Fermentation-Basel
·
2023
·Vol. 9
·期 6
·519
·
IF 3.7
Shuyue Fan,Yu Zhang,Yunkui Li
The classification of color is important in the management and evaluation of red wine color. Nevertheless, current reports have not given a sound solution. A novel scheme for the quantitative classification of red wine color from the perspective of micro and macro levels was proposed in this work. The overall color performance of 119 representative red wine samples was visualized and classified into 125 micro-classifications according to the partition of the chromaticity and lightness of the wine color. Considering the evolution of red wine color, quantitative macro-classification of the color of the wine samples was explored, and six macro-classifications were obtained. These few classifications determine the extent of aging and aging potential of colors between different red wines well. The performance of this approach was further verified by another set of 56 red wine samples. This efficient and easy-to-implement approach is expected to be helpful in the digital and visual color management, control, evaluation, comparison, and prediction of red wines.Keywords:wine color classification;wine color evolution;CIELAB;visual representation
研究领域:
食品科学
·
化学计量学
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DOI
高影响因子
FOOD CHEMISTRY
·
2025
·
IF 9.8
Caiyun Liu,Xibu Wei,Zengshuai Zhang,Qianqian Miao,Mario Prejanò,Tiziana Marino,Yongsheng Tao,Yunkui Li
The effect of pre-fermentation single additions of four cyclodextrins (CDs) as stabilizing factors on the color, aroma, and sensory characteristics of red wines was systematically investigated for the first time and compared with control and single polysaccharide treatments. The results showed that α-cyclodextrin (α-CD) and hydroxypropyl-β-cyclodextrin (HP-β-CD) increased red-green color channel ( a ⁎ ) by 41.85 % and 28.84 %, respectively, compared to the control group, exhibiting a stronger copigmentation effect than the three polysaccharides. Mantel test and heatmap analyses revealed that α-CD enhanced color stability by promoting copigmentation between phenolics and monomeric anthocyanins, whereas HP-β-CD enhanced color through direct copigmentation with anthocyanins. Furthermore, volatile compound content and principal component analysis demonstrated that α-CD and HP-β-CD effectively protected esters and selectively protected alcohols, compared to the control and polysaccharide treatments. Sensory evaluation confirmed that HP-β-CD and α-CD improved the sensory profile by enhancing color appeal, rich floral and fruity aromas, and harmonious taste.
研究领域:
食品科学
·
化学
·
酿酒学
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产品关联
DOI
PubMed
高影响因子
Foods
·
2025
·Vol. 14
·期 1
·133
·
IF 5.1
Chao Wang,Xiangchuan Wu,Xinhe Lin,Xueting Zhu,Wei Ma,Jian Chen
The use of nanozymes for electrochemical detection in the food industry is an intriguing area of research. In this study, we synthesized a laccase mimicking the MnO2@CeO2nanozyme using a simple hydrothermal method, which was characterized by modern analytical methods, such as transmission electron microscope (TEM), X-ray diffraction (XRD), and energy dispersive X-ray spectroscopy (EDX), etc. We found that the addition of MnO2significantly increased the laccase-like activity by 300% compared to CeO2nanorods. Due to the excellent laccase-like activity of the MnO2@CeO2nanozyme, we developed an electrochemical sensor for the detection of hazardous phenolic compounds such as bisphenol A and catechol in red wines by cyclic voltammetry (CV) and differential pulse voltammetry (DPV). We used the MnO2@CeO2nanozyme to develop an electrochemical sensor for detecting harmful phenolic compounds like bisphenol A and catechol in red wine due to its excellent laccase-like activity. The MnO2@CeO2nanorods could be dispersion-modified glassy carbon electrodes (GCEs) by polyethyleneimine (PEI) to achieve a rapid detection of bisphenol A and catechol, with limits of detection as low as 1.2 × 10−8M and 7.3 × 10−8M, respectively. This approach provides a new way to accurately determine phenolic compounds with high sensitivity, low cost, and stability.
研究领域:
食品科学
·
生物化学
·
分析化学
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产品关联
DOI
PubMed
高影响因子
Analytical Methods
·
2017
·Vol. 9
·期 22
·3361-3374
·
IF 1.9
Zhi Liu,Hai-Long Wu,Li-Xia Xie,Yong Hu,Huan Fang,Xiao-Dong Sun,Tong Wang,Rong Xiao,Ru-Qin Yu
In the present work, a novel chemometrics-assisted analytical strategy that combines three-way high performance liquid chromatography-diode array detection (HPLC-DAD) data with a second-order calibration method based on the alternating trilinear decomposition (ATLD) algorithm was developed for direct, accurate and simultaneous determination of thirteen phenolic compounds in complex red wine samples without an intricate clean-up step. All analytes were rapidly eluted out (7.5 min) under a simple gradient LC-separation and then detected in a multi-channel UV window. With the aid of the prominent “second-order advantage” of the ATLD algorithm, four common HPLC problems, i.e. solvent peaks, peak overlaps, unknown interferents and baseline drifts, could be mathematically calibrated, enabling “pure signals” of analytes to be extracted out from interference-heavy but information-rich HPLC-DAD profiles. The new strategy could avoid the loss of analytes of interest to significantly improve the analytical accuracy. Validation parameters, i.e. recovery (97.7–104%), precision (RSD < 7.1%), matrix effect, limits of detection (LODs, 0.02–0.27 μg mL−1) and limits of quantitation (LOQs, 0.06–0.82 μg mL−1) of thirteen analytes, were surveyed and further confirmed by the LC-MS/MS method. Based on the indexes of phenolic compositions in wines, pattern recognition methods, i.e. principal component analysis and linear discriminant analysis (PCA-LDA), were applied for distinguishing wines of different storage years, and the discriminant accuracies were higher than 90%, which proved that this chemometrics-assisted HPLC-DAD strategy was an excellent method for direct and accurate determination of phenolic compositions in complex wine samples as well as the authentication of vintage year.
研究领域:
分析化学
·
食品科学
✓ 已验证
DOI
高影响因子
ANALYTICA CHIMICA ACTA
·
2023
·
IF 6.2
Chenchen Xu,Qingqing Liu,Su Chu,Pan Li,Fengxiang Wang,Yanmei Si,Guojiang Mao,Choufei Wu,Hua Wang
A microdots array-based fluoremetric method with superwettability profile has been developed for the simultaneous and separate detection of Fe 3+ and Cu 2+ ions in red wine samples. A wettable micropores array was initially designed with high density by using polyacrylic acid (PAA) and hexadecyltrimethoxysilane (HDS), followed by the NaOH etching route. Zinc metal organic frameworks (Zn-MOFs) were fabricated as the fluorescent probes to be immobilized into the micropores array to obtain the fluoremetric microdots array platform. It was found that the fluorescence of Zn-MOFs probes could decrease significantly in the presence of Fe 3+ and/or Cu 2+ ions towards their simultaneous analysis. Yet, the specific responses to Fe 3+ ions could be expected if using histidine to chelate Cu 2+ ions. Moreover, the developed Zn-MOFs-based microdots array with superwettability profile can enable the accumulation of targeting ions from the complicated samples without any tedious pre-processing. Also, the cross-contamination of different samples droplets can be largely avoided so as to facilitate the analysis of multiple samples. Subsequently, the feasibility of simultaneous and separate detection of Fe 3+ and Cu 2+ ions in red wine samples was demonstrated. Such a design of microdots array-based detection platform may promise the wide applications in analyzing Fe 3+ and/or Cu 2+ ions in the fields of food safety, environmental monitoring, and medical diseases diagnostics.
研究领域:
分析化学
·
食品安全
·
环境监测
·
医学诊断
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产品关联
DOI
PubMed
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2025
·
IF 2.5
Yang Cheng,Hongdi Liu,Yang Wang,Lixue Kuang,Guofeng Xu
A highly efficient and practical molecularly imprinted fluorescence sensor (MIP-QDs) was successfully synthesized through the simple reverse micro-emulsion method employing quercetin as the template molecule, quantum dots (QDs) as the fluorescent carrier and APTES as the functional monomer. The surface morphologies and structures of MIP-QDs were well characterized and examined in detail using several techniques. The fluorescence measurements were performed to investigate the fluorescence quenching capability of MIP-QDs for quercetin. Benefitting from the thin surface-imprinting layer and predefined binding sites on the surface of MIP-QDs, the prepared MIP-QDs sensor not only exhibited remarkable fluorescence quenching properties, outstanding optical stability and favorable reusability, but also had excellent sensitivity and selectivity towards quercetin. Under the optimized conditions, the fluorescence intensity of the designed MIP-QDs showed a linear decrease with the increasing quercetin concentration in the range of 0.1–150 μg mL−1. Moreover, the proposed fluorescence sensor was effectively applied to determine quercetin in real samples. Satisfactory recoveries ranging from 94.8% to 102.8% with the relative standard deviations (RSDs) below 5.0% in red wine samples were achieved using the fabricated MIP-QDs sensor. Therefore, it can be used as an efficient and cost-effective approach with excellent application potential for selective recognition and quantitative detection of quercetin in actual samples.
研究领域:
分析化学
·
食品科学
·
材料科学
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产品关联
DOI
高影响因子
FOOD CHEMISTRY
·
2020
·
IF 6.306
Yuning Yang,Wei Liu,Jie Cao,Yiwei Wu
A ratiometric sensor of MOF/ CdTe QDs was constructed by physically mixing CdTe QDs ( λ em = 605 nm) with MOF (Fe-MIL-88NH 2, λ em = 425 nm). Under an UV lamp ( λ ex = 365 nm), orange-red CdTe QDs is gradually quenched with increasing levels of Hg 2+ or Cu 2+ , while blue MOF is unchanged, accompanying with a visual change from bright pink to blue fluorescence. Hence, a new method for determining Hg 2+ and Cu 2+ by MOF/CdTe QDs sensor is established, whose detection limits are 0.22 ng mL −1 for Hg 2+ (2.1% RSD) and 0.26 ng mL −1 for Cu 2+ (1.1% RSD), respectively. In addition, on-site, rapid and visual determination of Hg 2+ /Cu 2+ in red wine without any pretreatment is realized by using a MOF/CdTe QDs paper-based sensor. For Hg 2+ and Cu 2+ , the semi-quantitative detection ranges of the paper-based sensor are both 10 ~ 5000 ng mL −1 , implying that it has great application value in analyzing Hg 2+ and Cu 2+ in liquid samples.
研究领域:
分析化学
·
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF ANALYTICAL CHEMISTRY
·
2020
·Vol. 75
·期 1
·111-118
·
IF 0.84
Congming Li,Zhou Yanli,Ye Baoxian,Xu Maotian
Abstract A novel, economic, and highly sensitive electrochemical sensor for the determination of trans -resveratrol ( RES ) was fabricated by electropolymerization of poly(L-lysine) films onto glassy carbon electrode ( GCE ) surface. The electrochemical behavior of RES in Britton–Robinson buffer solution (pH 2.0) on the poly(L-lysine)/GCE was investigated by cyclic voltammetry and linear sweep voltammetry for the first time. Results showed that the detection range of the proposed sensor to RES was from 0.20 to 12.0 μM with the minimum detectable concentration of 0.06 μM. The reported electrochemical sensor also exhibited high selectivity, good reproducibility, and long-term stability for RES detection. In addition, the proposed method can be employed for the determination of RES in red wines with satisfactory results. The proposed electrochemical strategy presents valuable information related to evaluation of RES levels in real samples.
研究领域:
分析化学
·
食品科学
✓ 已验证
产品关联
DOI
高影响因子
Foods
·
2022
·Vol. 11
·期 11
·1598
·
IF 5.561
Yinyin Liu,Dan Liu,Shuangshuang Cui,Can Li,Ziguang Yun,Jian Zhang,Fengxia Sun
In order to improve the weak optical performance of gold nanoparticles and realize the signal amplification of lateral flow chromatography test strips, individual gold nanoparticles (AuNPs) were aggregated into gold nanoparticle aggregates through functional groups around polyamidoamine (PAMAM) dendrimers. A signal-amplified aptamer-based lateral flow chromatography test strip was constructed for the rapid determination of ochratoxin A (OTA). Under optimal conditions, the visual detection limit of this test strip was 0.4 ng mL−1and the semi-quantitative limit of detection (LOD) was 0.04 ng mL−1. Compared with other traditional aptamer lateral flow chromatography test strips, its sensitivity was improved about five times. The whole test could be completed within 15 min. The aptamer-based strip was applied to the detection of OTA in red wine; the average recoveries ranged from 93% to 105.8% with the relative standard deviation (RSD) varying from 3% to 8%, indicating that the test strip may be a potentially effective tool for the on-site detection of OTA.Keywords:ochratoxin A;signal amplification;lateral flow test strip;aptamer;red wine
研究领域:
食品科学
·
分析化学
·
毒理学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Food Measurement and Characterization
·
2023
·Vol. 17
·期 5
·5344-5351
·
IF 3.4
Wu Hui
The antioxidative capacity of food is a crucial functional indicator. Conventional methods for measuring antioxidative capacity involve complicated reagents and tedious procedures. In this study, an electrochemical gas-generating technique was proposed for the rapid evaluation of antioxidative activity in liquid food. Dopamine-modified graphene was utilized for surface modification of the battery. DNA damage was employed to evaluate the differences in antioxidative capacity among various samples. Three different varieties of wine were compared for their antioxidative activity. The proposed electrochemical sensing strategy was highly effective in testing the antioxidative activity of the three types of wine. The results demonstrated that the antioxidative activity of the three types of wine was ranked as follows: Cabernet Gernischt > Cabernet Sauvignon > Syrah. Additionally, the proposed electrochemical sensor exhibited excellent stability and reproducibility.
研究领域:
食品科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
EUROPEAN FOOD RESEARCH AND TECHNOLOGY
·
2018
·Vol. 244
·期 11
·2007-2017
·
IF 1.919
Bai Shuang,Cui Can,Liu Jing,Li Pei,Li Qing,Bi Kaishun
The objective of the research was to evaluate potential biological activities of Portuguese red wines with different grape types on the level of composition characterization. An ultrafast liquid chromatography coupled with triple quadrupole mass spectrometry method was validated and used for qualitative analysis of commercial red wine samples through simultaneously determining 31 major active components. Meanwhile, the antioxidant activities of red wines were measured by DPPH (1,1-diphenyl-2-picrylhydrazyl), ABTS [2,2′-azino-bis-(3-ethylbenzothiazoline-6-sulphonic acid)] and CUPRAC (cupric ion reducing antioxidant capacity) assay. The relations between polyphenols and antioxidant values were further considered by multivariate statistical analysis. Results of correlation analysis and stepwise multiple regression analysis showed that antioxidant activities were highly correlated to polyphenolic profiles, with significant contributions of procyanidins and phenolic acids. Consequently, the assessment method we established appeared to be an effective tool for appraising the nutritional value of polyphenols in wines, and the research strategy could be applied to the evaluation of other beverages.
研究领域:
食品科学
·
营养学
·
分析化学
✓ 已验证
产品关联
DOI
高影响因子
FOOD CHEMISTRY
·
2019
·
IF 5.399
Can-Peng Li,Shuang Tan,Hanzhang Ye,Jun Cao,Hui Zhao
A label-free fluorescence assay for resveratrol determination is presented for the first time. The approach was based on fluorescence resonance energy transfer (FRET), via competitive supramolecular recognition, between p-sulfonated calix[6]arene (CX6)-modified reduced graphene oxide (CX6@RGO) and a probe-resveratrol complex. The probe molecule (Rhodamine B or rhodamine 123) had a strong fluorescence signal, and its fluorescence was quenched by CX6@RGO, based on FRET. When the target molecule was added to CX6@RGO, the probe molecule was displaced by resveratrol, and a host-guest complex, CX6@RGO-resveratrol formed, turning-on the fluorescence signal. Fluorescence intensity of the CX6@RGO-probe complex increased linearly with increased resveratrol concentrations (2.0–40.0 μM). The proposed approach was used to determine resveratrol in red wine with satisfactory detection limits and recoveries. Compared with traditional determination methods, our procedure is advantageous because it saves time, is easy to operate, and does not require sample pretreatment.
研究领域:
分析化学
·
食品科学
·
生物化学
✓ 已验证
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）