ACS Sustainable Chemistry & Engineering
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2025
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IF 7.3
Jun Li,Qian Ao,Xinyu Wu,Hongping Yuan,Yu Zhang,Xiaoyu Li,Hailan Lian
2,5-Dimercapto-1,3,4-thiadiazole (DMTD) was used as a cross-linking agent and photoinitiator in conjunction with capsanthin and iodonium salt to construct a photoinitiating system suitable for UV-LED irradiation. In a fully green synthesis method, this photoinitiating system enables the thiol-epoxy polymerization and thiol-ene polymerization of biobased monomers, such as epoxidized soybean oil and eugenol, with final conversion rates exceeding 70%. The structure of the prepared coating becomes denser with increasing DMTD content, leading to improved hydrophobicity, wear resistance, thermal stability, and hardness. At the optimal DMTD content of 20 wt %, the coating EP20 exhibited an adhesion level of 0, an Aspergillus niger (A. niger) infection value of 1, and a water contact angle of 109.7°. The addition of eugenol further enhanced the coating’s antifungal properties, reducing the A. niger infection value to 0. This approach provides significant guidance for achieving sustainable development through “sustainable (biobased prepolymers) + eco-friendly (bioinitiating systems) + green (environmentally friendly curing processes)”.
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高影响因子
CHEMOSPHERE
·
2020
·
IF 5.778
Pengcheng Zhao,Shihu Liu,Wei Huang,Lei He,Jiao Li,Jiong Zhou,Jian Zhou
Essential oils (EOs) are naturally occurring substances that have shown great prospect in the field of antimicrobial, antioxidant and pest control by nontoxic mechanisms. In this regard, EOs are considered the promising and eco-friendly approach for controlling harmful algae. In this study, the anti-cyanobacterial activity of EOs eugenol against Microcystis aeruginosa are evaluated from the perspective of photosynthetic efficiency, the behavior of extracellular organic matter (EOM), endogenous plant hormone synthesis, and nitric oxide signaling pathway. Results showed that the photosynthetic activity of M. aeruginosa decreased significantly after eugenol treatments. Eugenol treatment resulted in cells rupture and the release of EOM. Levels of endogenous plant hormones salicylic acid (SA) and jasmonic acid (JA) were enhanced separately by 2.32 and 2.01 times after 4 d of exposure to eugenol. And the inhibition of SA and JA biosynthesis further promotes the inhibitory effects of eugenol on algae. Additionally, the signaling molecule nitric oxide (NO) increased significantly by 3.78-fold. Furthermore, the influence of NO on microalgae exposed to eugenol was also determined, suggesting that the inhibitory effect of eugenol stress might be associated with NO generation in M. aeruginosa . These findings will be helpful for the understanding of the fate and potential of eugenol in harmful algae control.
研究领域:
环境科学
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微生物学
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植物生理学
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生态毒理学
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高影响因子
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
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2019
·Vol. 92
·期 3
·723-735
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IF 1.986
Chen Huayao,Li Juncai,Shen Zhichuan,Zhou Hongjun,Hao Li,Xu Hua,Zhou Xinhua
The mesoporous silica nanoparticles (MSN) was modified by salicylaldimine, furfuralimine, and benzaldehyde imine, respectively, denoted as Sal-MSN, Fur-MSN, and Ben-MSN for methyl eugenol (Me) delivery by one-step method. The results confirmed that Me was successfully adsorbed by Schiff base mesoporous silica, which maintained regular hexagonal pore structure. Me is distributed in amorphous state in the pores of the mesoporous silica indicated by differential scanning calorimeter (DSC) curves. Schiff base modification strengthened the interaction between Me and mesoporous silica, leading to its higher sustained-release performance and the disappearance of sudden release in sustained-release performance comparing with Me-MSN before Schiff base modification. Me and Me-MSN were most consistent with the First-order kinetic and logistic equation, respectively. After Schiff base modification, Me-Sal-MSN, Me-Fur-MSN, and Me-Ben-MSN were most consistent with Korsmeryer–Peppas kinetic equation. Therefore, the difference of Me concentration was no longer the main control factor of sustained-release system after Schiff base modification. In the attraction of Bactrocera dorsalis test, the lure efficiency for per unit Me for Me-MSN, Me-Sal-MSN, Me-Fur-MSN, and Me-Ben-MSN equal to 2.83, 3.31, 3.32, 4.24 times of pure Me. After Schiff base modification, the samples showed higher lure efficiency due to their ideal sustained-release performance without sudden release. In short, the lure efficiency of Me was improved by the Schiff base mesoporous silica sustained-release system, in the meanwhile its service life was also prolonged.
研究领域:
材料科学
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昆虫学
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农业科学
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高影响因子
CATALYSIS TODAY
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2014
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IF 3.309
Cong Zhang,Jing Xing,Liang Song,Hongchuan Xin,Sen Lin,Lishu Xing,Xuebing Li
Aqueous phase catalytic upgrading of phenolic monomers to hydrocarbons have been explored using Pd/C combined with HZSM-5 zeolite catalysts in the presence of H 2 . 2-Methoxyl-4-allylphenol (eugenol), which consists of methyl ether bond, hydroxyl group, aromatic ring and propyl olefin bond, was chosen as a classic lignin model compound. This research focuses on the relationship between the acidity of zeolites and the deoxygenation activities basis on the hydrodeoxygenation (HDO) of eugenol. The results indicated that the decrease of Si/Al ratio resulted in the increase of the acidity of the zeolites, which significantly influenced their catalytic performance for product distributions. Over the HZSM-5 (Si/Al = 12.5) catalyst, the 2-methoxyl-4-propylphenol conversion of 86.5% and the hydrocarbon selectivity of 73.4% were obtained with the HDO of eugenol under 513 K and 5 MPa hydrogen pressure. Owing to the lower selectivity of hydrocarbon with HZSM-5 (Si/Al = 50) as acidic catalyst, the pore treatment was used to enlarge the outer surface of zeolite. After modified by alkali-treatment, much more acid active sites were provided for feasible accessibility of oxygenated reactants. The selectivity of hydrocarbons was improved by the alkaline treatment of HZSM-5 zeolite with 0.3 mol L −1 sodium hydroxide solution.
研究领域:
化学工程
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催化科学
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高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2024
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IF 5.6
Xuanhao Huang,Xinyi Guo,Yao Meng,Shaobo Lou,Xinxing Wu,Yan Zhang,Renzhong Wei,Shuaibo Han,Fangli Sun,Hui Wang
Bamboo, which has excellent physical properties and environmental credentials, is widely used in the construction industry and furniture manufacturing. Bamboo is, however, susceptible to attack by molds and bacteria; protection by natural phenolic antimicrobial agents would be a green and environmentally friendly solution to this problem. The application of such protection has, so far, been hampered by poor stability and ease of volatilization of the antimicrobial agent. Here, an innovative strategy that uses the catalytic action of the laccase to chemically attach a natural antimicrobial agent, eugenol (EU), to bamboo, is described. This modification endows bamboo with both long-lasting and extensive mold resistance and antibacterial activity. Laccase-catalyzed covalent bonding of EU to bamboo reduces the volatilization rate of the EU from 1.72 % to 0.29 %. The outstanding mold resistance and antimicrobial activity of bamboo treated using this modified process is retained during a 50-day mold resistance test, with mold growth inhibited by as much as 87.5 %. The treated bamboo is also able to inhibit the growth of both Gram-positive and Gram-negative bacteria. The antimicrobial mechanism results shown that the bamboo lignin is the primary reaction site during laccase-catalyzed EU modification of bamboo, and the long-term mold resistance derived from modified lignin. Furthermore, we analyzed bacterial morphology through SEM, and the results demonstrated that modified enzymatic hydrolysis lignin (EHL) significantly disrupts bacterial morphology, including membrane invagination and collapse. This study provides a new direction for the green development of mold- and bacteria-resistant bamboo, which has potential for use in a wide range of application.
研究领域:
材料科学
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微生物学
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植物化学
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高影响因子
JOURNAL OF FOOD PROTECTION
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2015
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IF 1.849
Shengfeng Peng,Liqiang Zou,Wei Liu,Lu Gan,Weilin Liu,Ruihong Liang,Chengmei Liu,Jing Niu,Yanlin Cao,Zhen Liu,Xing Chen
Eugenol is a major phenolic component with diverse biological activities. However, it is difficult to formulate into an aqueous solution due to poor water solubility, and this limits its application. In the present study, eugenol nanoliposomes (EN) were prepared by combining the ethanol injection method with the dynamic high-pressure microfluidization method. Good physicochemical characterizations of EN were obtained. The successful encapsulation of eugenol in nanoliposomes was confirmed by Fourier transform infrared spectroscopy. A good storage stability of EN was confirmed by its low variation of average particle diameter and encapsulation efficiency after 8 weeks of storage. No oil drops were found in EN after 8 weeks of storage at 4°C and at room temperature, which suggested that the poor water solubility of eugenol was overcome by nanoliposome encapsulation. Compared with that of eugenol solution, a relatively good sustained release property was observed in EN. The antibacterial activity of EN against four common foodborne pathogenic bacteria (Staphylococcus aureus, Escherichia coli, Salmonella enterica serovar Typhimurium, and Listeria monocytogenes) was evaluated in both Luria broth and milk medium.
研究领域:
食品科学
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药物递送
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生物化学
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PubMed
高影响因子
RSC Advances
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2016
·Vol. 6
·期 93
·91060-91067
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IF 3.289
Huanle Chen,Xing Jin,Yan Li,Jing Tian
The physical stability of a eugenol (Eu) nanoemulsion in the presence of long-chain and medium-chain triglycerides with a high incorporation ratio (30 wt% to 80 wt% in the lipid phase) was investigated. The stability of the nanoemulsion was evaluated by dynamic light scattering and a centrifugal-force-based LUMi-Sizer. With an increase in the content of triglycerides, the particle size of the nanoemulsions decreased first and then increased. The variation pattern of the particle size in the presence of different contents of triglycerides formed a V-type shape. The presence of 60 wt% triglycerides resulted in the smallest particle size, which continued increasing within 28 days of storage. LUMi-Sizer analyses demonstrated that the instability of the nanoemulsion caused by the addition of 30–50 wt% of triglyceride was due to sedimentation of emulsion droplets. On the other hand, the instability caused by 60–80 wt% of triglyceride was due to the floating of emulsion droplets. The interfacial tension variation had the same trend as the particle size variation at the corresponding content of triglycerides. Thus the interfacial tension might be responsible for the triglyceride-caused instability of the Eu nanoemulsion.
研究领域:
食品科学
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化学工程
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Polymer Chemistry
·
2015
·Vol. 6
·期 40
·7138-7148
·
IF 5.52
Keling Hu,Dongping Zhao,Guolin Wu,Jianbiao Ma
Two eugenol-based aromatic dimethyl terephthalate (DMT)-like monomers were prepared via a thiol–ene click reaction and a subsequent nucleophilic substitution reaction with methyl chloroacetate or 1,4-dibromobutane. Two series of thermoplastic polyesters derived from renewable eugenol and linear aliphatic α,ω-diols HO–(CH2)n–OH (n = 2, 3, 4, 6, 10, 12) were successfully synthesized. These prepared polyesters have weight-average molecular weights in the range of 18 500–90 500 g mol−1, and polydispersity indexes (PDIs) between 1.8 and 2.2. Their chemical structures were all accurately characterized by 1H NMR spectroscopy, 13C NMR spectroscopy and FTIR spectroscopy. The random microstructures of the synthetic polyesters were also explored by 13C NMR spectroscopy. The obtained polyesters all exhibit a thermal stability above 330 °C. More importantly, the thermal stability, the maximum degradation rate and the residue weight are intimately associated with the length of the linear aliphatic α,ω-diol. Their thermo-mechanical properties were studied by differential scanning calorimetry (DSC) and dynamic mechanical analysis (DMA). The length of the linear aliphatic α,ω-diol crucially influences the glass transition temperature (Tg). With the gradual increase in the α,ω-diol length, the Tg of the synthesized polyester exhibits a tendency to decrease. The polyesters are all amorphous materials at room temperature, with Tg values ranging from −28.4 to 7.6 °C. The incorporation of aromatic eugenol into the polyester chains reduces the crystallinity significantly. The Young's modulus and ultimate strength are in the range of 1.2–6.9 MPa and 0.96–3.37 MPa, respectively. On the contrary, the elongation at break reaches up to 840–1000%, indicating the excellent viscosity properties for such unmanageable viscous materials.
研究领域:
材料科学
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有机化学
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高影响因子
ELECTRONIC JOURNAL OF BIOTECHNOLOGY
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2018
·
IF 1.881
Peng-Cheng Chen,Hui Zhang,Pu Zheng
Background Eugenol is an economically favorable substrate for the microbial biotransformation of aromatic compounds. Coniferyl aldehyde is one kind of aromatic compound that is widely used in condiment and medical industries; it is also an important raw material for producing other valuable products such as vanillin and protocatechuic acid. However, in most eugenol biotransformation processes, only a trace amount of coniferyl aldehyde is detected, thus making these processes economically unattractive. As a result, an investigation of new strains with the capability of producing more coniferyl aldehyde from eugenol is required. Results We screened a novel strain of Gibberella fujikuroi , labeled as ZH-34, which was capable of transforming eugenol to coniferyl aldehyde. The metabolic pathway was analyzed by high-performance liquid chromatography–mass spectrometry and transformation kinetics. The culture medium and biotransformation conditions were optimized. At a 6 h time interval of eugenol fed-batch strategy, 3.76 ± 0.22 g/L coniferyl aldehyde was obtained, with the corresponding yield of 57.3%. Conclusions This work improves the yield of coniferyl aldehyde with a biotechnological approach. Moreover, the fed-batch strategy offers possibility for controlling the target product and accumulating different metabolites. How to cite: Chen P-C, Zhang H, Zheng P. Direct biodegradation of eugenol into coniferyl aldehyde and other higher value-added products by Gibberella fujikuroi ZH-34. Electron J Biotechnol 2019;38. https://doi.org/10.1016/j.ejbt.2018.12.001 .
研究领域:
微生物学
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生物技术
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高影响因子
Food & Function
·
2020
·Vol. 11
·期 9
·7509-7522
·
IF 4.171
Yuan Li,Tiantian Wu,Chunhua Wu,Qin Wang,Peihua Ma,Ying Shao,Haixia Yu,Yaqin Hu
Eugenol-loaded chitosan emulsion (ELCE) has been proved to have an excellent antibacterial property. In this study, the texture of ELCE-treated hairtail was found to be better than that of the control group. The method of iTRAQ labeled quantitative proteome analysis was used to clarify the mechanism for the phenomenon that ELCE retained the texture of chilled hairtail at the molecular level. Compared to the protein composition at the starting point of storage, for ELCE-treated and control groups, 277 and 187 proteins were selected as differential proteins for ELCE-treated hairtail, respectively. For treated and control groups at the endpoint of storage, myosin heavy chain, slow myosin heavy chain 2, and myosin were the top 3 significantly high content proteins of ELCE-treated hairtail, suggesting a better texture from the view of structure-related proteins. By preventing microbial degradation of structural proteins, ELCE kept the texture of hairtail, providing customers with high-quality hairtail.
研究领域:
食品科学
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蛋白质组学
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水生生物学
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PubMed
高影响因子
POSTHARVEST BIOLOGY AND TECHNOLOGY
·
2021
·
IF 5.537
Yi Li,Long Guo,Zhiqin Zhou
Penicillium italicum ( P. italicum ), the cause of citrus blue mould, is a pathogenic fungus that seriously affects the postharvest quality of citrus fruit and causes severe economic loss. Our previous research showed that adding limonin to eugenol nanoemulsion could improve the antifungal activity, and inhibited the growth of P. italicum on the surface of citrus fruit. Accordingly, the present study aimed to investigate the underlying mechanism of limonin-loaded eugenol emulsion (EuLm) against P. italicum based on the influence on membrane structure and intracellular substance metabolism. Results indicated that EuLm showed disruptive activity on the fungal cell membrane, mitochondrial membrane potential and the ergosterol synthesis. Meanwhile, EuLm treatment causes the intracellular substances of total lipids, cell proteins and total sugars to decrease by 56.7 %, 37.4 % and 17.4 %, respectively. GC–MS-based metabolomics showed 34 metabolites declined after EuLm treatment, including amino acids, fatty acids, carbohydrates, alcohols, and glycosides. The results suggested that EuLm interferes with fungal metabolic pathways, such as the TCA cycle, lipid metabolism and protein synthesis. Our study provides new insight into exploring the underlying mechanisms of antifungal phytochemicals against P. italicum .
研究领域:
植物化学
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微生物学
·
食品科学
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高影响因子
Food Chemistry-X
·
2023
·
IF 6.1
Gengan Du,Qi Guo,Liyue Qiang,Shuaidan Chang,Xiaohai Yan,Hong Chen,Yahong Yuan,Tianli Yue
This study aimed to evaluate the application of encapsulated L . plantarum and eugenol as potential biocontrol agents in sliced apples. The combined encapsulated L . plantarum and eugenol treatment was more effective than separate encapsulated L . plantarum and eugenol treatments, with regards to browning inhibition and consumers panel test. The application of encapsulated L . plantarum and eugenol reduced the decline of the physicochemical qualities of the samples, and improved the ability of antioxidant enzymes to scavenge reactive oxygen species. Furthermore, reductions in the growth of L . plantarum of only 1.72 log CFU/g were observed after 15 days of storage at 4 °C for samples treated with encapsulated L . plantarum and eugenol. Results suggest the combined encapsulated L . plantarum and eugenol appears to be a promising method to protect fresh-cut apples from food-borne pathogens while maintaining the visual appearance.
研究领域:
食品科学
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微生物学
·
采后技术
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PubMed
高影响因子
危险品化学品经营许可证（带存储）