JOURNAL OF MOLECULAR LIQUIDS
·
2022
·
IF 6.633
Qi Li,Yang Feng,Yi-Ting Li,Yu-Hao Ning,Ping Hu,Chuan-Huang Lin,Yi-Hong Zhang,Mei Zhou,Lin-Ping Yu,Chuan-Chang Li,Zhong Cao,Ju-Lan Zeng
In this work, pristine multiwalled carbon nanotubes (MCNTs) and mixed acids treated MCNTs (ACNTs) were applied as reinforcement fillers to prepare silica aerogels via ambient pressure drying followed by lyophilization. The prepared aerogels were then used as supporting materials to adsorb meso -erythritol (ME) to obtain novel form-stable PCMs by vacuum infiltration. Investigation of the prepared form-stable PCMs revealed that the ACNT/SiO 2 aerogels possessed higher porosity than MCNT/SiO 2 aerogels due to that the ACNTs exhibited stronger interactions with silica than the MCNTs, and could more effectively prevent the prepared ACNT/SiO 2 aerogels from collapsing and shrinking during drying. Consequently, the loading of ME in the form-stable PCMs supported by ACNT/SiO 2 aerogels (AFPCMs) was greatly higher than that in the form-stable PCMs supported by MCNT/SiO 2 aerogels (MFPCMs). When ACNT/SiO 2 -6 aerogel, in which 60 mg ACNTs were used as reinforcement filler, was applied as supporting material, the obtained form-stable PCM (AFPCM-6) exhibited a very high melting latent heat of 297.3 J/g, an elevated crystallizing temperature of 56 °C and an improved crystallizing latent heat of 231 J/g. Besides, the latent heat storage/release properties of AFPCM-6 maintained stable enough over 50 melting/crystallizing cycles. Meanwhile, the thermal conductivity of AFPCM-6 was 37.5 % higher than that of pure ME. Hence, AFPCM-6 could be an excellent form-stable PCM and could find its applications in related fields.
研究领域:
材料科学
·
能源存储
✓ 已验证
DOI
高影响因子
JOURNAL OF MOLECULAR LIQUIDS
·
2012
·
IF 1.58
Yonghong Hu,Xinmin Jiang,Wenge Yang,Zhaoguo Chen,Xiaoqin Meng,Fei Shen
In this study the solubility of erythritol in methanol + water, ethanol + water, and 1-propanol + water was experimentally measured over the temperature range of (278.15 to 333.15) K at around 5 K intervals by employing an analytical stirred-flask method. Experimental result shows that the solubility of erythritol in the binary mixtures increases with the increase of both temperature and mole fraction of water. Results of these measurements were well correlated with the modified Apelblat equation and the Buchwski–Ksiazaczak λh equation. It was found that the modified Apelblat equation could give the better correlation results than the Buchwski–Ksiazaczak λh equation. In addition, the calculated results show good agreement with the experimental solubilities. Therefore, the experimental data and model parameters would be useful for optimizing the process of purification of erythritol in industry.
研究领域:
食品科学
·
化学工程
✓ 已验证
DOI
高影响因子
Nature Communications
·
2024
·Vol. 15
·期 1
·1-13
·
IF 14.7
Yang Sheng,Shi Hong-Yi,Liu Jia,Lai Yang-Yan,Bayer Özgür,Fan Li-Wu
Seasonal storage of solar thermal energy through supercooled phase change materials (PCM) offers a promising solution for decarbonizing space and water heating in winter. Despite the high energy density and adaptability, natural PCMs often lack the necessary supercooling for stable, long-term storage. Leveraging erythritol, a sustainable mid-temperature PCM with high latent heat, we introduce a straightforward method to stabilize its supercooling by incorporating carrageenan (CG), a bio-derived food thickener. By improving the solid-liquid interfacial energy with the addition of CG the latent heat of erythritol can be effectively locked at a very low temperature. We show that the composite PCM can sustain an ultrastable supercooled state below −30 °C, which guarantees no accidental loss of the latent heat in severe cold regions on Earth. We further demonstrate that the common ultrasonication method can be used as the key to unlocking the latent heat stored in the CG-thickened erythritol, showing its great potential to serve as a high-performance, eco-friendly PCM for long-term seasonal solar energy storage.
研究领域:
可再生能源
·
材料科学
·
环境科学
·
能源存储
✓ 已验证
产品关联
DOI
PubMed
高影响因子
BIOCATALYSIS AND BIOTRANSFORMATION
·
2018
·
IF 1.06
Lu Dai,Cui Tai,Yaling Shen,Yali Guo,Fei Tao
1,4-Butanediol (BDO) biosynthesis from renewable resources is of increasing interest because of global energy and environmental problems. We have previously demonstrated the production of BDO from erythritol by whole-cell catalysis. Here, the effects of several variables on BDO production were investigated, including cell density, temperature, substrate concentration and pH. It was found that the maximum BDO production was obtained at cell density (OD600) of 30. Low temperature and weak alkaline environment were beneficial for the biotransformation. Regarding substrate concentration, 80 g/L of erythritol was found to be optimum for the bioconversion. Under the optimal conditions, the highest concentration of BDO reached 34.5 mg/L, resulting in 5.8-fold increment after optimization. These results will provide useful guidance for enhancing the bioconversion of erythritol to BDO.
研究领域:
生物化学
·
工业微生物学
✓ 已验证
产品关联
DOI
高影响因子
MACROMOLECULAR CHEMISTRY AND PHYSICS
·
2023
·Vol. 224
·期 8
·2200451
·
IF 2.5
Xin Guo,Xinxin Fang,Songhong Fan,Junfei Gao,Qun Gu
The highly reactive erythritol dicarbonate (EDC) allows facile design and preparation of solvent- and catalyst-free epoxyurethane polymers. Diglycidyl ether of bisphenol-A (DGEBA) and oligo polyhydroxyurethanes are used to produce epoxyurethane polymers (o-PHUs). The o-PHUs are prepared using cyclic carbonates derived from erythritol and various diamines (aliphatic amine and polyether amine) or polyamines (diethylene triamine (DETA) and triethylne tetramine (TETA)). Active secondary amino groups derived from o-PHUs polyamines form hydrogen bonds between urethane carbonyls in epoxy hybrid networks with the highest cross-linking density (1293 mol m −3 ), glass transition temperature T g (93 °C), and ultimate tensile strength (34 MPa). And the ether bond provides a significant potential for hydrogen bonding between hydroxyl group and ether oxygen, forming strong hydrogen bond cross-linking between molecular chains, with cross-linking density and ultimate tensile strength comparable to polyepoxyurethane derived from polyamines, except for a lower T g (27 °C). In addition, these polyepoxyurethanes have superior adhesion to wood, aluminum alloy, and polymethyl methacrylate (PMMA) substrates. This versatile oligo PHUs would provide a wide range of fabrication options for adhesive epoxyurethane polymers.
研究领域:
高分子科学
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材料科学
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化学工程
✓ 已验证
产品关联
DOI
高影响因子
Materials Today Communications
·
2024
·
IF 3.7
Jia Mi,Yingchun Li,Wensheng Wang,Zhimao Li,Tong Liu,Guang Nie,Zheyu Zhang
Bio-based copolyesters have garnered significant attention in the domains of packaging and agriculture due to their exceptional degradability and mechanical properties. Building upon existing research, this study further modifies bio-based copolyesters with the objective of enhancing their comprehensive mechanical properties and broadening their application scope. High-performance aromatic copolyesters were synthesized through a two-step esterification and polycondensation process, utilizing terephthalic acid, adipic acid, 1,4-butanediol, and erythritol as raw materials. The structures of the synthesized copolyesters were characterized using FTIR, 1 H NMR, 13 C NMR. Compared to PBAT, the tensile strength and elongation at break of the copolyesters demonstrated improvements of 22.14 % and 80.14 %, respectively. Moreover, the tear strength and puncture resistance of the copolyesters were enhanced by 25.10 % and 54.13 %, respectively. TG indicated that the copolyesters exhibit high thermal stability. Notably, these copolyesters maintained good degradability after 35 days at ambient temperature. In conclusion, the enhancement of both mechanical and degradation properties of copolyesters was imperative for the advancement and promotion of degradable foams, films, and elastomers.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
·
2026
·
IF 6.7
Binge Zhang,Jingwen Zhang,Feiyu Duan,Zehui Xuan,Tong Sun,Lili Lu
Erythritol is a widely used sweetener with beneficial properties and bioactivities, including the inhibition of Streptococcus mutans, a bacterium that induces dental caries. Galactosylation of compounds is an attractive method for improving antimicrobial activity. In this study, a novel metagenomic β-galactosidase gene, bga7, was successfully expressed in Escherichia coli. The recombinant enzyme was used to galactosylate erythritol, generating a high yield (93.6%) of galactoside product at a concentration of 2 U/mL upon incubation with 20 mM o-nitrophenyl-β-d-galactopyranoside and 0.5 M erythritol at 40 °C and pH 9.0 for 4 h. The product was confirmed to be β-galactosyl-erythritol by MS and NMR analysis. This galactoside demonstrated significantly enhanced inhibition of both the planktonic growth of S. mutans and biofilm formation compared to erythritol alone. Further investigation into the mechanism revealed that the galactoside suppressed the transcriptional levels of four important genes (gtfB, ftf, srtA, and spaP) associated with bacterial adhesion and biofilm formation.
✓ 已验证
DOI
PubMed
高影响因子
CARBOHYDRATE RESEARCH
·
2012
·
IF 2.332
Junhui Xue,Xiaohui Hua,Weihong Li,Limin Yang,Yizhuang Xu,Guozhong Zhao,Gaohui Zhang,Chunping Li,Kexin Liu,Jia’er Chen,Jinguang Wu
Three novel lanthanum chloride–erythritol complexes (LaCl 3 ·C 4 H 10 O 4 ·5H 2 O (LaE(I)), LaCl 3 ·C 4 H 10 O 4 ·3H 2 O (LaE(II)), and LaCl 3 ·1.5C 4 H 10 O 4 (LaE(III)) were synthesized and characterized by single crystal X-ray diffraction, FTIR, far-IR, THz, and Raman spectroscopy. The coordination number of La 3+ is nine. LaE(I) and LaE(II) have similar coordination spheres, but their hydrogen bond networks are different. Erythritol exhibits two coordination modes: two bidentate ligands and tridentate ligands in LaE(III). Chloride ions and water coordinate with La 3+ or participate in the hydrogen-bond networks in the three complexes. Crystal structures, FTIR, FIR, THz, and Raman spectra provide detailed information on the structures and coordination of hydroxyl groups to metal ions in the metal–carbohydrate complexes.
研究领域:
化学
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
PROPELLANTS EXPLOSIVES PYROTECHNICS
·
2025
·
IF 2
Xiaolan Song,Jie Wang,Yi Wang,Chongwei An,Fengsheng Li
By using microfluidic technology and controlling the difference in flow rate between the oil and water phases, highly spherical nB/nitrocellulose (NC)/1,2,3,4-butanetetraol tetranitrate (ETN) microspheres with a size of approximately 60 µm were prepared, and their structures and elements were characterized by scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS), x-ray diffraction (XRD), infrared (IR), x-ray photoelectron spectroscopy (XPS), and laser microscopy. The catalytic effect of the microspheres on the thermal decomposition of ammonium perchlorate (AP)/DAP-4 was studied in detail using thermogravimetry and differential scanning calorimetry (TG–DSC) testing and burst point testing. The combustion performance of AP/perchloric acid-triethylenediamine ammonium (DAP-4) before and after the addition of nB/NC/ETN microspheres was studied using a high-speed camera, a high-sensitivity IR camera, and a combustion heat measurement instrument. In addition, this study investigated the combustion mechanism of nB/NC/ETN microspheres. After the introduction of nB/NC/ETN microspheres, the thermal decomposition peak temperature of AP/DAP-4 decreased by approximately 30°C, the thermal decomposition activation energy decreased by nearly 150 kJ/mol, and the reaction rate constant increased from 0.37 to 0.77. The results of the combustion experiments revealed that after the addition of nB/NC/ETN microspheres, the combustion of AP/DAP-4 became more intense, and the pressurization rate increased sharply from 1.11 to 6.65 MPa/s. As the burning rate increased, the maximum combustion temperature increased from 1728°C to 1902°C, and the combustion heat increased from −6989 to −13 551 kJ/kg. Moreover, the experimental results indicated that compared with microboron (μB)-based sample, the nanoboron (nB) sample has higher burning rate and combustion efficiency. Therefore, all the experiments simultaneously demonstrated that nB/NC/ETN significantly promoted the thermolysis and combustion of AP/DAP-4. Therefore, the results of this work indicated that nB/NC/ETN microspheres may have potential applications in hypersonic ramjet engines.
研究领域:
含能材料
·
燃烧科学
·
推进工程
·
纳米材料
·
微流控技术
✓ 已验证
产品关联
DOI
高影响因子
Analytical Methods
·
2024
·Vol. 16
·期 11
·1686-1696
·
IF 2.7
Xinyue Zhang,Si Wu,Tao Feng,Yuanhao Yan,Shijing Wu,Yinyu Chen,Yu Wang,Qingmiao Wang,Ning Hu,Li Wang
Based on the versatile properties of bio-derived materials, non-enzymatic assays in combination with electronic devices have attracted increasing interest. Here, we report a novel enzyme-free visualization approach for the detection of erythritol, which is a zero-calorie natural sweetener and serves as an ideal sucrose substitute for diabetics or overweight people who need sugar control. The recognition element of the electrochemical biosensor was constructed by catechol modification on a chitosan-based hydrogel film. The signal transduction was achieved by the competitive binding assay of sweeteners. The results show that 2-fluorophenylboronic acid (FPBA) can form a cyclic boronate ester with the ortho-hydroxyls of both reduced catechol and oxidized quinone, impeding the electron transfer and leading to redox signal attenuation. The addition of sweeteners caused a competitive reaction resulting in bonding between the 1,2-diols and FPBA moieties, and in the recovery of the redox signals. Importantly, the pattern of redox signal changes of catechol can be detected optically, as the oxidized quinone state is darker in color than the reduced catechol state. Using a simple cell phone imaging application, we demonstrate that erythritol can be distinguished from other sweeteners in real samples using the oxidized catechol-Chit0/agarose hydrogel film. Thus, we envision that this method could allow diabetics and people who need to control their sugar intake to detect whether the product contains only erythritol in the field or at home. In addition, this work further illustrates the potential of bio-derived materials for performing redox-based functions and enzyme-free visualization assays.
研究领域:
生物化学
·
分析化学
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF THERMOPHYSICS
·
2023
·Vol. 44
·期 10
·1-18
·
IF 2.2
Li Yan,Wang Shuo,Tan Wangwang,Zhou Shenghui,Zhu Qunzhi
Erythritol (ET) is a promising medium–low temperature organic phase change material. To solve the problems of supercooling, leakage, and low thermal conductivity, expanded graphite (EG) with four different particle sizes of 32 mesh, 50 mesh, 80 mesh, and 100 mesh was used as supporting material. A shape-stabilized composite phase change material (CPCM) with a mass ratio of EG to ET of 9:1 was prepared by the ultrasonic impregnation method. The properties were tested and analyzed by DSC, SEM, FTIR, XRD, and TGA. The experimental results showed that 50 mesh EG was more suitable as an adsorption carrier for erythritol among the four different particle sizes of EG. Compared with pure erythritol, the supercooling degree of 50 mesh EG/ET composite decreased by 35.2 %, the latent heat of solidification increased by 8 %, and the thermal conductivity increased by 250.8 %, which increased the heat storage and release capacity of the material by 19.2 %, and the 50 mesh EG/ET composite phase change material had good thermal stability. In this study, the relationship between the supercooling degree of EG/ET and EG particle size was analyzed, and EG/ET thermal storage materials with high thermal storage density and exothermic density were prepared. It helps to promote the application of EG-based composite thermal storage materials and the development of thermal storage technology.
研究领域:
材料科学
·
热能工程
✓ 已验证
产品关联
DOI
高影响因子
FOOD SCIENCE AND TECHNOLOGY RESEARCH
·
2017
·
IF 0.459
Liangzhi Li,Lina Gu,Xin Ju,Cuiying Hu,Jiaolong Fu,Hongying Cheng,Pei Kang
This study investigated the production of erythritol by Trichosporonoides oedocephalis in response to the varying osmotic pressure. Osmotic pressure was exerted by adding NaCl or KCl into the fermentation broth. It was demonstrated that appropriate raise in osmotic pressure enhanced erythritol production, wherein 5 g/L KCl addition increased erythritol yield by 44.21% compared to the control. The reason for the significant increase in the erythritol production showed that the 5 g/L KCl addition accelerated the glucose utilization in the late period of fermentation time. It was also revealed that 5 g/L KCl increased the activity of erythrose reductase (ER) in the same fermentation period. In bioreactor, the erythritol yield with initial 5 g/L KCl addition was up to 50.54 g/L, which was 47.69% higher than the control (34.22 g/L). The study provided a novel fermentation regulation, that is, economical addition of KCl made more effective production of erythritol when using T. oedocephalis.
研究领域:
微生物学
·
发酵工程
·
生物技术
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）