Microchemical Journal最新文献_第10页

Quasi-ZIF-67 for high sensitivity electrochemical nitrite detection 准zif -67高灵敏度电化学亚硝酸盐检测

IF 4.9 2区化学

Microchemical Journal Pub Date : 2025-06-09 DOI: 10.1016/j.microc.2025.114233

Bing Li , Chunyan Liu , Xiaomei Xie , Mingyu Qi , Runting Liu , Xiaotian Guo , Peng Wu , Xiangren Meng , Huan Pang

引用次数: 0

Innovative biomass-derived P, N-CQDs for the sensitive determination of the novel antiviral baloxavir marboxil in human plasma and dosage forms 创新的生物质衍生P， N-CQDs用于人血浆和剂型中新型抗病毒药物巴洛韦马博西的灵敏测定

IF 4.9 2区化学

Microchemical Journal Pub Date : 2025-06-09 DOI: 10.1016/j.microc.2025.114236

Galal Magdy , Rehab H. Elattar , Hany A. Batakoushy , Randa A. Abdel Salam , Ghada M. Hadad , Asmaa Kamal El-Deen

{"title":"Innovative biomass-derived P, N-CQDs for the sensitive determination of the novel antiviral baloxavir marboxil in human plasma and dosage forms","authors":"Galal Magdy , Rehab H. Elattar , Hany A. Batakoushy , Randa A. Abdel Salam , Ghada M. Hadad , Asmaa Kamal El-Deen","doi":"10.1016/j.microc.2025.114236","DOIUrl":"10.1016/j.microc.2025.114236","url":null,"abstract":"<div><div>This work presents a novel, quick, and economical one-pot synthesis of plant-based phosphorus and nitrogen-doped carbon quantum dots (P, N-CQDs). Microwave treatment of <em>Tricolor Crassula</em> (<em>Crassula ovata</em>) leaves as carbon sources with urea and monobasic ammonium phosphate (NH<sub>4</sub>H<sub>2</sub>PO<sub>4</sub>) as nitrogen and phosphorus sources for 80 s resulted in the formation of blue emissive P, N-CQDs (λ<sub>ex</sub>/λ<sub>em</sub> of 320/405 nm). The synthesized CQDs were fully characterized, revealing a great quantum yield (35.23 %) and high phosphorus and nitrogen content. Furthermore, they exhibited remarkable efficiency as a fluorescent nanoprobe for the sensitive determination of a new anti-influenza drug, baloxavir marboxil (BXM), which was recently reported to have wide utility as a medication for COVID-19. BXM quantitatively quenched the native fluorescence of P, N-CQDs through a synergistic combination of inner filter effect and static quenching over the concentration range of 0.2–18.0 μg/mL with a LOD of 0.04 μg/mL. The selectivity of the probe was verified in the presence of different metal ions, co-administered drugs, and potential co-existing excipients. The proposed method was further applied for BXM determination in pharmaceutical tablets and spiked human plasma with good percentage recoveries (100.44 ± 1.02 % and 100.23 ± 1.06 %). Finally, the suggested probe’s greenness was assessed using different metrics, confirming its excellent greenness. The rapid synthesis of P, N-CQDs utilizing inexpensive, low-energy microwave radiation and the lack of organic solvents make the produced probe environmentally friendly. This study expands the applications of P, N-CQDs in biomedical and pharmaceutical analysis.</div></div>","PeriodicalId":391,"journal":{"name":"Microchemical Journal","volume":"215 ","pages":"Article 114236"},"PeriodicalIF":4.9,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144263409","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A novel dual-color glucose detection method based on G-quadruplex DNAzyme catalytic properties: Utilizing ABTS2− and acid violet 7 for high sensitivity and visual semi-quantitative analysis 一种基于g -四联DNAzyme催化性质的双色葡萄糖检测新方法：利用ABTS2 -和酸性紫7进行高灵敏度和视觉半定量分析

IF 4.9 2区化学

Microchemical Journal Pub Date : 2025-06-09 DOI: 10.1016/j.microc.2025.114232

Ruimin Li , Yilin Gong , Shuibin Cen , Xueguo Song , Hua Xiang , Runkun Zhang

{"title":"A novel dual-color glucose detection method based on G-quadruplex DNAzyme catalytic properties: Utilizing ABTS2− and acid violet 7 for high sensitivity and visual semi-quantitative analysis","authors":"Ruimin Li , Yilin Gong , Shuibin Cen , Xueguo Song , Hua Xiang , Runkun Zhang","doi":"10.1016/j.microc.2025.114232","DOIUrl":"10.1016/j.microc.2025.114232","url":null,"abstract":"<div><div>A novel dual-color method for glucose detection has been devised, leveraging the combination of 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) diammonium (ABTS<sup>2−</sup>) and acid violet 7, based on the catalytic properties of G-quadruplex DNAzymes. In the presence of K<sup>+</sup>, the oligonucleotide 5′-GTGGGTAGGGCGGGTTGG-3′ (PS2.M) forms a G-quadruplex structure. When bound to hemin, this structure mimics horseradish peroxidase (HRP) and catalyzes the oxidation of colorless ABTS<sup>2−</sup> to green ABTS<sup>•−</sup> by H<sub>2</sub>O<sub>2</sub>. The H<sub>2</sub>O<sub>2</sub> is produced through the reaction between glucose and oxygen, catalyzed by glucose oxidase. By linking these two reactions, the oxidation of glucose can be translated into a color change in ABTS<sup>2−</sup>. Under optimal conditions, the absorbance at 420 nm (A<sub>420 nm</sub>) is directly proportional to the glucose concentration within a range of 1.0 μM to 40.0 μM. The linear regression equation is A = 0.175 + 0.0334C (C: μM, R = 0.998), with a detection limit of 0.1 μM (3σ/slope). Furthermore, the introduction of acid violet 7 as a reference molecule enables the green color intensity change to be transduced into a color transition from red to gray and then to green, facilitating high-resolution semi-quantitative analysis of glucose by visual inspection. Importantly, our proposed method has been validated through its application to the detection of glucose concentrations in human serum, yielding promising results that underscore its potential for clinical diagnostics and research applications. Our findings represent a substantial advancement in the field of glucose detection and offer a promising alternative to existing methods.</div></div>","PeriodicalId":391,"journal":{"name":"Microchemical Journal","volume":"215 ","pages":"Article 114232"},"PeriodicalIF":4.9,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144263373","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Simultaneous determination of favipiravir and molnupiravir using TLC with smartphone image processing: applications in pharmaceuticals and environmental matrices 智能手机图像处理薄层色谱法同时测定法匹拉韦和莫诺匹拉韦：在药物和环境基质中的应用

IF 4.9 2区化学

Microchemical Journal Pub Date : 2025-06-08 DOI: 10.1016/j.microc.2025.114225

Menna S. Elsherbiny , Khadiga M. Kelani , Sherif M. Eid , Mahmoud M. Abbas , Maha F. Abdel Ghany

{"title":"Simultaneous determination of favipiravir and molnupiravir using TLC with smartphone image processing: applications in pharmaceuticals and environmental matrices","authors":"Menna S. Elsherbiny , Khadiga M. Kelani , Sherif M. Eid , Mahmoud M. Abbas , Maha F. Abdel Ghany","doi":"10.1016/j.microc.2025.114225","DOIUrl":"10.1016/j.microc.2025.114225","url":null,"abstract":"<div><div>A simple, sensitive, cost-effective thin-layer chromatography (TLC) method was developed for simultaneous determination of favipiravir (FVP) and molnupiravir (MPV) using a smartphone-based imaging technique. Separation was achieved on silica gel 60 F254 TLC plates using methylenechloride:ethyl acetate:methanol:ammonia (6:3:4:1, v/v), with Rf values of 0.56 (FVP) and 0.80 (MPV). Visualization involved complex formation between the drug and cobalt thiocyanate. Image analysis was performed using a Samsung A23 smartphone and Color Picker software (v7.8.3) to measure luminescence intensity. The method demonstrated linearity in the range of 0.5–25 μg/mL for FVP, with a detection limit (LOD) of 0.23 μg/mL, and 1–25 μg/mL for MPV, with an LOD of 0.16 μg/mL. It was successfully applied for determination of FVP and MPV in pharmaceutical formulations and environmental water samples. Results were statistically equivalent to HPLC-UV (FVP) and UV-spectrophotometric methods (MPV) (p > 0.05). Greenness assessment using Eco Scale and AGREE tools confirmed the method as eco-friendly, economical, and sustainable.</div></div>","PeriodicalId":391,"journal":{"name":"Microchemical Journal","volume":"215 ","pages":"Article 114225"},"PeriodicalIF":4.9,"publicationDate":"2025-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144242914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of optimisations on CNN performance in identifying adulteration of red chilli powder 优化对CNN识别红辣椒粉掺假性能的影响

IF 4.9 2区化学

Microchemical Journal Pub Date : 2025-06-08 DOI: 10.1016/j.microc.2025.114231

Dilpreet Singh Brar , Birmohan Singh , Vikas Nanda

{"title":"Effect of optimisations on CNN performance in identifying adulteration of red chilli powder","authors":"Dilpreet Singh Brar , Birmohan Singh , Vikas Nanda","doi":"10.1016/j.microc.2025.114231","DOIUrl":"10.1016/j.microc.2025.114231","url":null,"abstract":"<div><div>This study presents a deep learning framework for the detection and classification of adulteration in Red Chilli Powder using image-based analysis. Besides the aim is to analyse the effect of various optimisation techniques to balance the classification performance of the DenseNet models. Hence, two architectures, DenseNet-121 and DenseNet-169, were optimised using three optimisers (namely AdamClr, RMSprop, and AdamW) across three batch sizes (i.e., 16, 32, 64) over 150 epochs. Further, the performance of the models was analysed on two custom datasets: one for binary classification (pure vs. adulterated RcP) and the second for multiclass classification, identifying six natural adulterants at concentration levels 5%, 10% and 15%. The performance was evaluated using standard metrics derived from confusion matrices, while Gradient-weighted Class Activation Mapping visualisations enhanced model interpretability. The DenseNet-169 combined with AdamClr optimizer at batch size 32 achieved the highest binary classification accuracy (98.92 %) and robust convergence. In multiclass classification, the same configuration demonstrated superior generalisation (accuracy: 96.73%). AdamClr consistently outperformed RMSprop and AdamW, offering stability, rapid convergence, and resilience across datasets. RMSprop exhibited batch size sensitivity and instability, while AdamW, delivered occasional competitive results but lacked robustness without meticulous hyperparameter tuning. Overall, the results highlight the critical role of dynamic learning rate strategies and model depth in optimising convolution neural networks performance for food adulteration detection. This framework demonstrates strong potential for real-world applications in spice authentication and food quality assurance.</div></div>","PeriodicalId":391,"journal":{"name":"Microchemical Journal","volume":"215 ","pages":"Article 114231"},"PeriodicalIF":4.9,"publicationDate":"2025-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144263372","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of in-situ leaching process on spatial distribution of soil properties in ion-type rare earth mines 原位浸出过程对离子型稀土矿土壤性质空间分布的影响

IF 4.9 2区化学

Microchemical Journal Pub Date : 2025-06-08 DOI: 10.1016/j.microc.2025.114228

Jie Luo , Xiulong Chen , Chenming Bi , Kai Zhou , Jianping Lin , Qin Zhang

{"title":"Effects of in-situ leaching process on spatial distribution of soil properties in ion-type rare earth mines","authors":"Jie Luo , Xiulong Chen , Chenming Bi , Kai Zhou , Jianping Lin , Qin Zhang","doi":"10.1016/j.microc.2025.114228","DOIUrl":"10.1016/j.microc.2025.114228","url":null,"abstract":"<div><div>In this study, an abandoned ionic rare-earth mine (MZ) was conducted in southern Ganzhou, China, to investigate the impacts of in-situ leaching mining techniques on the surface soil, with spatial characteristics analyzed from the mine’s bottom (MB), middle (MM), and top (MT) sections. The results revealed that, compared to the control area (CK), the soil in MZ exhibited significant reductions in pH, organic matter, and available potassium levels. Conversely, the concentrations of NH<sub>4</sub><sup>+</sup>-N and SO<sub>4</sub><sup>2</sup>- in MZ soil were significantly higher than those in CK, being 55.58 and 1.36 times higher, respectively. The distribution pattern of rare-earth elements in MZ soil was consistent with that in CK, but at levels exceeding the background total rare-earth content of Jiangxi Province soils. Significantly lower concentrations of Zn, Pb, Cr, and Cd were observed in MZ soil compared to CK. Spatially, the organic matter content in MM and MT soils was significantly lower than in MB, while the NH<sub>4</sub><sup>+</sup>-N content was significantly higher, being 10.55 and 7.86 times higher than that in MB, respectively. The pH of MT soil was significantly lower than that of MB, indicating the most severe acidification. MT soil also exhibited the lowest comprehensive fertility and the highest Nemerow comprehensive pollution index for non-rare-earth heavy metals. Consequently, the top region of MZ, three years post in-situ leaching mine closure, was identified as the most severely affected area by mining activities, with low soil fertility, residual leaching agents, and soil acidification posing the primary challenges in the abandoned mining area.</div></div>","PeriodicalId":391,"journal":{"name":"Microchemical Journal","volume":"215 ","pages":"Article 114228"},"PeriodicalIF":4.9,"publicationDate":"2025-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144263348","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Capillary blood-based testing in decentralized healthcare: Innovations, applications, and future perspectives 分散医疗保健中的毛细管血液检测：创新、应用和未来展望

IF 4.9 2区化学

Microchemical Journal Pub Date : 2025-06-07 DOI: 10.1016/j.microc.2025.114219

Yun Zheng , Xinlei Liu , Rui Liu , Ying Wan , Jinhong Guo

{"title":"Capillary blood-based testing in decentralized healthcare: Innovations, applications, and future perspectives","authors":"Yun Zheng , Xinlei Liu , Rui Liu , Ying Wan , Jinhong Guo","doi":"10.1016/j.microc.2025.114219","DOIUrl":"10.1016/j.microc.2025.114219","url":null,"abstract":"<div><div>The COVID-19 pandemic has highlighted the limitations of centralized diagnostic systems and expedited the global shift toward decentralized healthcare models. This review explores capillary blood testing as a promising solution for more accessible, rapid, and user-friendly diagnostics. It focuses on two primary modalities employed in clinical settings: Point-of-Care Testing (POCT), which provides immediate on-site results, and Point-of-Care (POC) sampling with shipment to centralized laboratories for analysis, which expands diagnostic capabilities. Recent advances in capillary blood collection techniques and POCT devices are discussed, along with their expanding clinical applications. Despite their potential, these approaches face notable challenges, such as issues with sample matrix specificity, result standardization, and lack of robust quality control systems—factors that can undermine reliability and limit broader applicability. Overcoming these barriers through technological innovation and coordinated standardization efforts is essential. The review concludes that while capillary blood-based testing offers significant potential to expand healthcare accessibility, sustained multidisciplinary progress is required to fully realize its potential.</div></div>","PeriodicalId":391,"journal":{"name":"Microchemical Journal","volume":"215 ","pages":"Article 114219"},"PeriodicalIF":4.9,"publicationDate":"2025-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144263410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Aggregation-induced emission based aptasensor for fluorescence sensing of E. coli O157:H7 in milk 基于聚集诱导发射的牛奶中大肠杆菌O157:H7荧光传感的适体传感器

IF 4.9 2区化学

Microchemical Journal Pub Date : 2025-06-07 DOI: 10.1016/j.microc.2025.114221

Qi Cheng , Baihetinuer Aimaitijiang , Yuanyuan Zhang , Zuyao Fu , Jing Xie , Zhaoyang Ding

{"title":"Aggregation-induced emission based aptasensor for fluorescence sensing of E. coli O157:H7 in milk","authors":"Qi Cheng , Baihetinuer Aimaitijiang , Yuanyuan Zhang , Zuyao Fu , Jing Xie , Zhaoyang Ding","doi":"10.1016/j.microc.2025.114221","DOIUrl":"10.1016/j.microc.2025.114221","url":null,"abstract":"<div><div><em>E. coli</em> O157:H7 is a representative foodborne pathogen, and diseases caused by it pose significant threats to human health. Rapid and accurate identification and detection of foodborne pathogens are effective strategies for preventing and controlling foodborne diseases. This study presented an aggregation-induced emission based aptasensor for rapid and highly sensitive detection of <em>E. coli</em> O157:H7 in milk. The fluorescent aptasensor was constructed by conjugating aptamer with sodium tetrakis(phenylethynyl)benzenesulfonate (TPE-(COOH)<sub>4</sub>Na) via π-π stacking interactions. In order to study the conformational changes of the aptamer, techniques such as circular dichroic spectroscopy, isothermal titration calorimetry and electrophoresis were used to characterize the aptamer. Under optimized conditions, the fluorescent aptasensor exhibited a linear detection range from 6.5 to 6.5 × 10<sup>7</sup> CFU/mL and achieved a low limit of detection (LOD) of 2.8 CFU/mL. The aptasensor demonstrated excellent selectivity toward <em>E. coli</em> O157:H7 and was successfully applied to detect <em>E. coli</em> O157:H7 in milk. This research provided valuable insights into bacterial contamination detection in dairy products and held promise for broad applications in food safety monitoring.</div></div>","PeriodicalId":391,"journal":{"name":"Microchemical Journal","volume":"215 ","pages":"Article 114221"},"PeriodicalIF":4.9,"publicationDate":"2025-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144242916","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Real-time biosensing of pathogenic bacteria with SERS-functionalized nucleic acid sensors: Promising new tools for ultrasensitive and multiplexed analysis 利用sers功能化的核酸传感器对致病菌进行实时生物传感：超灵敏和多路分析的新工具

IF 4.9 2区化学

Microchemical Journal Pub Date : 2025-06-07 DOI: 10.1016/j.microc.2025.114213

Salah Tofik Jalal Balaky , Samira Fattah Hamid , Radhwan Shukur Uso , Amer Khaleel , Armin Gharibi

{"title":"Real-time biosensing of pathogenic bacteria with SERS-functionalized nucleic acid sensors: Promising new tools for ultrasensitive and multiplexed analysis","authors":"Salah Tofik Jalal Balaky , Samira Fattah Hamid , Radhwan Shukur Uso , Amer Khaleel , Armin Gharibi","doi":"10.1016/j.microc.2025.114213","DOIUrl":"10.1016/j.microc.2025.114213","url":null,"abstract":"<div><div>Rapid prevention and control of diseases caused by pathogenic bacteria is one of the current food safety regulatory concerns encountered via different countries and has garnered considerable attention from all sectors of society. The progress of reliable and rapid sensing techniques for pathogenic bacteria remains a hot research area for public health due to the limitations of time-consuming, complex steps, poor selectivity, or low sensitivity of normally used approaches. Owing to its high selectivity, sensitivity, rapid response, and nondestructive capabilities, functional RNA/DNA-based SERS has emerged as a powerful substrate for the detection and differentiation of various pathogenic bacteria. This review aims to explain the operational principles of numerous functional nucleic acids in SERS detection, comprising CRISPR, G-quadruplexes, DNAzymes, aptamers, origami, together with the construction procedures and practical applications of functional RNA/DNA-based SERS sensing. Primarily, a summary is provided that outlines the structural features and SERS detecting mechanisms characteristic to various functional DNA and RNA. Following this, several innovative approaches for fabricating functional nucleic acid-derived SERS sensors are detailed for bacterial detection, with the aim of enhancing current detection capabilities. Ultimately, conclusive remarks are presented, together with a survey of the current challenges and potential avenues for future research in this established field.</div></div>","PeriodicalId":391,"journal":{"name":"Microchemical Journal","volume":"215 ","pages":"Article 114213"},"PeriodicalIF":4.9,"publicationDate":"2025-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144242798","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Implementation of a carbon electrode-based sensor for monitoring the physicochemical quality in the production of Tequila Rosado 用于监测龙舌兰酒生产过程中理化质量的碳电极传感器的实现

IF 4.9 2区化学

Microchemical Journal Pub Date : 2025-06-07 DOI: 10.1016/j.microc.2025.114229

Camila S. Gómez-Navarro , Walter M. Warren-Vega , Rocío Fonseca-Aguiñaga , Ana I. Zárate-Guzmán , Luis A. Romero-Cano

{"title":"Implementation of a carbon electrode-based sensor for monitoring the physicochemical quality in the production of Tequila Rosado","authors":"Camila S. Gómez-Navarro , Walter M. Warren-Vega , Rocío Fonseca-Aguiñaga , Ana I. Zárate-Guzmán , Luis A. Romero-Cano","doi":"10.1016/j.microc.2025.114229","DOIUrl":"10.1016/j.microc.2025.114229","url":null,"abstract":"<div><div><em>Tequila Rosado</em>, an innovative beverage whose main appeal is its pink hue, in some cases it can be prepared by infusing Tequila 100 % Agave Silver Class (T100%-SC) with Hibiscus Flowers (T100%-SC-HF) or aging in Wine Barrels (T100%-SC-WB). Given the impact of these processes on its physicochemical properties, it is essential to analyze its characteristics to ensure optimal quality. This study focuses on the electrochemical characterization of color in <em>Tequila Rosado</em>, using emerging analytical techniques to assess color variations based on production methods. While no statistically significant differences were found in the levels of methanol, higher alcohols, esters, aldehydes, furfural, δ<sup>13</sup>C<sub>VPDB</sub>, and δ<sup>18</sup>O<sub>VSMOW</sub> compared to Tequila 100 % Agave Silver Class, production processes significantly alter the color profile. Image analysis with RGB and HSV models showed an increase in red tones, generating shades of pink and beige. UV–Vis spectroscopy supports these findings, showing a band at 530 nm in T100%-SC-HF, associated with natural hibiscus pigments, and a band at 365 nm in T100%-SC-WB, typical of aged Tequilas. However, the most notable aspect is the use of electrochemical techniques, such as Differential Pulse Voltammetry (DPV), which allows precise evaluation of the color index. Electrochemical results show that color differences correlate with manufacturing processes, reflecting the oxidation signals of phenolic compounds, flavonoids, anthocyanins, and tannins present in hibiscus flowers and wine barrels. These electrochemical measurements provide a robust and emerging tool for characterizing the coloration in beverages like <em>Tequila Rosado</em>.</div></div>","PeriodicalId":391,"journal":{"name":"Microchemical Journal","volume":"215 ","pages":"Article 114229"},"PeriodicalIF":4.9,"publicationDate":"2025-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144242908","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0