal supplements for weight loss and determining adulterants by a comprehensive two-dimensional gas chromatography system coupled to a quadrupole time-of-flight mass spectrometer (GCxGC/Q-TOFMS). In this new approach, a hydrophilic microporous cartridge (HMCart) was developed to enclose the samples, protecting the SPME (solid-phase microextraction) fibers. The cartridge is loaded with herbal supplement samples during direct immersion of SPME fiber in the aqueous phase to allow the analytes to be trapped. The new sample preparation method using chromatographic analyses enabled the detection of 650 compounds, including natural compounds, such as terpenes, aldehydes, ketones, and fatty acids. Adulterants found in other studies in the literature, such as sibutramine and ephedrine. The fluoxetine and caffeine were detected and quantified. The new method has achieved the goal of simple, effective, solvent-free, and versatile sample preparation that can be applied in future studies, including determining other compound classes in various matrix samples.</p></div>","PeriodicalId":561,"journal":{"name":"Food Analytical Methods","volume":"17 9","pages":"1267 - 1280"},"PeriodicalIF":2.6,"publicationDate":"2024-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141932024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of Cold Atmospheric Plasma Pretreatment on the Recovery of Phenolic Antioxidants from Spent Coffee Grounds 冷大气等离子体预处理对从废弃咖啡渣中回收酚类抗氧化剂的影响

IF 2.6 3区农林科学

Food Analytical Methods Pub Date : 2024-08-05 DOI: 10.1007/s12161-024-02661-2

Anastasia Kyriakoudi, Anastasia Loukri, Stamatia Christaki, Yelyzaveta Oliinychenko, Alexandros Ch. Stratakos, Ioannis Mourtzinos

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