Journal of Future Foods
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2026
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IF 7.2
Yixiu Tian,Yaru Duan,Tianhua Bai,Rongyan An,Zhaozhaoyang Yang,Bo Zhang,Di Zhang,Yunwei Zhang,Wen Ma
Sulfur dioxide (SO 2 ) has long been an effective additive in winemaking, yet its use raises health concerns for sensitive individuals. While oenological tannins are increasingly recognized for their color-stabilizing and antioxidant effects, their potential to replace SO₂ throughout the winemaking process and their broader impacts on wine quality and safety have not been systematically studied. In this work, we present the first comprehensive evaluation of grape and oak tannins as SO₂ alternatives at multiple stages of both white and red wine production. By adding specific doses of tannins before alcoholic fermentation (0.3 g/L), after alcoholic fermentation(0.4 g/L), and after malolactic fermentation (0.4 g/L), we assessed their effects on wine chemistry, sensory attributes, and health-related parameters. Our findings demonstrated that tannin addition effectively reduced the need for SO 2 , supported a smooth fermentation process, and significantly decreased the production of volatile acidity ( p < 0.05). Wines treated with tannins showed no significant differences in redox potential compared to those treated with SO 2 ( p > 0.05). Notably, the addition of grape tannins to pre-alcoholic fermentation in red wines significantly enhanced the aroma profile (ethyl esters and higher alcohols) and reduced the formation of methionol. Sensory analysis revealed no significant differences in palate attributes between the tannin and SO 2 -treated wines ( p > 0.05). Importantly, the concentration of methanol, a health-related byproduct, was not significantly affected by tannin treatment ( p > 0.05). Overall, these results highlighted the potential of oenological tannins as a viable alternative to SO 2 in winemaking. And it was the first time to establish the feasibility and benefits of using 0.3 g/L grape tannins as practical SO₂ substitutes, with pre-fermentation grape tannin addition emerging as the most promising strategy for further development.
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高影响因子
Journal of Environmental Chemical Engineering
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2026
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IF 7.2
Ning Wang,Penggang Pei,Ge Gao,Yundi Kan,Linna Zhou,Bozhen Yu,Yuebing Sun
Thiol–functionalized montmorillonite, characterized by its high–density adsorption sites, has demonstrated excellent application performance in Hg pollution control. However, the influence of aging on its structure and adsorption properties remains unclear. To comprehensively explore the structural characteristics and Hg adsorption capacity of thiol–functionalized montmorillonite after aging conditions, this study employed 1%–5% H₂O₂ chemical oxidation to simulate natural aging processes. Characterization results indicated that H₂O₂ treatment led to reductions in both the specific surface area and the interlayer spacing. Moreover, partial oxidation of –SH groups to –SO₃H was observed, along with an increase in acidic functional groups such as –COOH. Two–dimensional correlation spectroscopy (2D–COS) identified the functional groups aging sequence as follows: –OH (H₂O) > Si/Al–OH > Si–O–Si > –SH > –CH₂ – > –SO₃H. Adsorption capacities for Hg(II) and MeHg decreased from 103.03 to 44.87 mg/g, and from 39.50 to 16.87 mg/g, respectively. In parallel, the desorption rate increased from 11.25% to 39.12%. Density functional theory (DFT) calculations further confirmed an increase in the adsorption energy of the aging materials and verified that –SH groups possess the strongest binding ability toward Hg species.
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Phytochemistry Letters
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2026
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IF 1.4
Zhixia (Grace) Chen,Michael Chamberlain,Xujiang Yuan
Introduction: Alkylamides are recognized as the main active constituents of Echinacea purpurea . Owing to their lipophilic nature, they are conventionally extracted using ethanol-based solvents. Ethanol-free preparations, including Echinacea glycerites and glycetracts, have emerged as alternatives; however, their alkylamides content has not been rigorously verified and is assumed to be low. The lack of ethanol-free extracts capable of preserving alkylamides potency presents a major challenge for product development. Method: E. purpurea were subjected to ultrasonic-assisted extraction using propylene glycol (PG) as the extraction solvent. Comparative analyses were conducted with E. purpurea glycerite, glycetract and hydroethanolic extracts. Results: Organoleptic evaluation indicated that PG-based extracts retained the characteristic tingling properties observed in hydroethanolic extracts. Quantitative HPLC analysis demonstrated that glycerite and glycetract preparations contained approximately 44 % of the alkylamides concentration measured in hydroethanolic extracts. In contrast, PG-based ultrasonic extracts achieved 83 % of the alkylamides yield of the hydroethanolic extract. Furthermore, alkylamides were not detected in the aerial parts extract. Conclusion: PG extract offers a viable ethanol-free E. purpurea alternative, while maintaining a high alkylamides content.
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APPLIED CATALYSIS B-ENVIRONMENTAL
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2026
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IF 21.1
Qi Zhou,Jiale Wang,Jiaojiao Song,Hao Yan,Ruiyan Wang,Tiantian Luo
A mesoporous N-doped carbon bearing atomically dispersed Fe (Fe 1 -N-Cv) was created that uniquely couples carbon-vacancy and pore engineering to switch the electron spin state of highly accessible Fe sites from low-spin (t 2 g 5 e g 0 ) to high-spin (t 2g 3 e g 2 ), thereby unlocking superior Fenton-like activity. The material was synthesized by pyrolyzing Fe-encapsulated ZIFs under negative pressure, whereby the built-in pressure gradient simultaneously enlarged pores and generated carbon vacancies. Fe 1 -N-Cv degrades pollutants 3.89-fold faster than conventional Fe 1 -N-C, maintains > 99 % tetracycline removal and > 95 % mineralization during 240 min of continuous flow operation, operates over a pH range of 3.0–9.0, and shows stable recyclability and strong resistance to coexisting matrix constituents. Mechanistic analysis identifies a non-radical regime dominated by singlet oxygen, assisted by high-valent Fe-oxo and electron-transfer pathways, while DFT calculations show that carbon defects accelerate interfacial charge transfer and lower the free-energy barrier for PMS activation. Synergistic engineering of carbon vacancies and pores thus emerges as a powerful lever to modulate both the geometric accessibility and electronic spin state of single-atom Fe centers, directly translating into markedly enhanced Fenton-like performance. This strategy offers a promising approach for boosting single-atom-catalyst activity and robustness, advancing their practical deployment in continuous environmental remediation technologies.
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GREEN CHEMISTRY
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2026
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IF 9.2
Zhuxin Li,Junfei Zhang,Chong Li,Jinzhe Cao,Shengyang Tao
Photochemical organic synthesis has emerged as a prominent and important synthetic methodology in recent years. However, conventional photosensitizers are often expensive and require multi-step synthesis for their preparation. This study utilizes natural flavonoids extracted from citrus peel (Tangeretin, Nobiletin, and Sinensetin) as photocatalysts to achieve the photooxidation of alkenes. Conversion rates of 53.7% for styrene and 66.1% for cyclohexene were attained. Reaction Mechanism Generator (RMG) simulations revealed that alkenes undergo reaction pathways mediated by singlet oxygen or oxygen-free radicals to form the corresponding products, a finding corroborated by a series of control experiments and EPR. These flavonoid compounds exhibit Aggregation-Induced Emission (AIE) characteristics. Upon encapsulation with saponins to form nanoparticles, the conversion rate for cyclohexene was further enhanced to 86.0%. Furthermore, this system successfully achieved the efficient oxidation of benzyl alcohol in an aqueous solvent (52.4% conversion, >99% selectivity). This work establishes a comprehensive green chemistry system encompassing the light source, catalyst, and solvent. The proposed strategy offers a novel approach to the development of natural photocatalysts and sustainable organic synthesis.
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Journal of Environmental Sciences
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2026
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IF 6.3
Lihui Zhao,Can Jin,He Liu,Zhaozhe Yang,Yupeng Liu
Bisphenol A (BPA), a widespread endocrine-disrupting compound, necessitates efficient activation of peroxymonosulfate (PMS) for its degradation. Conventional carbon-based catalysts frequently exhibit limited efficiency, poor stability, and potential environmental risks. Bamboo-derived porous carbon material (BCM) and bamboo-derived porous carbon material loaded with Fe (BCM-Fe) serve as effective catalysts for activating PMS to degrade BPA. The BCM/PMS system achieved a BPA removal efficiency of 94.44 % within 150 minutes, while the BCM-Fe/PMS system attained 97.8 %. Quenching experiments and electron paramagnetic resonance (EPR) analysis identified non-radical singlet oxygen (¹O₂) as the dominant reactive species. Density functional theory (DFT) calculations demonstrated that atomically dispersed Fe species on BCM-Fe significantly enhanced PMS adsorption energy and activation kinetics compared to BCM. Both catalysts exhibited excellent reusability, confirming their potential as practical and sustainable catalysts. This study provides fundamental insights for designing efficient, environmentally benign carbon-based catalysts for advanced oxidation processes.
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MICROCHEMICAL JOURNAL
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2026
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IF 5.1
Juntao Wang,Shengfeng Wang,Liying Sun,Gan Chen,Xuhui Ye,Gongmin Zhang,Qiuye Li,Changwu Zheng,Yiming Zhu,Hongxi Xu,Yan Peng
Mountain-cultivated ginseng (MCG) accumulates age-dependent ginsenosides through ecological habitat simulation, while the age determination method is lacking and requires urgent resolution. This research pioneers a new non-destructive and precise age identification method for MCG by integrating terahertz (THz) spectroscopy technology with convolutional neural networks (CNN). Through comparative analysis of 54 MCG samples (5–20 years), the THz-CNN method demonstrated superior age classification accuracy (92.59%) versus the HPLC-CNN method (77.78%). The underlying mechanism lies in the non-linear relationship between the accumulation pattern of ginsenosides and the plant age. The terahertz spectrum includes comprehensive ginsenoside characteristics, including fingerprint spectral features, multiannual evolution patterns, and their relative correlations, which can be used for multi-dimensional network analysis. In HPLC analyses, inter-batch variability in the silanization degree of the chromatographic column induces deviations in ginsenoside peak areas and retention times, thereby amplifying errors in CNN-based algorithms for chronological identification. Furthermore, by implementing a feature-augmented input framework that combines enhanced spectral features with raw data, the model's classification accuracy was further elevated to 96.30% by intensifying feature learning capacity. The THz-CNN synergy establishes a novel paradigm for phytochemical maturation analysis, simultaneously advancing non-destructive detection technology and intelligent processing of spectral big data in herbal medicine research..
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PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
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2026
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IF 7.8
Qihong Cai,Xiaodan Zheng,Sujun Fang,Qifeng Zou,Hang Zhu,Zhima Yangcuo,Yajuan Zhang,Yong Lin,Chunyan Lian,Shiqi Zhang
The weakly fluorescent of chlortetracycline hydrochloride (CTC) and tetracycline hydrochloride (TC) were alkalized under sodium hydroxide (NaOH) to produce products with strong fluorescence. When the two products were coated with cetyltrimethyl ammonium bromide (CTAB) micelles, the fluorescence intensity was further enhanced, which greatly improved the detection sensitivity. Since the conventional fluorescence spectra of CTC and TC alkaline hydrolysis products-CTAB overlapped seriously, synchronous fluorescence spectra scanning were performed at the wavelength difference (Δλ) was 43 nm to simplify the spectra. Then the two synchronous fluorescence spectra were treated with the first derivative. When λ= 350.6 nm, CTC was measured, here the relative fluorescence intensity of TC was 0. Similarly, so did TC at 360.4 nm. The zero-crossing determination was skillfully utilized to eliminate the mutual interference between the two drugs. Moreover, the fluorescence intensity of water sample background was suppressed to nearly 0 at the zero-crossing. The result showed that detection limit of CTC and TC were 0.2593 ng·mL −1 and 0.2199 ng·mL −1 . Recoveries of CTC and TC in water were 86.42 %-99.17 % and 90.56 %-97.79 %, respectively. The new first derivative synchronous fluorescence spectrometry had the merits of speed, simplicity, sensitive, good selectivity and high accuracy, and it was also environmentally friendly.
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Materials Today Chemistry
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2026
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IF 6.7
Yang Yu,Ying Jin,Jiatong Wang,Jilong Yao,Haiming Cheng,Zixu Zhang,Longyi Jin
Metal halide perovskites demonstrate excellent photoluminescence and have shown great potential in developing eco-friendly and reversible anti-counterfeiting materials based on polar solvent-induced photoluminescent color changes. However, it remains challenging to simultaneously achieve high quantum yield, excellent stability, and highly sensitive detection of trace polar solvents such as methanol. In this study, a novel terbium-based metal halide 20 % Sb 3+ : Cs 5 TbCl 8 ·6H 2 O was synthesized via solid-phase milling. Sb 3+ doping significantly enhanced its PL performance and stability. The 20 % Sb 3+ : Cs 5 TbCl 8 ·6H 2 O sample showed bright yellow emission with a PLQY of 68.3 % under UV irradiation and reversible water-induced yellow-to-green transition. This enabled the achievement of dual-patterned information encryption and anti-counterfeiting applications by using water-induced 20 % Sb 3+ : Cs 5 TbCl 8 ·6H 2 O and 20 % Sb 3+ : Cs 3 TbCl 6 @PMMA. Furthermore, due to the high charge density of the rare earth ion Tb 3+ and its strong affinity for polar solvents, an ultra-sensitive PL response was achieved for 20 % Sb 3+ : Cs 5 TbCl 8 ·6H 2 O in organic solvents of different polarities. Liquid-phase methanol induced the most pronounced ΔEA value (0.083) among 17 solvents, enabling highly sensitive detection with a limit of 0.01 % after 30 s ultrasonication. Complementary to its solution performance, the material also demonstrated exceptional responsiveness to methanol vapor, where a rapid and reversible PL transition occurred within 7.2 s at 60 °C. This work offers a feasible strategy for designing stimuli-responsive luminescent materials.
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Energetic Materials Frontiers
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2026
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IF 3.9
Hui-jie Zhang,Jian-bin Li,Xin Yu,Su-hang Chen,Yu-qi Zhu,Shi-zhou Ma,Kai-chuang Zhang,Qi-hang Chen,Feng-qi Zhao,Kang-zhen Xu
The applications of boron-based (B) fuels in propulsion and weapon systems are hindered by inefficient combustion and harsh ignition conditions of B particles. Dual-functional energetic metal-organic frameworks (EMOFs) were synthesized on B surface by incorporating azide ligands as secondary ligands to improve the thermal and combustion properties of B particles. Polydopamine (PDA) interfacial layer was constructed between B and EMOFs to strengthen the interface interaction and facilitate the processes of mass and heat transfer. The mechanisms of EMOFs in eliminating the negative effects of oxide film and enhancing B combustion were analyzed. The results illustrate that the expansion of flame front is driven by the micro-explosion effect of azide ligands, and the flame height increases from 0.46 to 67.9 mm. Concurrently, the generated metal oxides alter the oxygen diffusion pathway by adhering to B surface, thereby significantly enhancing the oxidation process of B. The combustion efficiency of B increases from 60.7 % to 80.4 %, the oxidation temperature lowers by 77 °C, and the flame radiation intensity enhances by approximately 29 %. Crucially, the azide ligands and residual metal oxides exhibit different functions. The azide ligands exhibit the functions of ignition sensitization and micro-explosion at the combustion interface, while the adherent metal oxides promote the efficient oxidation of B particles along two distinct pathways. This innovative strategy of integrating azide ligands and metal oxides offers a novel direction for enhancing the energy release performance of B-based fuels.
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SENSORS AND ACTUATORS B-CHEMICAL
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2026
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IF 7.7
Zhongyu Xiao,Xin Liu,Wenjing Zhao,Yang Liu,Quanhua Xie,Zhengkun Wang,Hassan Karimi-Maleh,Qiongyao He,Jianxin He,Nianbing Zhong
A reflective optical fiber gas sensor was developed for the accurate detection of acetic acid gas concentrations in real time. This sensor comprises a multimode quartz optical fiber and a sensing unit coated with a material that selectively responds to acetic acid. The sensing unit consists of a light channel coated with a Ag film, on which a composite film of TiO 2 /functionalized zirconium metal-organic framework (UiO-66–2CF 3 ) is deposited. Upon absorbing acetic acid, the refractive index of the TiO 2 /UiO-66–2CF 3 film increases, enhancing the light absorption at 326 nm while reducing the reflectance. This decrease in the transmitted light intensity enables the accurate measurement of the environmental acetic acid concentration by detecting the difference between the output and input optical intensities. Experiments were performed to investigate the dependence of the sensor performance on the TiO 2 content in TiO 2 /UiO-66–2CF 3 , coating thickness, light incidence angle in the optical channel, and ambient temperature and humidity. In the range of 10–40 °C and 40–80 % RH, the sensor with 45 wt% TiO 2 in the composite, a coating thickness of 55 μm, and an incident angle of 45° yielded an acetic acid gas response sensitivity of 0.0007 absorbance unit/ppm, a response time of 315 s, detection limit of 4.29 ppm, and maximum relative error below 5.0 %. The incorporation of the –CF 3 group into UiO-66 endowed the sensor with excellent humidity immunity, a high selectivity for acetic acid, and long-term stability.
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Analytical Methods
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2026
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IF 2.6
Jun-Xia Li,Min Gong,Chao Ma,Yao-Yao Li,Ling-Xiao Liu,Bin Wang,Jin-Jing Ren,Sheng-Ming Lei,Yun-Guo Liu
Rosa rugosa Thunb. can be skillfully blended with high-quality, mellow Baijiu to produce Rose Lujiu (RL), which emits a delightful aroma. In this study, e-nose, e-tongue, GC-MS, and GC-IMS were employed to analyze the aromatic compounds. Relative odor activity value (ROAV) analysis and orthogonal partial least squares discriminant analysis (OPLS-DA) were employed to comprehensively assess volatile compounds and predict key aroma compounds. A total of 111 volatile compounds were identified using GC-MS analysis. Additionally, GC-IMS analysis identified a total of 70 aroma compounds, among which 13 key contributors to the aroma were determined based on odor activity thresholds. These results indicate that ethyl acetate, ethyl butanoate, propyl hexanoate, and 3-methyl-1-butanol emerged as pivotal odorants enabling discrimination among different RL samples. These findings would provide valuable data for the application of commercial samples in the flavor modulation of RL.
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PubMed
高影响因子
危险品化学品经营许可证（带存储）