FOOD CHEMISTRY
·
2026
·
IF 10.4
Fengyang Wang,Panpan Liu,Yin Chen,Mengjuan Li,Yunlong Liu,Yan Qi,Xiaohui Xiong,Yuanjian Liu
Firstly, through various analytical methods, the mechanism by which the electrocatalytic oxygen reduction capacity of E. coli O157:H7 was enhanced under 4% NaCl stress was revealed. The cyclic voltammetry (CV) results indicated that the oxygen reduction ability of E. coli O157: H7 was improved under NaCl stress. Microbiological analysis confirmed the intracellular ROS levels in E. coli O157: H7 under NaCl stress is related to the upregulation of SOD/CAT activity. Metabolomics identified key metabolic adaptations in E. coli O157:H7, including enhanced tricarboxylic acid (TCA) cycles and ubiquinone (Q) biosynthesis, which promoted effective respiratory electron transfer in the bacteria. Secondly, the BPE-ECL (Bipolar Electrochemiluminescence) sensor designed based on 4% NaCl stress showed 9.72 times increase in anode ECL intensity. The detection limit was extremely low at 10 CFU for E. coli O157:H7 in 1 mL sample volume. This research provides a new solution for the sensitive screening of electrochemically active bacteria.
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DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2016
·
IF 3.782
Yujie Qiang,Shengtao Zhang,Shenying Xu,Wenpo Li
Corrosion experiments and theoretical calculations were performed to investigate the inhibition mechanism of indazole (IA) and 5-aminoindazole (AIA) for copper in NaCl solution. The results obtained from weight loss and electrochemical experiments are in good agreement, and reveal that these compounds are high-efficiency inhibitors with inhibition efficiency order: AIA > IA, which was further confirmed by field emission scanning electronic microscope (FESEM) observation. Besides, the quantum chemical calculations and molecular dynamics (MD) simulation showed that both studied inhibitors are adsorbed strongly on the copper surface in parallel mode. The adsorption of these molecules on copper substrate was found to obey Langmuir isotherm .
研究领域:
腐蚀科学
·
材料化学
·
电化学
·
理论化学
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DOI
高影响因子
Metabolites
·
2024
·Vol. 14
·期 3
·142
·
IF 3.4
Yaxin Wang,Chaolu Tan,Yinghao Li,Fengyan Meng,Youwei Du,Shuyu Zhang,Wenxin Jiang,Naijie Feng,Liming Zhao,Dianfeng Zheng
A large number of dead seedlings can occur in saline soils, which seriously affects the large-scale cultivation of rice. This study investigated the effects of plant growth regulators (PGRs) and nitrogen application on seedling growth and salt tolerance (Oryza sativaL.), which is of great significance for agricultural production practices. A conventional rice variety, “Huang Huazhan”, was selected for this study. Non-salt stress treatments included 0% NaCl (CK treatment), CK + 0.05 g N/pot (N treatment), CK + 40 mg·L−15-aminolevulinic acid (5-ALA) (A treatment), and CK + 30 mg·L−1diethylaminoethyl acetate (DTA-6) (D treatment). Salt stress treatments included 0.3% NaCl (S treatment), N + 0.3% NaCl (NS treatment), A + 0.3% NaCl (AS treatment), and D + 0.3% NaCl (DS treatment). When 3 leaves and 1 heart emerged from the soil, plants were sprayed with DTA-6 and 5-ALA, followed by the application of 0.3% NaCl (w/w) to the soil after 24 h. Seedling morphology and photosynthetic indices, as well as carbohydrate metabolism and key enzyme activities, were determined for each treatment. Our results showed that N, A, and D treatments promoted seedling growth, photosynthesis, carbohydrate levels, and the activities of key enzymes involved in carbon metabolism when compared to the CK treatment. The A treatment had the most significant effect, with increases in aboveground dry weight and net photosynthetic rates (Pn) ranging from 17.74% to 41.02% and 3.61% to 32.60%, respectively. Stomatal limiting values (Ls) significantly decreased from 19.17% to 43.02%. Salt stress significantly inhibited seedling growth. NS, AS, and DS treatments alleviated the morphological and physiological damage of salt stress on seedlings when compared to the S treatment. The AS treatment was the most effective in improving seedling morphology, promoting photosynthesis, increasing carbohydrate levels, and key enzyme activities. After AS treatment, increases in aboveground dry weight, net photosynthetic rate, soluble sugar content, total sucrose synthase, and amylase activities were 17.50% to 50.79%, 11.39% to 98.10%, 20.20% to 80.85%, 21.21% to 33.53%, and 22.17% to 34.19%, respectively, when compared to the S treatment. In summary, foliar sprays of 5-ALA, DTA-6, and additional nitrogen fertilizer enhanced rice seedling growth, increased photosynthesis, lowered Ls values, and improved seedling salt tolerance. Spraying two regulators, 5-ALA and DTA-6, quantitatively increased the effect of nitrogen fertilizer, with comparable effects on NaCl stress regulation. This study provides the basis for efficient agricultural production.
研究领域:
植物生理学
·
农业科学
·
胁迫生物学
·
作物科学
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DOI
高影响因子
FOOD RESEARCH INTERNATIONAL
·
2020
·
IF 4.972
Junhua Li,Lilan Xu,Yujie Su,Cuihua Chang,Yanjun Yang,Luping Gu
In this study, the influence of NaCl on the flocculation behavior and gel properties of egg yolk/κ-carrageenan mixed dispersions or emulsions were studied. As a result of NaCl incorporation, there was a decrease in the mean droplet size, zeta potential, degree of flocculation and viscosity of the mixed dispersions/emulsions, and the onset point of gelation was also brought forward. Increasing the concentration of NaCl led to a significant increase in gel strength and decrease in gel cohesiveness. Results from low field nuclear magnetic resonance (LF-NMR) confirmed that the addition of NaCl could significantly reduce the hydration ability of gel molecules and increase the content of immobilized water of hydrogels as the gel strength increased, while the water holding capacity of emulsion gels was depressed with the incorporation of oil. These findings suggested the flocculation state and gel properties of egg yolk/κ-carrageenan mixed dispersions/emulsions can be tailored by adjusting NaCl for food formulations.
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DOI
PubMed
高影响因子
LWT-FOOD SCIENCE AND TECHNOLOGY
·
2023
·
IF 6
Lixin Tan,Mengting Zheng,Shuping Chen,Na Wu,Lilan Xu,Yan Zhao,Yao Yao,Yonggang Tu
In order to clarify the quality formation process of low-NaCl salted eggs (LSEs) under the dual action of vacuum and salt, changes of physicochemical properties, molecular structure, and microstructures of egg white as well as interior and exterior yolks were systematically studied. Results showed that the salt content of egg whites and egg yolks increased to around 5% and 1% respectively, which were only about half of their traditional counterparts. Exterior yolk exudes more oil than the interior yolk, which was consistent with the observation of a more compact microstructure by scanning electron microscopy (SEM). Rheological testing demonstrated a significant increase in the viscosity of yolks but a decrease of egg whites. At the molecular level, proteins of egg white and yolk had gone through the process of denaturation and aggregation, but their change tendencies of free sulfhydryl group, surface hydrophobicity and secondary structure were slightly different. In summary, vacuum assisted two-stage pickling could effectively shorten the ripening time of salted eggs and reduce salt content without compromising their good quality.
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高影响因子
Energy Science & Engineering
·
2017
·Vol. 5
·期 4
·208-216
·
IF 2.172
Yuan Zhao,Haizhou Lin,Shurong Wang
A novel green reaction system of CO 2 –water–isopropanol has been developed for the production of furfural (FF) from xylose. Initially, a simple CO 2 –water system was investigated, and the results showed that the formation of FF from xylose was greatly enhanced. CO 2 at high pressure could increase the acidity of the reaction system, and thus the FF yield was improved. By raising the reaction temperature, the conversion of xylose was remarkably accelerated in the CO 2 –water–isopropanol system, leading to an acceptable conversion rate (94.41%) and FF yield (55.81%). Addition of an appropriate amount of NaCl further increased the yield to 69.20%. Other carbohydrates (arabinose and xylan) were also tested in the same reaction system and modest results were obtained.
研究领域:
生物化学
·
绿色化学
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DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2023
·Vol. 58
·期 30
·12202-12220
·
IF 4.5
Zhang Jie,Zheng Yuying
In this study, physically exfoliated graphene was embedded in zinc-rich epoxy coatings with different zinc contents to study the corrosion protection of graphene-modified zinc-rich epoxy (GZRE) coatings to steel substrates under high-temperature and high-concentration NaCl solution. Electrochemical impedance spectroscopy and open-circuit potential were conducted to investigate the corrosion resistance of GZRE coatings with different zinc contents under intact and damaged conditions. The supporting evidence was also provided by surface morphology, cross-sectional morphology, scratch morphology, and salt spray experiment. The contact mode of zinc particles–graphene–zinc particles can be formed between graphene and zinc particles in GZRE, thus improving the electrical connection between zinc particles. The role of graphene in improving the barrier effect and cathodic protection performance of GZRE depends on the zinc content in the coating. Moreover, it was discovered that highly active zinc particles could effectively attenuate the galvanic corrosion effect between graphene and steel substrate. This research will provide promising enlightenment for the application of graphene-modified zinc-rich epoxy coatings for the corrosion protection of steel substrates under high-temperature and high-concentration NaCl solution.
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高影响因子
JOURNAL OF MOLECULAR LIQUIDS
·
2023
·
IF 6
Hongbo Zhou,Yang Chen,Chao Luo,Honggun Song,Hong Yan,Lishibao Lin,Zhi Hu
The high-efficiency and non-toxic inhibitors for copper and its alloys are of great importance for reducing the corrosion rate of copper in aggressive solutions. In this work, the inhibition effect of 2-mercaptopyridine (2-MP) for copper in NaCl aqueous solution was investigated by experiment and theoretical calculation. The comprehensive experimental results showed that the surface of the copper sample was still smooth after 72 h immersion in NaCl solution containing 0.75 g/L 2-MP inhibitor, and the inhibition efficiency could reach 93.27 %. Meanwhile, the Cu N/S Cu bonds were detected by X-ray photoelectron spectroscopy and Raman spectroscopy, indicating that the 2-MP inhibitor could adsorb on the copper surface directly. The adsorption of copper by 2-MP is compatible with the Langmuir isotherm adsorption. The difference in reactivity between 2-MP and 4-MP was analyzed by quantum chemistry calculation, while molecular dynamics (MD) simulation results showed that 2-MP has better inhibition performance than 4-MP. Furthermore, the compactness and hydrophobicity of the 2-MP molecular layer were increased with a rise in 2-MP concentration, which effectively obstructed the diffusion of the water molecular and prevented the corrosive medium contact with the copper surface.
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高影响因子
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
·
2021
·
IF 3.871
Bin Han,Shigen Zhu,Weiwei Dong,Yunfeng Bai,Hao Ding,Yilan Luo,Ping Di
In this study, 85-xWC-xTiC-15wt%Al 2 O 3 (x = 0, 5, 10 and 20 wt%) composites were fabricated via hot pressing sintering technology. The influences of TiC additives on the mechanical performance and electrochemical behavior of WC-Al 2 O 3 composite in NaCl solution were investigated. The mean size of WC grain showed a downward trend with the increase of TiC content. The relative density, hardness and fracture toughness of WC-based composites were improved by TiC additives. The maximum values of mechanical performance were obtained when TiC content was 10 wt%. Moreover, the research results indicated that TiC additives significantly increase the corrosion potential and decrease the corrosion current density in NaCl solution. When TiC content increased, the charge-change resistance (R ct ) value presented an uptrend, and then decreased obviously when the TiC content reached 20 wt%. The XPS spectrum and SEM images proved that TiO 2 passivation film was formed on the surface of WA15-10TiC composite. Therefore, it could be concluded that TiO 2 passive film could inhibit further corrosion of the composite.
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高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2021
·
IF 4.539
Hongyu Cen,Zhenyu Chen
Functionalized graphene oxide (FGO) were synthesized and investigated as corrosion inhibitors of carbon steel in this research. The inhibition behavior of FGO in CO 2 -saturated NaCl solution was studied via weight loss, surface characterizations, and electrochemical measurements. Results confirm that FGO could protect metal effectively and the inhibition efficiency showed the extreme effect as the increase of FGO concentration, reaching a maximum of 83.4% at 20 mg/L. FGO can adsorb on carbon steel via the functionalized groups and form the hydrophobic cover layer on the metal surface by the lamellar nanoparticles.
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DOI
高影响因子
RSC Advances
·
2018
·Vol. 8
·期 37
·20648-20654
·
IF 2.936
Zhifeng Zhang,Fengjuan Wang,Yao Liu,Shengping Wu,Weihua Li,Wei Sun,Dong Guo,Jinyang Jiang
Herein, the protective performance of a new triazole inhibitor for carbon steel was studied by electrochemical methods. Potentiodynamic polarization curves showed that the anti-corrosion efficiency improved with increasing concentrations of the inhibitor and the results show that it is 22 times corrosion resistance efficiency for inhibitor compared to bare aggressive solution. X-ray photoelectron spectroscopy showed that the film adsorbed well on the carbon steel surface. The scanning vibrating electrode technique demonstrated the corrosion process of carbon steel with and without the protection of inhibitor. Thus, a mechanism for the corrosion process was proposed and the behavior of carbon steel under the protection of the inhibitor was discussed.
研究领域:
材料科学
·
电化学
·
表面科学
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DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2026
·
IF 6.6
Hang Li,Muhammad Mubeen,Jingbao Wang,Salman Khalid,Jingmao Zhao,Baomin Fan,Yiqian Lv,Mohammad Tabish,Haiqing Liu
Zn-Al-Mg coated steel (ZM-steel) has emerged as a preferred material in automotive and infrastructure applications, yet its long-term durability remains challenged by localized corrosion in chloride-rich environments. Herein, a sustainable and scalable corrosion protection strategy based on the in-situ formation of layered double hydroxide (LDH) films intercalated with benzothiazole (BTZ) was reported. By exploiting the controlled corrosion of ZM-steel surface in BTZ-containing NaCl solution, compact LDH architectures spontaneously formed, incorporating BTZ molecules within their interlayers. The resulting hybrid coating integrated the physical barrier effect of LDH with the release of BTZ anions, enabling interfacial passivation and sustained corrosion inhibition. Comparative electrochemical tests revealed that BTZ-containing NaCl solution yielded markedly enhanced corrosion-resistance as compared to NaCl solution or bare BTZ solution, with charge transfer resistance increasing from 9.44 × 10 2 to 9.13 × 10 4 Ω·cm 2 . Moreover, epoxy-overcoating effectively suppressed filiform corrosion (FFC) of ZM-steel substrate for over 35 days. Unlike conventional hydrothermal or carbonate-assisted routes for LDH fabrication, this precursor-free strategy proceeds under ambient conditions without additional reagents, underscoring its simplicity, efficiency, and scalability. These findings demonstrate that the moderate corrosion is beneficial to the formation of LDH on ZM-steel surface.
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高影响因子
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