Food Chemistry-X
·
2025
·
IF 8.2
Xiaoying Li,Gang Li,Haijing Wang,Chunsheng Liu,Chunrui Rong,Fuhang Song,Caixia Chen,Junkai Wu
The changes in volatiles during postharvest storage of three peach cultivars (JC, ZYP9 and ZY8) were tracked under two temperature conditions (25 °C and 4 °C). Overall volatile content significantly decreased during storage over time, specifically with a marked decrease in ester levels, while the relative proportions of alcohols, aldehydes, and ketones increased during cold storage. These changes in volatile composition revealed three distinct storage stages across the cultivars, with the middle stage marking a critical turning point in volatile flavor quality. Among the cultivars, ZYP9 and ZY8 exhibited better adaptability to cold storage than JC. The reduction in key esters, coupled with the increase in alcohols and aldehydes, led to altered aroma profiles and the development of off-flavors in cold-stored peaches. Overall, this study provides valuable insights into the dynamic changes in flavor volatiles during postharvest storage and contribute to a deeper understanding of aroma quality in stored peaches.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Sustainable Chemistry & Engineering
·
2025
·
IF 7.3
Hao Qin,Mintao Pang,Fanjing Wei,Zhiguo Yuan,Weizhou Jiao,Guisheng Qi,Youzhi Liu
Gas absorption plays a vital role in environmental protection and resource recovery but remains hindered by low mass transfer efficiency, large equipment size, and environmental concerns of conventional solvents. To address these challenges, this work establishes a generalizable framework that couples solvent innovation with equipment enhancement to advance sustainable process intensification. Specifically, room-temperature nonionic deep eutectic solvents (DESs) are rationally designed through precursor collection, fusion property and EHS evaluation, and solid–liquid equilibrium calculations, yielding 313 feasible DES combinations. Considering five composition ratios, 1565 DES candidates are generated, from which COSMO-RS screening identifies three promising diglyme-based systems for CO2 absorption. Their absorption behavior is experimentally validated in a rotating packed bed (RPB), confirming both the reliability of the computational screening and the significant intensification effect of high-gravity field. Mechanistic insights are further obtained from σ-profiles, interaction energy calculations, and quantum chemical analyses, revealing that van der Waals interactions dominate CO2-DES binding, while hydrogen bonding drives DES formation. These results not only validate the consistency of solvent design and experimental outcomes but also highlight the synergistic effect of integrating solvent design with high-gravity technology. Overall, the study demonstrates a versatile methodology for intensifying gas absorption, with CO2 capture as a representative application.
✓ 已验证
产品关联
DOI
高影响因子
LANGMUIR
·
2025
·
IF 3.9
Weiqiao Zhong,Zhichao Xia,Tingxi Zhang,Yuhuan Nie,Rong Lei,Lu Li,Qibin Chen
Switchable surfactants are an emerging class of environmentally friendly compounds that can be reversibly triggered between active and inactive states in response to external stimuli, enabling on-demand or on-command control over the interfacial properties. In this work, a type of imidazoline-based CO2-switchable surfactants was synthesized and systematically investigated. Structural characterization was performed by using Fourier transform infrared and 1H NMR spectroscopy, confirming the successful formation of long-chain alkyl imidazolines. Their surface activity and critical micelle concentration (CMC) were evaluated by measuring surface tension and interfacial tension, revealing strong adsorption behavior and efficient micellization. Conductivity and NMR analyses demonstrated the reversible transition between neutral and ionic forms under alternating CO2/N2 bubbling, confirming the robustness and repeatability of the switching process. The emulsification/demulsification cycles were repeated over multiple switching operations, where oil/water emulsions were stabilized by their bicarbonate salt forms with long-term stability, whereas the neutral forms induced rapid demulsification. These findings not only establish the fundamental interfacial behavior of imidazoline-based surfactants but also highlight their potential applications in enhanced oil recovery, chemical separation, drug delivery, and sustainable process design.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ANALYTICAL LETTERS
·
2024
·
IF 1.6
Jingjing Gu,Chunyang Chen,Tingting Liu,Yanyan Li,Xuedong Wang
Here is reported effervescent reaction-enhanced switchable hydrophilic-hydrophobic solvent-based salting-out microextraction (ERSSM) with high-performance liquid chromatography with photodiode array detection (HPLC-PDA) for the preconcentration, extraction, and trace-level determination of polybrominated diphenyl ethers (PBDEs) in milk and water. The important variables were rigorously optimized to be 150 µL of hexanoic acid as the extraction solvent, 400 µL of Na2CO3 as the alkaline source, 350 µL of H2SO4 solution as the acid source, and NaCl as the salting-out agent. The optimized conditions provided a linear range from 0.2 to 50 µg L−1 with limits of detection and quantitation from 0.026 to 0.085 µg L−1 and 0.087 to 0.28 µg L−1 for six PBDEs. The intra-day and inter-day precision values were from 2.48% to 6.75%, and the fortified recoveries for PBDEs were between 78.06% and 103.07% in water and milk samples. The developed procedure avoids the use of a traditional organic disperser and mechanical mixing allowing the determination of PBDEs outdoors by synchronous extraction method and high efficiency for the analytes. These advantages suggest a high potential for the routine monitoring of PBDEs in liquid food and environmental samples.
✓ 已验证
产品关联
DOI
高影响因子
TALANTA
·
2025
·
IF 6.1
Yuxin Wang,Yulin Wang,Jizhen Fu,Suzhen Li,Yawen Zhang,Xiaojiao Zheng,Jin Liu,Li Li,Xu Jing
In this study, a rapid and simple semi-automatic emulsification liquid-liquid microextraction technique based on deep eutectic solvents was developed for determining strobilurin fungicides in food samples using high-performance liquid chromatography. Novel deep eutectic solvents formed as extractants by combining quaternary phosphates and fatty acids, eliminating the need for toxic solvents in liquid-phase microextraction. The extraction process was facilitated by an electric micropipette, which emulsified and injected the deep eutectic solvent-water mixture directly into the sample. The semi-automated approach enhanced extraction speed and efficiency while minimizing manual error. The sample and deep eutectic solvent mixture were emulsified immediately and separated within 15 min of standing. Only an electronic micropipette was used to achieve extraction and separation. The method demonstrated a linear range of 2–200 μg L −1 with R 2 > 0.996 and a limit of detection of 0.6 μg L −1 . Recovery ranged from 73.0 % to 100.1 %, with relative standard deviations from 0.4 % to 6.1 %. The greenness of the method was validated through multiple assessment tools, including the Green Analytical Procedure Index, Analytical GREEnness metric for sample preparation, and Sample Preparation Metric of Sustainability. The emulsification liquid-liquid microextraction procedure, based on innovative solvents and electric micropipette technology, proved successful for application in water, juice, and vinegar samples and showed potential for broader use in pesticide residue analysis in food.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
FOOD CHEMISTRY
·
2025
·
IF 9.8
Ruili Ma,Weiguo Wu,Yikang Shu,Ran Gao,Ziyu Wang,Daoquan Tang,Yan Du,Shuai Ji
This paper reports a novel method for simultaneous extraction and in situ separation of flavonoids and alkaloids from mulberry leaves using a pH-responsive deep eutectic solvent (DES)/water system. Five novel DESs were synthesized, and isoquercitrin and deoxynojirimycin were respectively selected as the representative compounds of flavonoids and alkaloids to evaluate the extraction and separation efficiency. The optimal DES, namely [HexA (hexanoic acid)][MPD (2-methyl-2,4-pentanediol)], was identified, and the extraction and in situ separation conditions were optimized. After extraction and pH-induced phase separation, flavonoids were mainly enriched in the DES phase with alkaloids in the H 2 O phase, and the distribution ratios were 6.69:1 and 1:9 ([HexA][MPD]:H 2 O), respectively. Compared to traditional solvents, the [HexA][MPD]/H 2 O system showed higher extraction efficiency of flavonoids and alkaloids with higher purity. Moreover, [HexA][MPD] possessed excellent reusability. This study demonstrates the application of pH-responsive DES/H 2 O systems for simultaneous extraction and separation of natural products for the first time.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）