CARBOHYDRATE POLYMERS
·
2025
·
IF 12.5
Qing Gao,Zerui Ou,Xiangze Jia,Shahid Ahmed Junejo,Bin Zhang,Qiang Huang
Despite the good biological and antibacterial activities, the p-anisaldehyde is easy to evaporate or degrade during processing and storage. Herein, a new V -type starch-cyclodextrin composite carrier was constructed to efficiently encapsulate p-anisaldehyde in addressing the inherent disadvantages. The introduction of β-cyclodextrin (β-CD) enhanced the short- and long-range ordered structures of the composite carrier. The V -type starch-cyclodextrin composite ( V C30) exhibited the highest loading capacity of 142.01 mg/g for p-anisaldehyde, which was significantly higher than that of V -type starch (VS, 97.83 mg/g) and commercial β-CD (128.48 mg/g). The loading capacity of the V-type starch-cyclodextrin composite was positively correlated with its crystallinity and short-range order. The release rate of p-anisaldehyde was in the order of VC30 < β-CD < VS. Under non-cold chain daily storage (25 °C and 57 % relative humidity) for 2 weeks, the p-anisaldehyde of thymol released from complexes was 36 % (VC30), 49 % (β-CD), and 65 % (VS), respectively. Due to the high loading capacity and good sustained release properties, the noncontact preservation of high-value fruit by V C30 controlling p-anisaldehyde release successfully extended the shelf life of cherries from six to twelve days.
研究领域:
食品科学
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材料科学
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植物保护
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PubMed
高影响因子
PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY
·
2025
·
IF 4
Xianfeng Hu,Yi Ding,Yuanyuan Deng,Xinyue Li,Wenjing He,Yubo Zhang,Ming Li,Xiangsheng Chen,Rongyu Li
Rice false smut, caused by the fungal pathogen Ustilaginoidea virens , poses a significant threat to rice production worldwide. This study aimed to identify the specific target proteins and binding sites of anisaldehyde in U. virens and to elucidate the molecular mechanisms underlying its antifungal activity. In this study, a combination of electron microscopy techniques, integrated transcriptomic and metabolomic analyses, and molecular docking simulations was employed to investigate the effects of anisaldehyde on U. virens . Anisaldehyde significantly inhibited the mycelial growth of U. virens , with a median effective inhibitory concentration (EC₅₀) of 11.18 μg/mL. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) observations revealed that anisaldehyde treatment led to morphological abnormalities in the mycelia of U. virens , including wrinkles, twisting, and a rough surface, along with an increased number of lipid droplets and enhanced cell membrane permeability. Integrated transcriptomic and metabolomic analyses demonstrated that anisaldehyde significantly affected the glycerophospholipid metabolism pathway. Molecular docking results indicated that anisaldehyde could stably bind to the UV8b_03588 protein. Molecular dynamics simulations further confirmed that anisaldehyde bound to the UV8b_03588 protein with high affinity, and the protein conformation remained stable after binding without any significant conformational changes. The UV8b_03588 protein of U. virens , as a potential target, and the inhibition of its function may be key mechanism underlying the antifungal activity of anisaldehyde. This study provides a theoretical basis for the development of novel plant-derived antifungal agents and offers new insights into the control of rice false smut.
研究领域:
植物病理学
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真菌学
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植物化学
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分子生物学
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生物信息学
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DOI
PubMed
高影响因子
FOOD CHEMISTRY
·
2023
·
IF 8.8
Ying Xu,Jun Qi,Manman Yu,Ruishu Zhang,Hengxun Lin,Huimin Yan,Chao Li,Jingmin Jia,Yong Hu
This study aimed to determine the efficacy of star anise dietary fiber (SADF) in alleviating the oxidative damage of myofibrillar protein (MP) from the perspective of volatile components. SADF and SADF without essential oils (EOs) (NSADF) were added to oxidized MP. The addition of NSADF and SADF improved the water-holding capacity (WHC) and gel strength, with the 0.4% addition showing the highest values. Moreover, the WHC of MP from the SADF-treated group was significantly higher than that from the NSADF-treated group at the same dosage, suggesting that EOs in SADF improved the WHC through antioxidation. EOs in SADF prevented the attack of hydroxyl radicals on MP, increasing the β-sheet level and decreasing the random coil level, which was supported by the results of FT-IR, carbonyl content, and sulfhydryl content. Limonene and anisaldehyde present in EOs played an antioxidant role, and anisaldehyde could scavenge free radicals through demethoxylation.
研究领域:
食品科学
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营养学
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蛋白质化学
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抗氧化研究
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PubMed
高影响因子
EUROPEAN JOURNAL OF LIPID SCIENCE AND TECHNOLOGY
·
2019
·Vol. 121
·期 6
·1800521
·
IF 1.852
Honglei Mu,Haiyan Gao,Hangjun Chen,Xiangjun Fang,Yongjun Zhou,Weijie Wu,Qiang Han
Walnut ( Carya cathayensis Sarg.) oil contains over 85% unsaturated fatty acids, which are easily oxidized during storage. As a result, a large number of volatile oxidation compounds (VOCs) are formed during oxidation. The qualitative composition of VOCs in walnut oil and quantitative prediction of the oxidation parameters (peroxide value [POV], acid value [AV], and p -anisidine value [ p -AnV]) by VOCs are investigated through SPME/GC-MS combined with partial least-squares (PLS) regression analysis. Eighteen VOCs including aldehydes, alcohols, and acids are detected by SPME/GC-MS. According to the comprehensive scores of principal component analysis (PCA), 2-octenal, hexanal, 2-heptenal, 1-octen-3-ol, hexanoic acid, and nonanal are the main products formed during oxidation. Then PLS regression is applied to developing quantitative prediction models of oxidation parameters (POV, AV, and p -AnV) by VOCs. The PLS prediction models have a good performance, with determination coefficients (R 2 p ) of 0.993–0.997 for the prediction sets of the three oxidation parameters. Practical Applications : The quantitative relationship between VOCs and oxidation parameters is developed in this study, which provided a new method for monitoring the quality of walnut oil. The SPME/GC-MS combined with PLSR is a feasible and potential method for simultaneous qualitative and quantitative analysis of oxidation process. This method is proven to have a precise predictive ability and provided a potential application in the quality assessment of other nut products. Volatile oxidation compounds (VOCs) are detected by SPME/GC-MS in oxidized walnut ( Carya cathayensis Sarg.) oil. Following this determination, partial least-squares regression (PLSR) is applied to developing quantitative prediction models of oxidation parameters by VOCs.
研究领域:
食品科学
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分析化学
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植物学
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DOI
高影响因子
LWT-FOOD SCIENCE AND TECHNOLOGY
·
2024
·
IF 6
Yanli Xin,Wei Zhang,Yang Lei,Shan Wei,Shuaibing Zhang,Na Li,Yuansen Hu,Yangyong Lv
The inhibition of fungal contamination of food by natural plant essential oils is receiving widespread attention. In this study, 1 μL/mL p -anisaldehyde showed remarkable antifungal ability against Aspergillus flavus spore germination and mycelium growth. Experiments of peanut seeds infection showed that 4 μL/mL p -anisaldehyde inhibited the development of A. flavus spores on peanuts by 95.5% and the production of aflatoxin B1 production by 69.4%. Transcriptome analysis suggested that differentially expressed genes were primarily associated with spore growth, cell wall, cell membrane, oxidative stress, and energy metabolism. Physiological and biochemical experiments as well as scanning electron microscopy, fluorescence staining, and enzyme activity assay, further confirmed that p -anisaldehyde destroyed the cell wall, permeability, and ergosterol biosynthesis of the cell membrane and led to decreased mitochondrial membrane potential and accumulated reactive oxygen species. This study provided new knowledge on the antifungal activity of p -anisaldehyde and its mechanism of action, as well as theoretical support for p -anisaldehyde as a possible antifungal agent for the control of A. flavus contamination of food crops.
研究领域:
食品科学
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微生物学
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分子生物学
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植物科学
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DOI
高影响因子
GREEN CHEMISTRY
·
2024
·
IF 9.3
Zuzhi Li,Ya Ma,Xingjie Guo,Yang Cao,Qian Jiang,Mi Gao,Xudong Liu,Daniel C. W. Tsang,Zhicheng Jiang,Bi Shi
Efficient catalytic hydrogenation of lignin-based derivative vanillin (VAN) into valuable chemicals with a high selectivity is important yet challenging because of the lack of selective and active catalysts. Herein, a mixture of polyacrylonitrile (PAN) and water-insoluble tannin (Tan) was employed to create composite fibers through the electrospinning process, resulting in PAN–Tan composite fibers. The formation of hydrogen bonds between the –CN group of PAN and the phenolic –OH group of Tan proved advantageous for high dispersion and reduced physical entanglement, resulting in the production of thinner fibers. Leveraging abundant ortho-phenolic –OH groups of Tan, the PAN–Tan fibers were used to adsorb Pd2+ ions, which were reduced by in situ reduction process to Pd0 particles. Higher solute concentrations in the spinning solution improved the homogeneity of the electrospun PAN–Tan fibers, facilitating the dispersion and reduction of adsorbed Pd2+ on the fiber surface. Subsequently, these Pd/PAN–Tan fibers served as catalysts for the selective hydrogenation of the –CHO group of VAN to produce vanillyl alcohol (VAL) in an aqueous phase. Over 99% of VAN could be hydrogenated into VAL at 50 °C for 60 min under 0.5 MPa H2. Moreover, the catalyst exhibited universal applicability for the hydrogenation of diverse typical lignin-based aromatic aldehydes. The catalytic hydrogenation of VAN was then extended to a fixed-bed reactor for 24 h, and only VAL was detected in the effluent. Our study underscored the low energy consumption for catalyst preparation without additional reducing agents and high temperature carbonization process, the stability and reusability of the Pd/PAN–Tan fiber catalyst and its potential for large-scale industrial applications.
研究领域:
材料科学
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催化化学
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生物质利用
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DOI
高影响因子
CARBOHYDRATE POLYMERS
·
2024
·
IF 10.7
Jilong Wang,Qianzhu Lin,Chao Qiu,David Julian McClements,Hangyan Ji,Zhengyu Jin
In this work, composite biopolymer foams from chitosan and whey isolate protein amyloid fibrils were prepared for the removal of phthalate esters from water. Natural aldehyde functionalization enhanced the affinity for dibutyl phthalate (DBP), with citral being the most effective. The citral-grafted foams (WCGC) had tunable hydrophobicity, strong mechanical properties, and good water stability. WCGC1.5 foam exhibited a high removal efficiency (96.06 %) of DBP. The adsorption process reached adsorption equilibrium rapidly within 8 h and could be described by pseudo-second-order kinetic and Freundlich isotherm models, indicating a non-homogeneous and chemisorptive sorption process. The maximum adsorption capacity for DBP reached 332.42 mg/g. Moreover, DBP adsorption could be enhanced in alkaline environment and the removal efficiency increased to 98.27 % at pH 10. The removal efficiency of DBP by WCGC1.5 remained above 85 % after the five adsorption-desorption cycles. WCGC1.5 also showed broad-spectrum adsorption behavior, with strong affinity and removal efficiency for six common plasticizers, including DIBP (85.97 %), DPP (91.7 %), DHXP (99.1 %), DEHP (99.09 %), DNOP (91.6 %) and BBP (89.88 %).
研究领域:
环境科学
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材料科学
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DOI
PubMed
高影响因子
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
·
2024
·Vol. 171
·期 8
·085501
·
IF 3.1
Yinghong Zhu,Minling Zhou,Zhanbang Ge,Yufeng Jiao,Menghui Wang,Wujin Peng
An efficient and transition-metal-free synthesis strategy of aromatic nitriles from corresponding aldehydes with H2SO4(NH2OH)2 as the nitrogen source and Cl−/ClO− as the redox mediator was developed. The redox Cl−/ClO− showed electrochemical reversibility in acidic condition. The possible mechanism involving the transformation of Cl−, the generation and electrochemical reduction of nitrile oxides based on the results of cyclic voltammetry and constant current electrolysis was proposed.
研究领域:
有机化学
·
电化学
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产品关联
DOI
高影响因子
CHEMISTRY & BIODIVERSITY
·
2024
·
IF 2.3
Chuwen Liu,Wengui Duan,Xianli Ma,Guishan Lin,Baoyu Li,Huan Deng
In order to develop new antifungal molecules and explore further applications of natural products, 25 novel amide-urea compounds were synthesized from anethole in this work by a few simple reactions, and structural confirmation was conducted using 1 H-nuclear magnetic resonance ( 1 H-NMR), 13 C-NMR, high-resolution mass spectrometry, and Fourier transform infrared spectroscopy. Preliminary bioactivity tests were performed against eight plant pathogens. The results demonstrated that all compounds exhibited antifungal activity against the tested fungi, and 5p exhibited the most potent antifungal activity. To explore the action mechanism of the antifungal compounds, the inhibitory activity of 5p against succinate dehydrogenase (SDH) was evaluated and found to be comparable to that of boscalid. Furthermore, the binding mode of the compound to SDH was simulated by molecular docking, and similarities between 5p and boscalid's binding with SDH were identified. The results indicate that further investigation of compound 5p may prove beneficial in determining its potential as a fungicide. Graphical Entry for the Graphical Illustration.
研究领域:
植物化学
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分子生物学
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农药科学
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DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Yanli Yang,Keke Guo,Yifei Liu,Min Xing,Maochun Zhu,Xue Bai,Ying Lu,Yingjie Hu,Shuxia Liu
Quinazolinone derivatives are an important class of pharmaceutical and pesticide intermediates, which are generally synthesized starting with the condensation reaction between aldehydes and 2-aminobenzamide to obtain corresponding intermediates and then oxidized to obtain the products. Although some catalysts have been developed currently for the synthesis of quinazolinone derivatives, their catalytic efficiency is relatively low because only the oxidative catalytic sites of the catalyst have been focused on. Herein, we synthesized three new polyoxometalate-based metal–organic frameworks, [CuI4(4,4′-bipy)7(Hn–1PMo12–nVnO40)]·2H2O (n = 1–3), which were formed by coordinating a Cu(I)-bipy complex with different Keggin-type phosphomolybdic acids. An important feature of these compounds is that they possess proton and multioxidative active sites [Cu(I) center and V(V) center]; thus, we applied them to the catalytic synthesis of quinazolinone derivatives. The results indicate that compound 3 has an excellent catalytic activity. Based on density functional theory calculations, it is speculated that protons participate in the aldehyde amine condensation reaction, which changes the reaction pathway and reduces the activation energy from 55.1 to 31.4 kcal/mol, thereby increasing the reaction rate significantly. Interestingly, Raman spectra and electron paramagnetic resonance measurements indicate the presence of CuIIOO• and •O2– during the oxidative dehydrogenation process, which facilitates the rapid consumption of 2-phenyl-2,3-dihydroquinazolin-4(1H)-one intermediates, thereby promoting the chemical reaction to move toward the positive direction. Thanks to the synergistic effect of multicatalytic sites, compound 3 achieved highly efficient catalytic synthesis of quinazolinones with 99% yield in 1 h.
研究领域:
化学
·
材料科学
·
催化反应
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DOI
PubMed
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2024
·
IF 3.8
Hongyu Qu,Xiangcheng Li,Xiao Han,Junjie Li,Xinqiang Feng,Chuang Liu,Zhendong Wang,Weimin Yang
Rational design of highly efficient non-noble-metal catalysts for the selective hydrogenolysis of biomass platform compounds to produce fuels and fine chemicals is a key pursuit for the sustainable chemical industry. In this work, we report for the first time the synthesis of a Ni-supported germanosilicate zeolite (Ni-SCM-14) catalyst by a simple grinding method, showing both satisfactory yield (90.3%) and good stability in eight cycles for the hydrogenolysis of 5-hydroxymethylfurfural (HMF) to 2,5-dimethylfuran (DMF). Characterization revealed that Ni nanoparticles were highly dispersed on the SCM-14 zeolite with strong interactions. The synergistic effect of highly dispersed Ni hydrogenation sites and the weak acidity activation of the C–O bond provided by SCM-14 is considered to be the key to the efficient hydrogenolysis of HMF. This discovery opens up a new avenue for germanosilicate zeolite to activate the C–O bond.
研究领域:
催化化学
·
生物质转化
·
材料科学
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产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2026
·
IF 8.7
Ting Du,Yikai Song,Shuo Shi
Conventional food packaging functions as a passive barrier, failing to dynamically counter microbial contamination that accounts for 30–40% of postharvest losses. Herein, inspired by polyphenol coordination chemistry, a light-driven, metal-phenolic coordination system was engineered with programmable reactive oxygen species (ROS) release for active polysaccharide films. FQM nanoparticles (FQM NPs) were prepared via a one-pot supramolecular assembly of ferrous ions, plant-derived quercetin, and aromatic aldehyde, and subsequently incorporated homogeneously into a gelatin/κ-carrageenan (GCA) matrix. The resulting 0.5 wt% FQM-GCA film exhibits multifunctionality: mechanical reinforcement, enhanced gas barrier, and photodynamic antimicrobial activity via breaking the ROS balance by light irradiation. This system achieved complete inactivation (100%) of Staphylococcus aureus and Escherichia coli and > 99.4% suppression of fungal pathogens ( Penicillium expansum and Botrytis cinerea ). Comprehensive validation from nanostructure characterization to postharvest preservation of diverse agricultural products demonstrates a significant shelf-life extension. This work establishes a green, precise, and multifunctional platform for next-generation active packaging, aligning with circular economy principles and providing a transformative solution for sustainable food preservation. FQM-GCA nanocomposite films re-synthesized via green chemistry by integrating quercetin-based assemblies with the GCA matrix, exhibiting high photo-active antimicrobial efficacy and enhanced multifunctional properties for sustainable food packaging. Download: Download high-res image (296KB) Download: Download full-size image
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危险品化学品经营许可证（带存储）